13
TECHNICAL INFORMATION AND REFERENCE rpm mechanical inc. 1-888-842-5668 www.rpmmechanical.com TECHNICAL INFORMATION AND REFERENCE 71 EXAMPLE: 2BA610 A14 C12 L14 While not a part of the specification itself, the following chart presents the assigned Classification System for Elastomeric Materials material prefix letters and the polymer such prefix would normally call out. This is the conversion equivalent applicable under: D-2000 and J-200 D-735 and J-14 AA — Natural, SBR, Butyl, Isoprene . . . . . . . . . . . . . . . . . . . . . . . . .R AK — Polysulphide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SA BA — Ethylene-Propylene, Heat Resistant SBR and Butyl . . . . . . . . . .BC — Chloroprene-Neoprene . . . . . . . . . . . . . . . . . . . . . . . . . . . .SC BE — Chloroprene-Neoprene (lower oil swell and comp. set) . . . . . . .BF — Nitrile — E14-E34 Requirements . . . . . . . . . . . . . . . . . . . . . .BG — Nitrile — E51-E61 Requirements . . . . . . . . . . . . . . . . . . . . .SB BK — Organic Dihalide (Thiokol) . . . . . . . . . . . . . . . . . . . . . . . . .SA CA — Ethylene-Propylene . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .CE — Chlorosulfanated Polyethylene (Hypalon) . . . . . . . . . . . . . . . .CH — Nitrile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .DF — Polyacrilic (Butyl-Acrylate Type) . . . . . . . . . . . . . . . . . . . . . .DH — Polyacrilic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .TB FC — Silicone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .TA FE — Silicone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .FK — Fluorinated Silicone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1ST DESIGNATE (2) Grade number — used to designate supplemental requirements beyond the basic call out. Your supplier can develop this. 2ND DESIGNATE (B) Indicative of heat resistant requirements at which polymer shall be tested. BASIC REQUIREMENTS FOR ESTABLISHING TYPE BY TEMPERATURE Test Temperature Type °C °F A 70 158 B 100 212 C 125 257 D 150 302 E 175 347 F 200 392 G 225 437 H 250 482 J 275 527 3RD DESIGNATE (A) Indicative of degree of oil resistance as measured by volume swell under test procedures. BASIC REQUIREMENTS FOR ESTABLISHING CLASS BY VOLUME SWELL Class Volume Swell, Max. % A No requirement B 140 C 120 D 100 E 80 F 60 G 40 H 30 J 20 K 10 4TH DESIGNATE (6) Indicative of hardness required, as 60 ± 5 Shore “A”.

TECHNICAL INFORMATION AND REFERENCE - … · TECHNICAL INFORMATION AND REFERENCE ... (Inches) Fixed Closure (Millimeters) Fixed Closure Above - Incl. Above - Incl. COMMERCIAL DWG

Embed Size (px)

Citation preview

Page 1: TECHNICAL INFORMATION AND REFERENCE - … · TECHNICAL INFORMATION AND REFERENCE ... (Inches) Fixed Closure (Millimeters) Fixed Closure Above - Incl. Above - Incl. COMMERCIAL DWG

TECHNICAL INFORMATION AND REFERENCE

rpm mechanical inc. 1-888-842-5668 www.rpmmechanical.com

TE

CH

NIC

AL IN

FOR

MA

TIO

N A

ND

RE

FER

EN

CE

71

EXAMPLE: 2BA610 A14 C12 L14While not a part of the specification itself,the following chart presents the assigned

Classification System for Elastomeric Materials

material prefix letters and the polymer suchprefix would normally call out. This is theconversion equivalent applicable under:

D-2000 and J-200 D-735 and J-14

AA — Natural, SBR, Butyl, Isoprene . . . . . . . . . . . . . . . . . . . . . . . . .RAK — Polysulphide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SABA — Ethylene-Propylene, Heat Resistant SBR and Butyl . . . . . . . . . .—BC — Chloroprene-Neoprene . . . . . . . . . . . . . . . . . . . . . . . . . . . .SCBE — Chloroprene-Neoprene (lower oil swell and comp. set) . . . . . . .—BF — Nitrile — E14-E34 Requirements . . . . . . . . . . . . . . . . . . . . . .—BG — Nitrile — E51-E61 Requirements . . . . . . . . . . . . . . . . . . . . .SBBK — Organic Dihalide (Thiokol) . . . . . . . . . . . . . . . . . . . . . . . . .SACA — Ethylene-Propylene . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .—CE — Chlorosulfanated Polyethylene (Hypalon) . . . . . . . . . . . . . . . .—CH — Nitrile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .—DF — Polyacrilic (Butyl-Acrylate Type) . . . . . . . . . . . . . . . . . . . . . .—DH — Polyacrilic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .TBFC — Silicone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .TAFE — Silicone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .—FK — Fluorinated Silicone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .—

