3D Door Manufacture

8/6/2019 3D Door Manufacture

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3D-D MnufctuQuality Guide

Industrieverband

Kunststoffbahnen e.V.

E-mail: [email protected] Mobile: (91) 99200 71716


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Introduction Objectives

1 Application Description o application and purpose

2 Description o materials 2.1 Thermoplastic urniture oils (hard PVC*) 2.1.1 Product structure 2.1.2 Primers

2.1.3 Quality guidelines

2.2 Polyurethane dispersions (PUD)

2.3 Fibreboard panels (MDF)

3 Transport, shel live, storage 3.1 Furniture oils o materials

3.2 Polyurethane dispersions

3.3 Fibreboard panels (MDF)

4 Preparation o materials 4.1 Preparation (general measures)

4.2 Cutting/routing

4.3 Preparation o polyurethane dispersions

4.3.1 Checks beore use 4.3.2 Adding the crosslinker

or 2-component products 4.3.3 Pot lie considerations

5 Processing o materials 5.1 Adhesive application 5.1.1 Adhesive application equipment 5.1.2 2 Adhesive application 5.1.3 Drying the adhesive coating

5.2 Pressing 5.2.1 Pressing systems / parameters

5.2.2 Preparing the pressing cycle 5.2.3 Laminating process 5.2.4 Heat platen and/or membrane temperatures 5.2.5 Preheating time and temperature 5.2.6 3D orming 5.2.7 Cutting and trimming 5.2.8 Crosslinking time

6 Glossary

7 Legal inormation Disclaimer

Content




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Three-dimensional urniture ronts, in short 3D or oil-laminated urniture ronts, are used today

all around the world or all types o urniture, mainly or cabinets in the bathroom and kitchen

area, but also or living rooms and bedrooms.

Innovative developments with regard to the ormulation o the materials used, plus the very high

degree o automation in the 3D oil laminating process, including the preparative and nishing

steps o the pieces in the manuacturing line all these actors add up to a highly complex

knowledge pool to which processors must have access to enable them to master the handling

and manuacturing processes required or these materials.

Top-ranking companies rom the entire chain o manuacturing, rom the raw materials

manuacturer to the processor, have thereore ormed an initiative group in which the wealth o

inormation and know-how can be pooled and made available to the processor.

The main objective is to achieve the utmost in quality in these urniture ronts, taking into account

the specic properties o the material, while maintaining the correct processing environment

and manuacturing procedures, to provide a durable and reliable product to both urniture

manuacturers and the nal consumer.

Another point o equal importance is the harmonization o the specications in terms o materialproperties, storage conditions, processing parameters and test methods.

Accompanied by a consistent documentation o all relevant data gathered throughout the entire

process, it acilitates continuous batch traceability and guarantees optimum quality control.

We want to thank all companies involved or their close cooperation and trust, which made it

possible to compile the extensive know-how o all participants in this document.

The 3D Initiative Group

Introduction




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Dciptin f ppictin nd pup

Thermoplastic 3D urniture oils* are high-quality nishing materials which are used on

thermoorming presses, with and without membranes, to laminate breboard (MDF) or kitchen

cabinets, living room, bathroom and oce urniture.

It can be processed on all standard thermoorm presses which operate with heat, pressure and

vacuum, and which use a PUD adhesive to achieve a lasting bond on breboard (MDF).

(*The ollowing descriptions or materials, specications and instructions or processing reerexclusively to hard PVC oils).

1 Application

3D-D MnifctuQuality Guide



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2.1 Thmptic 3D funitu fi

Furniture oils with thermo-orming properties or use on thermoorming presses with or without

membranes are impact-resistant hard PVC oils with single or multilayer structures.

Their suraces are protected by a highly light-resistant lacquer on PUR/acrylate basis.

The reverse side o the oils is coated with primer to ensure a sae and temperature-resistant

bond.

The thermoplastic 3D urniture oils mainly consist o

PVC,llerssuchaschalkandpigments

stabilizers

minimalpercentagesofplasticizers(noDEHP!).

