TROSIFOL STRUCTURAL AND SECURITY GLAZING PRODUCTS – … · The use of laminated glass in structural glazing applications has become more recog-nized and preferred as a safer choice

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STRUCTURAL GLAZING

TROSIFOL® STRUCTURAL AND SECURITY GLAZING PRODUCTS – MAKING GLASS STRONGER

The use of laminated glass in structural glazing applications has become more recog-nized and preferred as a safer choice to monolithic tempered or heat strengthened glass. This is due to the glass retention characteristic of laminated glass resulting in greatly improved post glass breakage properties providing enhanced safety. Trosifol® Structural offers two different options to meet your needs.

Jennifer Schneider

Structural & Security Glazing Segment ManagerKuraray America Inc., Wilmington / USA

Structural interlayers are stiff interlayers that increase the strength of the glass structure

by creating a coupling effect with the glass. This coupling effect increases the effective

thickness of the laminate allowing it to withstand higher loads, and will also enable the use

of thinner glass to achieve the same load strength. Structural interlayers provide superior

post breakage strength over other interlayers and are an excellent choice for applications

such as glass railings, stairs, floors, balconies, overhead glazing, minimally supported

facades, open edge glazing, large facades and curtain wall systems.

T RO S I F O L ®

S T R U C T U R A L I N T E R L AY E R S

02

Trosifol® offers the broadest portfolio of architectural interlayers, including Trosifol®

Extra Stiff and SentryGlas® ionoplast, two products designed to meet structural glazing

performance requirements.

Both interlayers are UltraClear and provide a high quality aesthetic appearance espe-

cially in combination with low iron glass.

For structural and security applications, Trosifol® Structural offers different options to best meet your needs

BULLETIN

Trosifol® Extra Stiff

n Stiff polyvinyl butyral (PVB) interlayer

n Available in rolls up to 321 cm

n Caliper 0.76 mm ( 30 mil)

n High stiffness and strength allows for thinner glass, reduced cost, and large glass designs

n Excellent edge stability

n Can be combined with other colored PVB interlayers*

n Excellent post breakage strength

n Very high clarity

SentryGlas® ionoplast interlayer

n Over 15 years of proven field performance

n Based on unique ionoplast chemistry; contains no plasctizers

n Caliper range from 0.76 mm (30 mil) to 3.04 mm (105 mils)

n Highest level of structural performance over wide range of temperatures and load durations of any interlayer

n High stiffness and strength allows for thinner glass, reduced cost and large glass designs

n Excellent sealant compatibility

n Available in clear and translucent white – Only translucent white structural interlayer with performance over wide range of

temperatures and load durations

n Rolls or sheet in widths up to 270 cm (106 inches)

n Superior edge stability – Over 17 years natural weathering

n Excellent post breakage strength over a broad range of temperatures and loads

n Very high clarity

n Miami Dade county approval for use in hurricane glazing

* As with any stiff PVB when it is combined with a standard PVB the resulting film will have higher stiff-ness than standard PVB and lower stiffness than the original stiff PVB.

Effect of temperature on structural properties

HIGHEST CLARITY OF ANY STRUCTURAL INTERLAYER

Structural interlayers from Trosifol® have the best clarity when

compared to other structural interlayers.

n No yellow tint that can be found in other interlayers

n Enhanced whiteness when combined with low iron glass

Trosifol® Extra Stiff is a typical stiff PVB product that provides full structural properties up to 30°C. SentryGlas® ionoplast interlayer

provides structural properties over a wide range of temperatures. Below are photos of post breakage strength at 21°C and at 50°C

for both Trosifol® Extra Stiff and SentryGlas® compared with standard PVB.

Standard PVB 1.52 mm Trosifol® Extra Stiff 1.52 mm SentryGlas® 0.89 mm

Trosifol® Extra Stiff 1.52 mm SentryGlas® 0.89 mm

Please find videos of the tests on our website:

http://www.trosifol.com/post-breakage

21°C (70°F) Both Trosifol® Extra Stiff and SentryGlas® (0.89 mm and 1.52 mm) can sustain a load of 400 kg for 30 minutes. Standard PVB could not even sustain a load of 100 kg.

At 50°C (131°F) only the SentryGlas® could sustain a load of 100 kg for 30 minutes

SUPERIOR EDGE STABILITY FOR OPEN EDGE APPLICATIONS

Edge stability is defined as a laminate’s resistance over time to form defects along its

edge. Edge Stability Number (ESN) is a measurement of the amount of delamination seen

at the edges of a laminate after exposure to natural weathering. The number represents

the length and depth of the delamination. The weighted system assigns higher importance

to progressively deeper defects. The higher the ESN the worse the edge stability. A lami-

nate with no defects would have an ESN of 0 (zero), and the maximum would be 2500

(equivalent to continuous defects measuring > 6.4 mm [1/4 in] around the entire perimeter).

ESN of laminatesDuration

[years]

2

17


SentryGlas®

Product Edge Stability Number[ESN]

0

0

03 BULLETIN

STRUCTURAL PROPERTIES AND COUPLING EFFECT

Relaxation modulus (G) as a function of temperature and load duration is shown in the chart below.

As temperatures and load durations increase SentryGlas® will outperform a stiff PVB like Trosifol® Extra Stiff.