1ST DESIGNATE (2)Grade number — used to designatesupplemental requirements beyond the basiccall out. Your supplier can develop this.

2ND DESIGNATE (B)Indicative of heat resistant requirements atwhich polymer shall be tested.

BASIC REQUIREMENTS FOR ESTABLISHINGTYPE BY TEMPERATURE

Test TemperatureType °C °F

A 70 158B 100 212C 125 257D 150 302E 175 347F 200 392G 225 437H 250 482J 275 527

3RD DESIGNATE (A)Indicative of degree of oil resistance asmeasured by volume swell under testprocedures.

BASIC REQUIREMENTS FOR ESTABLISHINGCLASS BY VOLUME SWELL

Class Volume Swell, Max. %

A No requirement B 140 C 120 D 100 E 80 F 60G 40H 30J 20K 10

4TH DESIGNATE (6)Indicative of hardness required, as 60 ± 5Shore “A”.

Page 2: TECHNICAL INFORMATION AND REFERENCE - … · TECHNICAL INFORMATION AND REFERENCE ... (Inches) Fixed Closure (Millimeters) Fixed Closure Above - Incl. Above - Incl. COMMERCIAL DWG

TECHNICAL INFORMATION AND REFERENCE

rpm mechanical inc. 1-888-842-5668 www.rpmmechanical.com

TE

CH

NIC

AL

INFO

RM

AT

ION

AN

D R

EFE

RE

NC

E

72

5TH AND 6TH DESIGNATE (1 & 0)Indicative of tensile strength required, as1,000 PSI written in hundreds of PSI.

7TH DESIGNATEThe suffix letters (A, C, L) indicatesupplemental requirements for particularapplications that set up more rigid testprocedures — beyond the basic call out.

MEANING OF SUFFIX LETTERS

Suffix Test Required

A Heat Resistance B Compression Set C Ozone or Weather Resistance D Compression Deflection

Resistance E Fluid Resistance F Low Temperature Resistance G Tear Resistance H Flex Resistance J Abrasion ResistanceK AdhesionL Water ResistanceM Flammability ResistanceN Impact ResistanceP Staining ResistanceR ResilienceZ Any special requirement to be

specified in detail

8TH DESIGNATEThe suffix numbers (14, 12, 14) indicate theASTM test method applicable by the firstdigit.

9TH DESIGNATEThe suffix numbers, (in this case 14, 12, 14)the second digit denotes the temperature atwhich the test shall be conducted.

FOR SUFFIX LETTERS: A, B, C, E, G, K, L

1 = 73 Deg. F. 2 = 100 Deg. F. 3 = 158 Deg. F. 4 = 212 Deg. F.5 = 257 Deg. F. 6 = 302 Deg. F.

FOR SUFFIX LETTER: K

4 = Zero Deg. F.5 = Minus 13 Deg. F.6 = Minus 31 Deg. F.7 = Minus 40 Deg. F.8 = Minus 58 Deg. F.9 = Minus 67 Deg. F.

10 = Minus 85 Deg. F.11 = Minus 103 Deg. F.

Page 3: TECHNICAL INFORMATION AND REFERENCE - … · TECHNICAL INFORMATION AND REFERENCE ... (Inches) Fixed Closure (Millimeters) Fixed Closure Above - Incl. Above - Incl. COMMERCIAL DWG

TECHNICAL INFORMATION AND REFERENCE

rpm mechanical inc. 1-888-842-5668 www.rpmmechanical.com

TE

CH

NIC

AL IN

FOR

MA

TIO

N A

ND

RE

FER

EN

CE

73

Tolerance Tables

Cross Sectional Tolerances for Group 1 — Compounds Only

Dimension Dimension Dimension(Inches) Tolerance (Inches) (Millimeters) Tolerance

Above - Incl. (Fractions) Above - Incl.