In conormance with German Consumer Goods Act (Bedarsgegenstndeverordnung) as

amended 8 August 2007 and Chemical Prohibition Order (Chemikalienverbotsverordnung) as

amended 3 September 2007, the ollowing substances are not used in the manuacture o these

oils:

Formaldehyde

Cadmium,lead,mercuryandchromiumcomposites(chromium6)

Azodyesorlead-containingpigments

according to the legal requirements on chemicals and limit values applicable in Germany with

their latest revisions (Bedarsgegenstndeverordnung 08-08-2007, Chemikalienverbotsver-

ordnung 03-09-2007).

2 Description o materials - Foils


Please observe!

Hard PVC foils with protective lacquer and

reverse side primer

No DEHP plasticizers

No components classied as restricted

chmic



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2.1.1 Pduct tuctu f ing nd mutiy fi (tndd thickn 0.40 mm)



Single-layer oil

Lacquer

Lacquer

Print

Base lm

Transparent lm

Base lm

Primer

Primer

Multilayer (printed dcor) oil



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2.1.2 Pim

In order to guarantee a durable and lasting bond quality, in the manuacturing process special

attention is paid to the reverse side o the oil. This is coated with a special primer system.

Boththerawmaterialsandtheapplicationprocessaresubjecttocontinuous

surveillance.

Constantandoptimumapplicationisguaranteedbydenedapplicationrollers.

Theappliedprimerisspeciallyselectedtoharmonizewiththeadhesivesystems

developed by the adhesive manuacturers.

Otherparameterstobestrictlycontrolledduringthefoilmanufacturingprocessare

the mechanical properties, e.g. dimensional and embossing stability and tensile strength.

The respective data and tolerances are specied in the quality guidelines o the German

Association o Foil Manuacturers (Industrieverband Kunststobahnen IVK) together with the

applicableDIN/EN/ISOstandards.



Please observe!

Ongoing checks of raw materials and processes

Primer application with dened rollers only

Primer/adhesive system is harmonized

Mechanical properties control

Specication according to IVK quality guidelines



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2.1.3 IVK quality guidelines

Material specication for 3D foils

Application: Furniture / vertical suraces

Characteristics / testing procedures Unit Data / tolerance

1. Thickness mm 0.30 0.50 7.5 %DIN 53353

2. Dimensional change % longit. max. - 5 %

DIN 53377, 10 min., 100 C, circul. air across max. + 2 %

3. Embossingstability - novisiblechangein

10 min., 120 C, circul. air o gloss,embossment colour

compared to standard

4. Light astness - 6

DINENISO4892-2,MethodB

ISO 105 B 02

5. Chemical stability - Class 1 B

DIN 68861, Part 1

6. Scratch resistance N min. Class 4 D 1.0 N

DIN 68861, Part 4

7. Heat resistance dry heat C min. Class 7 C (100 C)

DIN 68861, Part 7

8. Heat resistance moist heat C min. Class 8 B (70 C)DIN 68861, Part 8

9. Abrasion resistance Rev. min. Class 2 D (50 RPM.)

DIN 68861, Part 2

10. Tensile properties N/mm longit. 40

ISO 527-3-200 across 30





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Characteristics / testing procedures Unit Data / tolerance

11. Gloss assessment/tolerances - up to 15 2DIN 67530, 60 measuring head up to 30 3

up to 50 5

over 50 7

12. Colour tolerances solid colour oils - E 0.50

DIN 53236 B (10 /) L 0.30

DIN 6174 a 0.20

(light colours only) b 0.30

13. Colour consistency printed oils - Manuacture and visual evaluation

Comparison prototype o prototype

14. Metamerism index 0.30

DIN 6172 (D65 AN 10)

15. Opacity over black / white - E 0.35

16. Errordenition - Opticalmodicationsareerrorswhen

visible to the naked eye within 30

seconds at a distance o 50 cm

Remarks: All tests are to be carried out on non-laminated oil.Exception:Tests7and8inbondedstate.




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2.2 Polyurethane Dispersions (PUD)

PU Dispersion adhesives (PUD) are water-based special adhesives on polyurethane basis,

especially or lamination o thermoplastic dcor oils (based on PVC, ABS blend, polyester, etc.)

using presses with or without membranes on MDF panels. These adhesives are available and

used in 2 dierent supply orms.

Two-componentreactiveproducts(withcrosslinkeraddedseparately).

Single-component,reactiveproducts(alreadywithintegratedcrosslinker).

Experiencefromtheeldhasshownthatamajorimprovementcanbereachedinseveralpoints

when the reactive products are used.

Improvedadhesiontothefoil.