10°CTemperature

20°CTemperature

30°CTemperature

40°CTemperature

50°CTemperature

60°CTemperature

70°CTemperature

80°CTemperature

Relaxation modulus G[N/mm2]

Trosifol® PVBTrosifol® Extra StiffSentryGlas®

Trosifol® PVBTrosifol® Extra StiffOther Stiff PVB SentryGlas®







Producttype

1 min 1 hour3 sec 1 day 1 month 1 year

Load duration

-80171

0.41.93.0112

0.11.50.511.6

0.11.50.23.3

0.1--2.2

--1.1

--0.5

--0.2

-19161

0.31.61.096.5

0.11.50.46.8

0.1--3.1

0.1--2.1

--1.0

--0.5

--0.2

* Measurements for Trosifol® PVB and Trosifol® Extra Stiff performed by the Fraunhofer Institute, Darmstadt, Germany

30 sec 5 days5 min 30 min 3 weeks

-95172

-2.0-115

-1.5-12.9

---3.4

---2.2

--1.2

--0.5

--0.2

-699236

8342325211

15897141

0.63.4663

0.41.7126.4

-1.68.2

--2.9

--1.3

-573225

1.6196-195

0.89.2-110

0.51.8-30.7

0.31.6-11.3

-1.53.7

--1.9

--0.8

-388206

0.83796169

0.422.460

0.21.60.69.3

0.1-0.44.2

--1.7

--0.8

--0.3

-234190

0.55.323146

0.31.60.849.7

0.21.50.44.5

0.1-0.22.8

--1.3

--0.6

--0.3

-603228

-230-206

-14-119

-1.9-36.6

-1.6-13.5

-1.54.3

--2.1

--1.0

-157178

-2.8-130

-1.6-24.7

-1.5-3.6

---2.4

--1.2

--0.6

--0.2

-502220

-122-188

-4.0-82.8

-1.6-19.4

-1.5-7.3

--2.6

--1.4

--0.6

-420217

-55-175

-2.3-66.1

-1.6-11.4

-1.5-4.9

--1.9

--1.0

--0.4

Rolls up to Jumbo 321 cm/126 in

15,30, 60 and 90 mils0.38, 0.76, 1.52 and 2.28 mm

Plasticized PVB


30 mil/0.76 mm

Lower Plasticized PVB


30 mil/0.76 mm

Lower Plasticized PVB

Sheet up to 250 cm/98 in and rolls up to 270 cm/106 in

30, 35, 60, 90, 100, 105 mil0.76, 0.89, 1.52, 2.28, 2.53 and 3.04 mm

Ionoplast chemistry/No plasticizer

Standard PVB

Post Breakage Performance at room temperature (21°C/70°F)

Post Breakage Performance at elevated temperature (50°C/122°F)

Structural Properties/Coupling effect at room temperature (21°C/70°F)

Structural Properties/Coupling effect at elevated temperature (50°C/122°F)

Clarity

Sealant compatability/Edge stability

Product offering

Calipers

Chemistry

Properties Other Stiff PVB


SentryGlas® Ionoplast

Interlayer performance comparison

*

* Not valid for Trosifol® UltraClear film

Relaxation modulus as a function of time and temperature*

04 BULLETIN

SentryGlas® ionoplast interlayer

Factors such as design temperature, load duration,

edge stability are important in deciding which inter-

layer is best for the particular glazing application.

Author: Jennifer Schneider

Structural & Security Glazing

Segment Manager

Kuraray America Inc.

HOW TO CHOOSE THE BEST INTERLAYER FOR YOUR APPLICATION

S T R U C T U R A L I N T E R L AY E R S


n Applications with design temperatures at 30°C or lower

n Interior open edge applications such as railings and balustrades

n Interior structural glazing applications such as floors, stairs, partitions

n Fully framed applications interior and exterior

n Designs requiring extended load durations over a broad range of temperatures (-20°C to 50°C)

n Applications that require the highest structural performance

n Best choice for exterior open edge applications

n Translucent white effect desired while main-taining full structural properties

05 BULLETIN

For further products of the Kuraray Group, please visit www.kuraray.com.

You can find further information on our Trosifol® products at www.trosifol.com.

Disclaimer: The information, recommendations and details given in this document have been compiled with care and to our best knowledge and belief. They do not entail an assurance of properties above and beyond the product specification. The user of our products is responsible for ensuring that the product is suitable for the intended use and conforms to all relevant regulations. Kuraray Co., Ltd. and his affiliates do not accept any guarantee or liability for any errors, inaccuracies or omissions in this document. SentryGlas® is a registered trademark of E.I. du Pont de Nemours and Company or its affiliates for its brand of interlayers. It is used under exclusive license by Kuraray and its sub-licensees. Butacite® polyvinyl butyral (PVB) thermoplastic film is sold in North & South America and the Asia Pacific region. In EMEA, Kuraray only sells Trosifol® PVB interlayers. 9/2016

[email protected] www.trosifol.com

Kuraray Co., LtdPVB Division1-1-3, OtemachiChiyoda-Ku, Tokyo, 100-8115Japan+ 81 3 6701 1508

Kuraray America, Inc.PVB DivisionWells Fargo Tower2200 Concord Pike, Ste. 1101Wilmington, DE 19803, USA+ 1 800 635 3182

Kuraray Europe GmbHPVB DivisionMülheimer Str. 2653840 Troisdorf Germany+ 49 2241 2555 220

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TROSIFOL STRUCTURAL AND SECURITY GLAZING PRODUCTS – … · The use of laminated glass in structural glazing applications has become more recog-nized and preferred as a safer choice