HIGH PRECISIONRMA — CLASS A — DWG DESIGNATION A

0.00 - 0.10* ±.008 (0 - 3/32) 0.0 - 2.5* ±0.200.10 - 0.16 0.010 (3/32 - 5/32) 2.5 - 4.0 0.250.16 - 0.25 0.013 (5/32 - 1/4) 4.0 - 6.3 0.320.25 - 0.40 0.016 (1/4 - 13/32) 6.3 - 10.0 0.400.40 - 0.63 0.020 (13/32 - 5/8) 10.0 - 16.0 0.500.63 - 1.00 0.025 (5/8 - 1) 16.0 - 25.0 0.63

Use ± 2-1/4% for dimensions over 1.00 inch

PRECISIONRMA — CLASS 1 — DWG DESIGNATION A1

0.00 - 0.10* ±.010 (0 - 3/32) 0.0 - 2.5* ±0.250.10 - 0.16 0.013 (3/32 - 5/32) 2.5 - 4.0 0.320.16 - 0.25 0.016 (5/32 - 1/4) 4.0 - 6.3 0.400.25 - 0.40 0.020 (1/4 - 13/32) 6.3 - 10.0 0.500.40 - 0.63 0.025 (13/32 - 5/8) 10.0 - 16.0 0.630.63 - 1.00 0.032 (5/8 - 1) 16.0 - 25.0 0.80

Use ± 2-3/4% for dimensions over 1.00 inch

COMMERCIALRMA — CLASS 2 — DWG DESIGNATION A2

0.00 - 0.10* ±.013 (0 - 3/32) 0.0 - 2.5* ±0.320.10 - 0.16 0.016 (3/32 - 5/32) 2.5 - 4.0 0.400.16 - 0.25 0.020 (5/32 - 1/4) 4.0 - 6.3 0.500.25 - 0.40 0.025 (1/4 - 13/32) 6.3 - 10.0 0.630.40 - 0.63 0.032 (13/32 - 5/8) 10.0 - 16.0 0.800.63 - 1.00 0.040 (5/8 - 1) 16.0 - 25.0 1.00

Use ± 3-1/2% for dimensions over 1.00 inch

NON-CRITICALRMA — CLASS 3 — DWG DESIGNATION A3

0.00 - 0.10* ±.016 (0 - 3/32) 0.0 - 2.5* ±0.400.10 - 0.16 0.020 (3/32 - 5/32) 2.5 - 4.0 0.500.16 - 0.25 0.025 (5/32 - 1/4) 4.0 - 6.3 0.630.25 - 0.40 0.032 (1/4 - 13/32) 6.3 - 10.0 0.800.40 - 0.63 0.040 (13/32 - 5/8) 10.0 - 16.0 1.000.63 - 1.00 0.050 (5/8 - 1) 16.0 - 25.0 1.25

Use ± 4-1/2% for dimensions over 1.00 inch

*General cross-sectional dimensions below 0.040" (1 mm) are impractical.

Page 4: TECHNICAL INFORMATION AND REFERENCE - … · TECHNICAL INFORMATION AND REFERENCE ... (Inches) Fixed Closure (Millimeters) Fixed Closure Above - Incl. Above - Incl. COMMERCIAL DWG

TECHNICAL INFORMATION AND REFERENCE

rpm mechanical inc. 1-888-842-5668 www.rpmmechanical.com

TE

CH

NIC

AL

INFO

RM

AT

ION

AN

D R

EFE

RE

NC

E

74

Tolerance Tables

Cross Sectional Tolerances for Group 2 — Compounds Only

Dimension Dimension Dimension(Inches) Tolerance (Inches) (Millimeters) Tolerance

Above - Incl. (Fractions) Above - Incl.