Improvedadhesiontothebasematerial.

Higherheatresistancelevels.

Increasedresistancelevelstowaterandsteam.

The reasons listed above make the reactive adhesives the only possible choice.

2 Description o the materials - Adhesives


Please observe!

Water-based special adhesives based on

pyuthn

One-component, reactive

(intgtd cink)

Two-component, reactive

(cink h t ddd)



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2.3 MDF wood-based panels (medium density breboard)

The MDF panel is a wood-based substrate consisting o nest sot- and/or hardwood bres that

is homogenous in longitudinal and transverse direction.

The surace is sanded and polished on both sides during manuacture and is melamine-coated

on one side or lamination with 3D urniture oils.

MDF deep-drawing qualities are highly compressed with a ne bre structure and especially

suitable or the manuacture o 3D urniture ronts or all areas o the home.

MDF deepdrawing quality (characterisation)

Moisturecontent(EN322) 62%

Tensilestrengthacrossthepanel(EN319) 0.75 N/mm

Peelresistence(EN311) 1.2 N/mm

Hydrophobingagents 2% solids to absolutely dry wood bre

rmk:

The deep-drawing quality is also referred to as deep-routing quality. Both terms are

commonly used to describe the same MDF panel quality level for manufacturing

th-dimnin mintd funitu mnt.

2 Description o the materials MDF board


Please observe!

Deep-drawing quality/deep-routing quality

with highly compressed core

Fine bre quality, very ne sanding and

excellent surface quality

Superior physical properties



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3.1 Storage recommendations for PVC foils

Storefoilsdryandindoors

Protectagainstdirectexposuretosunorfrost

Theidealstoragetemperatureisfrom5to30C

and RH approx. 50 % = (ideal conditions)

The manuacturer recommends a shel lie o max. 18 months under ideal conditions; or oils

covered with a protective lm, the recommended shel lie is max. 6 months. During storage the

oils should not be subjected to exterior pressure. Beore using, condition the oil at room tem-perature (minimum 18 C) and 50 % RH (= ideal conditions) or 3 days.

3 Transport, shel lie, storage - Materials


Please observe!

Ideal storage temp. 5 - 30 C

Relative humidity approx. 50 %

Max storage time 18 months

With protective lm 6 months



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3.2 Storage recommendations for polyurethane dispersions (PUD)

PUdispersionadhesivescanbestoredintightly-closedoriginalcontainersfor

approx. 6 months, cool and dry (1525 C).

Theadhesivemayonlybeexposedtolowertemperaturesforashorttimeduringtransport,

with a lowest temperature limit or the adhesive o +6 C.

Whentheproductsaresuppliedduringthewintermonths,specialattentionmustbepaidto

the temperature o the containers and samples taken to test or homogeneity.I anything out o the ordinary is noticed, a complaint must be immediately made to the

shipping agent, and the adhesives supplier inormed.

Adhesives delivered cold (


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3.3 stg cmmndtin f MDF pn

Themoisturelevelwithwhichthepanelsaresupplied(62%)ismaintainedduring

storage, when the absolute panel moisture matches the conditions at a standard climate

o 20 C and 65 % RH.

Iftherelativehumidityishigher,theMDFpanelwillabsorbmoisture

(at 85 % RH to approx. 10 % panel moisture).

Iftherelativehumidityislower,theMDFpaneldriesout(at 30 % RH to approx. 4% panel moisture).

Ingeneral,MDFpanelsmustbeprotectedagainstmoisture.Thisalsorequiresthe

appropriate building installations (enclosed halls, no storage under lean-to roos).

Intheeventofclimaticchanges,theacclimatizationofaMDFpanelwilltake36days

depending on its thickness. I the panels are stacked, this may require at least 4 weeks.

Ifpanelsarenotcorrectlystacked,theymaywarp.TherecommendationsoftheMDF

manuacturer must be strictly observed. The number o spacer timbers or level storagevaries according to panel shape and thickness, and depends on whether or not

additional cover sheets are used

rmk:

The recommendations of the respective manufacturer with regard to transport and

storage conditions must be strictly observed.

3 Transport, shel lie, storage - Materials


Please observe!

Wood moisture level 6+/- 2 %

(20 C, 65 % RH)

No outdoor storage

Protect against direct exposure to

sunlight, cold and moisture Store on a level surface to prevent E-mail: [email protected] Mobile: (91) 99200 71716


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4.1 Pptin Gn mu

Beore processing the materials, they must be checked to ensure that

theymeetindividualspecications

theywerestoredaccordingtotheconditionsoutlinedabove(temperature/humidity)

theywereconditionedaccordingtotheparametersoutlinedabove

(temperature/humidity)

theclimateconditionsduringmanufacturingarecontrolledandmaintained

(temperature/humidity).

Particular attention must be paid to ensure that:

theMDFpanelsmeettheindividualspecications.

theresidualmoisturecontentoftheMDFpanelsiscorrect(62%).

theMDFpanelsarenotstraightfromthepressandtoowarm

(>18 and


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4.2 Cutting / Routing

AlltoolsusedonMDFpanelsmustbewell-sharpened

- Cutting on the panel saw

- Routing on a CNC processing centre

-Edgeprolers

- Double-end prolers

- Other nishing tools

MDFpanelsorcutsmustbeworkedatthedenedspeedinordertopreventchang

or cracked edges and proles.

Nosubstancessuchasoiland/orproductscontainingoil/siliconemaybesprayedonto

the panel or components.

Afterroutingthepartsmustbe:

- stored level to prevent warp

-storedinadryandtemperature-controlledroom(observeidealconditions!).- conveyed to the glue station only in a dust-ree and clean atmosphere.

4 Preparation o materials Manuacturing process


Please observe!

Tools must be sharpened

Observe tooling speeds

No use of oily or silicone substances

Store nished parts straight and level, clean and

dry to prevent warping



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4.3 Preparation of the PU dispersion adhesive (PUD)

4.3.1 Check the adhesive container before use

Makeavisualcheckforinhomogeneity,suchasthickeningorseparation,etc.

(i ound, please contact the adhesive supplier beore use).

Stirringbeforeuseisrecommended,butnormallynotrequired.





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4.3.2 Adding the crosslinker and homogenizing when 2-component products are used

Single-component,reactivePUdispersionadhesives:

- These products can be used as supplied.

Two-component,reactivePUdispersions:

- Beore use, the respective crosslinking agent must be added in the required dosage.

The respective technical data sheet indicates which crosslinker must be used.

The crosslinker must be added slowly while stirring, using a mechanical agitator until

homogenous. Foaming must be prevented.

In practice, the crosslinker is stirred under with a standard electric drill with rotor attachment and

RPM settings (regular mixer attachment).

In order to achieve a perect blend o 500 g crosslinking agent in 10 kg PU dispersion adhesive,

a mixing time o about 4 - 5 minutes is required.

Ifthecrosslinkingagentisaddedtoofast,mixingwillbeinadequate.

Thecrosslinkerwillnotbedispersedadequatelyif:

- the mixing unit is unsuitable or inadequate or the batch size

- the mixing time is too short.



Please observe!

Add second component slowly and stir constantly until

hmgnu!

Use mechanical stirring attachment on electric drill

Prevent foaming

Make sure crosslinker is dispersed homogeneously

Follow mixing time instructions, approx. 4-5 min. for 500 g

of crosslinker into 10 kg of PU adhesive



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4.3.3 Pt if cnidtin f 2-cmpnnt pduct

Thereactivityofthecrosslinker(aftermixingintotheadhesivedispersion)

is adjusted to allow the processor a sucient pot lie or processing.

Asarule,theadhesivemixshouldbeusedupwithin46hoursafteraddingthe

crosslinker.

Whenthepotlifeisexceeded,itispossiblethattheoptimumresultsmaynotbereached.



Please observe!

Observe pot life!

46 h after adding the crosslinker

Mix only as much as can be used up within

th pt if tim

Do not exceed the pot life



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5.1 Adhesive application

5.1.1 General information on adhesive application units and equipment

InordertominimizemechanicalstressonthePUDadhesivesapressurized

vessel should be used to convey the adhesive to the spray gun.

Allpartscomingintocontactwiththedispersionshouldbemadeofstainlesssteel

(German standard V4A) or e.g. Tefon, polyamide, PP or other inert plastics.

Avoidcontactwithmetalslikezinc,brassetc.whichmaycausetheadhesiveto

coagulate, leading to uneven application and clogging o nozzles and ductwork.