HIGH PRECISIONRMA — CLASS A — DWG DESIGNATION A

0.00 - 0.10* ±.010 (0 - 3/32) 0.0 - 2.5* ±0.250.10 - 0.16 0.013 (3/32 - 5/32) 2.5 - 4.0 0.320.16 - 0.25 0.016 (5/32 - 1/4) 4.0 - 6.3 0.400.25 - 0.40 0.020 (1/4 - 13/32) 6.3 - 10.0 0.500.40 - 0.63 0.025 (13/32 - 5/8) 10.0 - 16.0 0.630.63 - 1.00 0.032 (5/8 - 1) 16.0 - 25.0 0.80

Use ± 2-3/4% for dimensions over 1.00 inch

PRECISIONRMA — CLASS 1 — DWG DESIGNATION A1

0.00 - 0.10* ±.013 (0 - 3/32) 0.0 - 2.5* ±0.320.10 - 0.16 0.016 (3/32 - 5/32) 2.5 - 4.0 0.400.16 - 0.25 0.020 (5/32 - 1/4) 4.0 - 6.3 0.500.25 - 0.40 0.025 (1/4 - 13/32) 6.3 - 10.0 0.630.40 - 0.63 0.030 (13/32 - 5/8) 10.0 - 16.0 0.800.63 - 1.00 0.040 (5/8 - 1) 16.0 - 25.0 1.00

Use ± 3-1/2% for dimensions over 1.00 inch

COMMERCIALRMA — CLASS 2 — DWG DESIGNATION A2

0.00 - 0.10* ±.016 (0 - 3/32) 0.0 - 2.5* ±0.400.10 - 0.16 0.020 (3/32 - 5/32) 2.5 - 4.0 0.500.16 - 0.25 0.025 (5/32 - 1/4) 4.0 - 6.3 0.630.25 - 0.40 0.030 (1/4 - 13/32) 6.3 - 10.0 0.800.40 - 0.63 0.040 (13/32 - 5/8) 10.0 - 16.0 1.000.63 - 1.00 0.050 (5/8 - 1) 16.0 - 25.0 1.25

Use ± 4-1/2% for dimensions over 1.00 inch

NON-CRITICALRMA — CLASS 3 — DWG DESIGNATION A3

0.00 - 0.10* ±.020 (0 - 3/32) 0.0 - 2.5* ±0.500.10 - 0.16 0.025 (3/32 - 5/32) 2.5 - 4.0 0.630.16 - 0.25 0.030 (5/32 - 1/4) 4.0 - 6.3 0.800.25 - 0.40 0.040 (1/4 - 13/32) 6.3 - 10.0 1.000.40 - 0.63 0.050 (13/32 - 5/8) 10.0 - 16.0 1.250.63 - 1.00 0.063 (5/8 - 1) 16.0 - 25.0 1.60

Use ± 5-1/2% for dimensions over 1.00 inch

*General cross-sectional dimensions below 0.040" (1 mm) are impractical.

Page 5: TECHNICAL INFORMATION AND REFERENCE - … · TECHNICAL INFORMATION AND REFERENCE ... (Inches) Fixed Closure (Millimeters) Fixed Closure Above - Incl. Above - Incl. COMMERCIAL DWG

TECHNICAL INFORMATION AND REFERENCE

rpm mechanical inc. 1-888-842-5668 www.rpmmechanical.com

TE

CH

NIC

AL IN

FOR

MA

TIO

N A

ND

RE

FER

EN

CE

75

Tolerance Tables

Standard Dimensional Tolerance Table — Molded Rubber Products

Dimension Dimension(Inches) Fixed Closure (Millimeters) Fixed Closure

Above - Incl. Above - Incl.

HIGH PRECISIONDWG DESIGNATION A1

0 - .40 ±.004 ±.005 0 - 10 ±.10 ±.13.40 - .63 .005 .006 10 - 16 .13 .16.63 - 1.00 .006 .008 16 - 25 .16 .20

1.00 - 1.60 .008 .010 25 - 40 .20 .251.60 - 2.50 .010 .013 40 - 63 .25 .322.50 - 4.00 .013 .016 63 - 100 .32 .404.00 - 6.30 .016 .020 100 - 160 .40 .50

PRECISION

DWG DESIGNATION A2

0 - .40 ±.006 ±.008 0 - 10 ±.16 ±.20.40 - .63 .008 .010 10 - 16 .20 .25.63 - 1.00 .010 .013 16 - 25 .25 .32

1.00 - 1.60 .013 .016 25 - 40 .32 .401.60 - 2.50 .016 .020 40 - 63 .40 .502.50 - 4.00 .020 .025 63 - 100 .50 .634.00 - 6.30 .025 .032 100 - 160 .63 .80

6.30 & over — To find fixed 160 & over — To find fixeddimensional tolerances multiply by 0.4% dimensional tolerances multiply by 0.4%

Drawing Designation “A1" is the tightesttolerance classification and indicates a highprecision rubber product. Such productsrequire expensive molds, fewer cavities permold, costly in-process controls andinspection procedures. The exact method ofmeasurement should be agreed uponbetween rubber manufacturer and customer,as errors in measurement may be large inrelation to the tolerance.

Some materials, particularly those requiringpost curing, do not lend themselves toDrawing Designation “A1" tolerances.

Drawing Designation “A2" tolerancesindicate a precision product. Molds must beprecision machined and kept in good repair.Careful inspection will usually be required.

Page 6: TECHNICAL INFORMATION AND REFERENCE - … · TECHNICAL INFORMATION AND REFERENCE ... (Inches) Fixed Closure (Millimeters) Fixed Closure Above - Incl. Above - Incl. COMMERCIAL DWG

TECHNICAL INFORMATION AND REFERENCE

rpm mechanical inc. 1-888-842-5668 www.rpmmechanical.com

TE

CH

NIC

AL

INFO

RM

AT

ION

AN

D R

EFE

RE

NC

E

76

Tolerance Tables

Standard Dimensional Tolerance Table — Molded Rubber Products

Dimension Dimension(Inches) Fixed Closure (Millimeters) Fixed Closure

Above - Incl. Above - Incl.

COMMERCIALDWG DESIGNATION A3

0 - .40 ±.008 ±.013 0 - 10 ±.20 ±.32.40 - .63 .010 .016 10 - 16 .25 .40.63 - 1.00 .013 .020 16 - 25 .32 .50

1.00 - 1.60 .016 .025 25 - 40 .40 .631.60 - 2.50 .020 .032 40 - 63 .50 .802.50 - 4.00 .025 .040 63 - 100 .63 1.004.00 - 6.30 .032 .050 100 - 160 .80 1.25

6.30 & over — To find fixed 160 & over — To find fixeddimensional tolerances multiply by 0.5% dimensional tolerances multiply by 0.5%

NON-CRITICALDWG DESIGNATION A4

0 - .40 ±.013 ±.032 0 - 10 ±.32 ±.80.40 - .63 .016 .036 10 - 16 .40 .90.63 - 1.00 .020 .040 16 - 25 .50 1.00

1.00 - 1.60 .025 .045 25 - 40 .63 1.121.60 - 2.50 .032 .050 40 - 63 .80 1.252.50 - 4.00 .040 .056 63 - 100 1.00 1.404.00 - 6.30 .050 .063 100 - 160 1.25 1.60

6.30 & over — To find fixed 160 & over — To find fixeddimensional tolerances multiply by 0.8% dimensional tolerances multiply by 0.8%

Drawing Designation “A3" tolerancesindicate a ”commercial" product and willnormally be used for most products.

Drawing Designation “A4" tolerances applyto products where dimensional control is non-critical and secondary to cost.

Page 7: TECHNICAL INFORMATION AND REFERENCE - … · TECHNICAL INFORMATION AND REFERENCE ... (Inches) Fixed Closure (Millimeters) Fixed Closure Above - Incl. Above - Incl. COMMERCIAL DWG

TECHNICAL INFORMATION AND REFERENCE

rpm mechanical inc. 1-888-842-5668 www.rpmmechanical.com

TE

CH

NIC

AL IN

FOR

MA

TIO

N A

ND

RE

FER

EN

CE

77

Materials and Durometers

Material Designation BN Durometers 40 through 90*

BUNA-N (NITRILE) (NBR)The standard for most general applications:petroleum base lubricants, hydraulic oils,gasoline, fuels, alcohol, L.P. gases, waterand many other media. Temperature Range: -65 to +275° F (-55 to +135° C)* To specify compound, precede material with

Durometer. Example: 70BN

Material Designation EPDurometers 40 through 90*

ETHYLENE-PROPYLENE (EPDM)For hot water, steam, acids, alcohols, alkalis,keytones, phosphate esters, brake fluids,drive belts and exposure to oxygen, ozoneand weathering. Temperature Range: -67 to+302° F (-55 to +150° C)* To specify compound, precede material with

Durometer. Example: 70EP

Material Designation SDurometers 40 through 80*

SILICONECompatible with a variety of fluids, air,oxygen, ozone and other media for extremesof low and high temperature applications.Temperature Range: -85 to +450° F (-65 to+232° C)* To specify compound, precede material with