- Nozzle diameter: 1.5 2.2 mm

- Material pressure: 1.0 3.0 bar

- Atomizer pressure: 3.0 7.0 bar

- Air cap: 2.2 2.5 mm

Whentheproductisprocessedfromapressurizedcontainer,thefollowing

recommendations apply:

For a 4 m long hose with an interior diameter o 8 mm, the material pressure should be

approx. 1 2.5 bar.

5 Processing o materials Manuacturing process




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5 Processing o the materials - manuacturing process


5.1.2 Adhesive application MDF substrate, temperature and grammage

The MDF components have to be prepared very careully.

Thesurfacemustbeabsolutelycleanandfreeofdust.

Eventheslightestcontaminationsorinclusionsofdustparticlesmayshowupon

the oil surace ater lamination.

TheadhesiveisusuallysprayedontotheMDFsubstrateatroomtemperature(>18C).

Edgesandroutedareasaresurfaceswithhighabsorption,sothePUdispersionsmay

penetrate more easily and become totally absorbed.

This means that these areas must receive two adhesive coatings, guaranteeing a

continuous, closed and smooth adhesive coating.

- The rst coat (gap lling) serves solely to close the pores

- ater an intermediate drying interval (o approx. 1 - 3 min at room temperature),- a second coating with the adhesive grammage required or a permanent bond

is applied.



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The minimum temperature or substrates and ambient air is 18 C, while temperatures above

3540 C should also be avoided.

The adhesive grammage depends very much on the quality o the MDF and on their absorbency,

and the data below are minimum values:

Applicationtothesurface: 5070g/mwet(2030g/mdry)

Applicationtotheedge: 80130g/mwet(3555g/mdry)

rmk:

In certain cases the application may need to be increased!

The adhesive coating on the substrate must spread easily when wiped with a nger.

After drying the lm must appear glossy.

As an added precaution, random weight checks are recommended.



Please observe!

Surfaces must be clean and dust-free

Adhesive applied to MDF conditioned to RT (> 18 C)

Edges and open proles absorb more adhesive =

2x adhesive coats

- 1t f cing th p

- allow to dry for 1-3 minutes

- ppy 2nd ct

Application depends largely on quality of MDF



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5 Processing o materials - Manuacturing process


5.1.3 Drying of the adhesive coating

Ater adhesive application the ollowing actors must be observed:

Theadhesivemustbeallowedtodrysufcientlyunderdust-freeconditions.Onlythencan

thermo-reactivation take place in the press.

Dependingonroomconditions(temperatureandhumidity),theMDFpartswillbedry

enough to go into the press ater about 30 minutes at an ambient climate(approx. 20 C and 50 % RH).

Dryingtimescanbereducedsubstantiallyifthepre-coatedpartsarepassedthrougha

hot air tunnel.

Whendryinginahotairtunnel,followedbystorage,thesurfacetemperaturemaynot

exceed 40 C to prevent premature or accelerated crosslinking o the adhesive.

Themajorfactorforfastdryingistheairow(volume)andnotthetemperature.

This applies to the reactive two-component as well as or the single-component

reactive PU dispersions.

Afterdryinginahotairchannel,immediateprocessing/laminatinginthepressisnecessary

or the reactive dispersion adhesives.



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Please observe!

Sufcient drying under dust-free conditions

Furniture fronts with glue applied are ready for

pressing after about 30 minutes (at approx. 20 C/

50 % RH) depending on ambient climate

Reduction of drying time using hot air channel In case of drying in hot air channel followed by

storage, the surface temperature should not

exceed 40 C

Air volume (ow) is important, not the actual

tmptu

After channel drying, nishing (lamination) without

dy

Long waiting times before lamination must be

avoided

Afterdryinginahotairtunnel,immediateprocessing/laminatinginthepressis

necessary or the reactive dispersion adhesives.

Extendedwaitingtimesafterdryingmustbeavoided

Remarks: The recommendations of the adhesive manufacturer must be observed



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5 Processing o the materials - Manuacturing process


5.2 Pressing

5.2.1 Press systems / parameters

Below the specic characteristics o the various press systems ound in the eld are outlined.

Speciccharacteristicsofpresseswithmembranes:

- The membrane serves as a medium or the transerral o heat.

- The oil is ormed over the component to be laminated by applying a vacuumand pressure onto the membrane.