Durometer. Example: 70S

Material Designation CDurometers 40 through 90*

NEOPRENE (CHLOROPRENE) (CR)Recommended for refrigeration freon gases,carbon dioxide gases, chlorine, ozone,sunlight exposure and for use as drive belts.Temperature Range: -80 to +275° F (-60 to+135° C)* To specify compound, precede material with

Durometer. Example: 70C

Material Designation VDurometers 60 through 90*

FLUOROCARBONHigh temperature toughness, stability andcompatibility with a wide range of fluid andchemical types including acids, oils, fuels,solvents and gases. Temperature Range: -31to +400° F (-35 to +204° C)* To specify compound, precede material with

Durometer. Example: 75V

Material Designation FSDurometers 60 through 80*

FLUOROSILICONERecommended where extreme temperatureproperties are required. For petroleum oils,fuels and lubricants; synthetic ester anddiester lubricants. Temperature Range: -85 to+350° F (-65 to +177° C)* To specify compound, precede material with

Durometer. Example: 70FS

Material Designation TDurometer 85*

TEFLONRecommended for end-cap seals on valves,cylinders, filters, test vessels, flangedconnections, tube fittings and couplings. Willnot twist, chip, swell or shrink, and can besterilized. Temperature Range: 75° F to 400°F (60° C to 200° C)* To specify compound, precede material with

Durometer. Example: 85T

Page 8: TECHNICAL INFORMATION AND REFERENCE - … · TECHNICAL INFORMATION AND REFERENCE ... (Inches) Fixed Closure (Millimeters) Fixed Closure Above - Incl. Above - Incl. COMMERCIAL DWG

TECHNICAL INFORMATION AND REFERENCE

rpm mechanical inc. 1-888-842-5668 www.rpmmechanical.com

TE

CH

NIC

AL

INFO

RM

AT

ION

AN

D R

EFE

RE

NC

E

78

Fluid Compatibility

Acetaldehyde U U R U R UAcetamide R U R R M UAcetic Acid M M R R R UAcetone U M R M M UAcetophenone U U R U U UAcetylene R R R R R RAmmonia R R R R R UAmmonium Hydroxide R R R R R RAmyl Acetate U U M U U UAnderol L-774 M U U U U RAntifreeze R R R R R RAniline U U R U U MAroclors M U R U M RAskarel R U U U U RASTM #1 R U U R R RASTM #3 R U U U U RASTM Fuel A R U U R U RASTM Fuel B R U U U U RASTM Fuel C R U U U U RASTM Fuel D M U U U U RAuto Transmission Fluid R U U M M RBeer R R R R R RBenzaldehyde U U R U U UBenzene U U U U U RBenzine R U U R U RBenzoic Acid U U U U U RBenzophenone U U R X U RBenzyl Alcohol U U R R X RBleach R R R R U RBorax R R R U R RBoric Acid R R R R R RBrake Fluid (non-petro.) U R R R R UBromine U U U U U R

Fluid

Fluo

roel

asto

mer

Silic

one

Neop

rene

EPDM

Nitri

le

SBR

Bromobenzene U U U U U RBunker Oil R U U U U RButane R M U R U RButter R U M R R RButyl Acetate U U U U U UButyl Alcohol R R R R R RButyl Amine M U U U R UButyl Carbitol U U R M U MButyl Cellosolve M U R M X UButyraidehyde U U R U U UCarbitol R R R R R RCarbitol Acetate U U U U U RCarbon Disulfide U U U U U RCarbon Tetrachloride R U U U U RCarbonic Acid R R R R R RCastor Oil R R R R R RCellosolve U R U U U UChassis Grease R U U M U RChloracetic Acid U U R U X UChloracetone U U R M U RChlordane R U U M U RChlorine U U R U X RChlorobenzol U U U U U RChloroform U U U U U RChlorosulfonic Acid U U U U U UChrome Plating Solution U U R U R RChromic Acid U U X U M RCitric Acid R R R R R RCod Liver Oil R U U R R RCoffee R R R R R RCorn Oil R U U U R RCreosote R U U R U RCreosote Oil R U U M M R

Fluid

Fluo

roel

asto

mer

Silic

one

Neop

rene

EPDM

Nitri

le

SBR

The recommendations shown in this table arebased on data supplied by polymermanufacturers, and comparison made withsimilar materials. These are general guidelinesonly and users must conduct their ownfunctional tests to determine the suitability ofany compound for their particular application.

To aid in your selection, materials are rankedin order of increasing cost with Nitrilescosting the least and Fluoroelastomerscosting the most.

Increasing CostR = Recommended M = Marginal U = Unsatisfactory X = Insufficient Data

Page 9: TECHNICAL INFORMATION AND REFERENCE - … · TECHNICAL INFORMATION AND REFERENCE ... (Inches) Fixed Closure (Millimeters) Fixed Closure Above - Incl. Above - Incl. COMMERCIAL DWG

TECHNICAL INFORMATION AND REFERENCE

rpm mechanical inc. 1-888-842-5668 www.rpmmechanical.com

TE

CH

NIC

AL IN

FOR

MA

TIO

N A

ND

RE

FER

EN

CE

79

Fluid Compatibility

Creosylic Acid U U U U U RCrude Oil R U U U U RCyclohexane R U U M U RCyclohexanol R U U R U RDecalin U U U U U RDenatured Alcohol R R R R R RDiacetone U U R U U UDibutyl Amine U U U M U UDibutyl Phthalate U U R U X MDichloro Aniline U U U U U MDichloro Butane R U U U U RDiesel Oil R U U M U RDiethylamine R R R R R UDiethyl Benzene M U U U X RDiethylene Glycol R R R R R RDimethyl Ether U U U M U UDimethyl Formamide U X R X R UDimethyl Phthalate U U R U X RDimethyl Terephthalate U U U U U RDioctyl Phthalate U U R U M RDioxane U U R U U UDiphenyl U U U U U RDow Corning 550 R R R R R RDow Gard R R R R R RDowtherm A & E U U U U U RElco 28 R U U M R REpoxy Resins X X R R X UEthane R U U R U REthanol R R R R R REthanolamine R R R R R UEther M U M U U UEthyl Acetate U U R U R UEtnyl Benzene U U U U U REthyl Cellulose R R R R R UEthyl Chloride R R R R U REthly Ether M U M U U UEthyl Formate U U R R X REthyl Hexanol M R R R X REthyl Merlaptan U U X M M REthylene Chloride U U U U U REthylene Oxide U U R U U UFormaldehyde M M R M R UFormic Acid M R R R M UFreon 12 R R R R U R

Fluid

Fluo

roel

asto

mer

Silic

one

Neop

rene

EPDM

Nitri

le

SBR

Fuel Oil R U U R U RFufuryl Alcohol U U R U U XFuran U U X U X XFurfural U U R U U UFyrquel U U R U R RGallic Acid R R R R X RGasoline R U U U U RGelatin R R R R R RGlucose R R R R R RGlycerine R R R R R RHeptane R U U R U RHexaldehyde U U R R R UHexane R U U R U RHexanol R R M R R RHome Heating Oil R U U M R RHydrazine R R R R R XHydrochloric Acid R M R R U RHydrocyanic Acid R R R R M RHydrogen Peroxide R R R R R RHydrogen Sulfide U U R R M UHydroquinone M U U U X RHypoid Gear Lube R U U M M RIodine R R R U X RIsocyanate X X X X X RIso Octane R U U R U RIsopar R X U R U RIso Phorone U U R U U UIsopropanol R R R R R RIsopropyl Acetate U U R U U UJP-4 (MIL-J-5624) R U U U U RJP-5 (MIL-J-5624) R U U U U RKerosine R U U R U RLacquers U U U U U ULactic Acid R R R R X RLard R U R R R RLinoleic Acid R U U R R RLinseed Oil R U M M R RLye Solutions R R R R R RMalathion R U U X U RMaleic Acid U U U U X RMercury R R R R X RMeter-Cresol U U U R U RMethacrylic Acid U U R R U MMethane R U U R U R

Fluid

Fluo

roel

asto

mer

Silic

one

Neop

rene

EPDM

Nitri

le

SBR

Increasing CostR = Recommended M = Marginal U = Unsatisfactory X = Insufficient Data

Page 10: TECHNICAL INFORMATION AND REFERENCE - … · TECHNICAL INFORMATION AND REFERENCE ... (Inches) Fixed Closure (Millimeters) Fixed Closure Above - Incl. Above - Incl. COMMERCIAL DWG