Specicpropertiesofpresseswithoutmembrane:

- The heat is transerred directly rom the hot platen to the oil.

- The oil is ormed over the component to be laminated exclusively by vacuum

and pressure.



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5.2.2 Preparing the pressing cycle

The ollowing parameters must be checked beore processing:

Typeoffoil(rawmaterialsbasis,structure,condition)

Foilthickness

Colourandtypeofsurface(e.g.standardorhighgloss)

Adjustthepressparametersunderconsiderationoftypeoffoilandroutingdesign

o the parts

Conditionofthegluedcomponents(adequateventilationandmaintenanceoftimelimits

or adhesive application, parts temperature and drying time).

5.2.3 The laminating process

Laminating is carried out in two steps:

Step 1: Preheating

Step 2: 3D orming

5.2.4 Temperature of the heating platens and/or membrane

The setting depends on the oil type.



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5.2.5 Preheating time and procedure

Thefoilisheatedbyliftinguptotheupperheatingplatenormembrane(contactheat).

Thetemperaturemustbeappliedtotheentiresurfaceofthefoil(observeforfullcontact).

Duetoradiatedheat,thetemperatureleveloftheworkpiecesmayalsoberaised.

Preheatingofthefoilcanalsobeachievedbyheatradiation.

Preheatingofthefoildependsonthetemperatureoftheheatingplatensormembrane

and the preheating time.

Thepreheatingtimemustbeadjustedtoaccuratelymatchtheactivationtemperature

in the glue line as recommended by the adhesive manuacturer or the respective

PU adhesive.

Thegluelinetemperaturedependsonthetemperaturesettingoftheheatingplatensoro the membrane (surace temperature o the oil) and on the preheating time.

Therequiredminimumactivationtemperaturevariesbyadhesiveandusuallyisapprox.

5580 C (temperature in the glue line).

Toachieveoptimumresults,theminimumactivationtemperatureintheglueline

must be clearly exceeded at a pressure o at least 3 bar.

rmkUsing a suitable measuring method (temperature strips, contact reading equipment,

T-proler etc.) the surface temperature of the foil respectively the glue line at the

edges and at the surface should be monitored and documented with the other process

pmt.

If the surface or glue line temperatures are insufcient, the machine parameters

(e. g. preheating time, press time, pressure, heating platen/membrane temperature) must

be optimized accordingly.



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5.2.6 3D forming

Thefoilisformedbyvacuumfrombelowandpressurefromabove.

Whenthevacuumisbuiltup,thefoilcanbeseparatedfromtheheatingplatens,

directly or delayed, in order to reduce the air volume already beore pressing.

The3D-formingissubjecttothefactorsvacuumtime,pressureandpressingtime.

Thesettingoftheseparametersdependonthefoilusedandthedesignoftheparts.

Whenpressureisapplied,theminimumrequirementsoftheadhesivemanufacturer

must be observed.

Thepressingtimehastobeadjustedinsuchawaythatattheendofthepressingtime,

the temperature o the glueline is well below the activation temperature o the adhesive.

Apart rom the major parameters listed here, there are also additional parameters whichmay apply or special applications. These parameters are listed in the manuals o the individual

press manuacturers; or the respective inormation, please contact the individual engineering

companies.

Please observe!

Set preheating time accurately to reach activation temperature in

the glue line as recommended for the adhesive in use

Ensure full contact between foil and heat source

Press parameters depend on foils and design of the work pieces

Observe minimum requirements of the adhesive manufacturer

while applying pressure

Set pressing time to ensure that glue line temperature at the end

of the pressing time is below the activation temperature of the

adhesive



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5.2.7 Cutting and trimming

Attheendofthepressingprocessandopeningofthepress,thepressedpartsarecutout

o the oil (individually) while still warm and lited o the press table, leaving an overhang o

oil o several centimetres around each piece.

Whenthefoilistrimmedoffimmediatelyafterpressing(manuallyorautomatically)

this should only be done when the adhesive has sucient cohesion/strength).

Asharptoolmustbeusedtopreventmechanicalseparationofthefoilfromtheadhesive

while trimming. The oil excess is cut o in a clean drawn blade movement against the

glue line.

Theadhesionofthefoilshouldbecheckedatregularintervalsbyapeeltestand

documented. This is done by cutting a triangular piece o oil rom the surace to

the edge, then peeling it o and checking its strength characteristics.

Ideally,thepartsshouldbetrimmedonlywhencooleddowntoroomtemperature.

Thefrontpiecesshouldbestoredfor3daysatroomtemperaturebeforebeingreleased

or shipping.





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5.2.8 Crosslinking time

Finalcrosslinkingforthetwo-componentaswellasthesingle-componentreactive

PU dispersion adhesives is only reached ater about 7 days.

Dependingontheadhesive,typeoffoil,foilthickness,designandshapeoftheMDF

part and test method used, i all the recommendations previously mentioned are observed it

is possible to achieve heat resistance values o between 80 and 100 C.

5 Processing o the materials - manuacturing process



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additive auxiliary agent

dhin adhesive orce between contact suraces o two materials

ppictin pc process or method o application/coating

gu in layer between bonded materials

cgutin agglomeration, lumping o the adhesive

cnditining storage until weight is balanced (constant weight) by water

absorption in normal climate

cink component or PU dispersion to increase adhesiondg f g measurable value o surace gloss

ller auxiliary in ormulation

hard PVC foil PVC plastic oil with low percentage o/without plasticizer

ht ptn structural component in the thermoorming press developing

ht itnc measure o bond stability when exposed to heat

hmgnity perect mix o dierent substrates

hydphing gnt water-repellent agent

MDF/MDF panel medium density breboard

htmim distinction o equal colours under dierent light

inhmgnity uneven mix o various substancesnormal climate (23C + 50% LF) dened conditions temperature/humidity

pcity transparency o materials

p tngth bond strength between dierent layers

pim base coating or adhesion promoter

pttyp original, rst or standard sample

PU dispersion = PUD water-based polyurethane dispersion adhesive

PVC = polyvinylchloride amorphous, thermoplastic synthetic material

relative humidity (RH) amount o water vapour in the air at the respective temperature

room/ambient climate room climate determined by humidity, air temperature, plus

surace temperature o the walls

ptin segregation, substances splitting apart

specication description o a product with dened characteristics

stabilizer auxiliary providing stability o chemical compounds

thmptic mti plastic which, over a certain temperature range, can undergo

deormation

T-proler temperature reading device especially or thermoorm presses

transverse tensile strength tensile strength across supercial thermal expansion

wood moisture percentage o water in wood cells related to dry wood mass

6 Glossary




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Dicim:

The inormation contained in this Quality Guide has been compiled to the best o our knowledge

and based on practical experience. It refects the actual state o the art.

It does not represent any guarantee o properties and does not iner any liability on our part.

The processor must test the products or suitability beore using and processing in his actory.

We reserve the right to improve the material properties and processing parameters.

Any use o the products or other base materials and or other areas o application diering rom

those listed above must be tested in each case and their suitability must be agreed upon prior to

use with the individual supplier/manuacturer.

The recommendations or instructions concerning transport and storage o the materials,

including those concerning mixing and processing, as provided by the respective manuacturers

o the materials, technologies and services, must absolutely be observed.

We are not liable or completeness and accuracy o the contents.

Our thanks go to all partner companies who lent their support in compiling this Quality Guide.

Issue 01/2009

7 Legal inormation




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RESPONSIBLE FOR THE CONTENTS

Contents: Initiativkreis 3D

Publisher: Industrieverband Kunststobahnen e.V.

Emil-von-Behring-Strae4

60439 Frankurt

Industrieverband Klebstoe e.V.

VlklingerStrae4

40219 Dsseldor

Redaktion: Gnter Roth, Konrad Hornschuch AG



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adOffice CapleTraders,6,7,8KediaChambers,Opp.OldPoliceStation,NearNewEraTheatre,S.V.Road,Malad(W),Mumbai4000Tel:02228825542,28894090,28898531|Fax:02228899725|Email:[email protected] |Website:www.caple.in

moCentreCapleTraders,Navdurga,ShahArcadeBuildingNo.8,NearRaniSatiFlyover,W.E.Highway,Malad(E),Mumbai 400097.Tel:+912228803584,28803586|Fax:+912228441071|Email:[email protected] |Website:www.caple.in

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E mail: contact@caple in Mobile: (91) 99200 71716
http://www.caple.in/contact.htmlhttp://www.caple.in/contact.htmlhttp://www.caple.in/contact.htmlhttp://www.caple.in/contact.html

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3D Door Manufacture