TECHNICAL INFORMATION AND REFERENCE

rpm mechanical inc. 1-888-842-5668 www.rpmmechanical.com

TE

CH

NIC

AL

INFO

RM

AT

ION

AN

D R

EFE

RE

NC

E

80

Fluid Compatibility

Methanol R R R R R UMethyl Acetate U U R R U UMethyl Cellosolve M U R M U UMethylene Chloride U U U U U RMethyl Ethyl Ketone U U R U U UMethyl Mercaptan X X R X X XMilk R R R R R RMineral Oil R U M R R RMineral Spirits R U U U U RMonovinyl Acetylene R R R R R RMustard X R R X R RNaphtha R U U U U RNaphthalene U U U U U RNaphthenic Acid R U U U U RNatural Gas R R U R R RNeatsfoot Oil R U R U R RNitric Acid U M R U U MNitrobenzene U U U U U RNitropropane U U R U U UOctane R U U U U ROctanol R R R R R ROleic Acid M U U M U ROleum R U U M U ROronite 8200 R U U R U ROxalic Acid R R R R R RPeanut Oil R U M M R RPentane R M U R U RPerchlorethylene R U U U U RPetroleum Ether U U U U U RPhenol U U U U U RPhenylhydrazine U M U U X RPhosphoric Acid R R R R R RPine Oil R U U U U RPotassium Hydroxide R R R R M UPropane R U U R U RPropanol R R R R R RPropyl Acetate U U R U U UPydraul U U R U U R

Fluid

Fluo

roel

asto

mer

Silic

one

Neop

rene

EPDM

Nitri

le

SBR

Pyranol R U U R U RPyridine U R U U U URapeseed Oil R U R R U RResurcinol X R R X X XSAE10W30 R U U M R RSeawater R R R R R XSilicone Grease R R R R R RSilver Nitrate R R R R R RSkelly Solvent R U U U X RSkydrol U U R U U RSkydrol 500 U U R U U USodium Hydroxide R R R R U RSovasol R U U R R RSoy Bean Oil R U M M R XStearic Acid R R R R X XStoddard Solvent R U U R R RSucrose R R R R U USulfuric Acid R R R R R UTall Oil R U U M R UTannic Acid R R R R U XTar R U U M U XTartaric Acid R R R R X XTetrachloro Ethane U U U U U UTetralin U U U U U UTidewater Oil R U U R R RToluene U U U U U UTrichloro Ethylene M U U U U UTriethanol Amine M R R R U UTurbine Oil R U U U R RTurpentine R U U U R UUCDN 50HB280X R R R R X XUnivis J-43 R U U R R RVarnish R U U U U MVinegar R R R R U UWater R R R R U UWheat Germ Oil R U U M R RWhiskey & Wine R R R R U UWood Oil R U U R X M

Fluid

Fluo

roel

asto

mer

Silic

one

Neop

rene

EPDM

Nitri

le

SBR

Increasing CostR = Recommended M = Marginal U = Unsatisfactory X = Insufficient Data

Page 11: TECHNICAL INFORMATION AND REFERENCE - … · TECHNICAL INFORMATION AND REFERENCE ... (Inches) Fixed Closure (Millimeters) Fixed Closure Above - Incl. Above - Incl. COMMERCIAL DWG

TECHNICAL INFORMATION AND REFERENCE

rpm mechanical inc. 1-888-842-5668 www.rpmmechanical.com

TE

CH

NIC

AL IN

FOR

MA

TIO

N A

ND

RE

FER

EN

CE

81

Comparison of Properties

Ozone resistance P P GE E E E EWeather resistance F F E E E E EHeat resistance G FG G E E E EChemical resistance FG FG FG E E E GEOil resistance E P FG P E G PGImpermeability G F G G G P PCold resistance G G FG G FP GE ETear resistance FG FG FG G F P P

Property

Fluo

roca

rbon

Silic

one

Neop

rene

Ethy

lene

Pro

pyle

ne

Nitri

le

SBR

Fluo

rosi

licon

e

Abrasion resistance G G G G G P PSet resistance GE G F G GE GE GEDynamic properties GE G F G GE P PAcid resistance F F FG G E FG FGTensile strength GE GE G G GE F PElectrical properties F G F G F E EWater/Steam resistance FG FG F E FG F FFlame resistance P P G P E G F

Property

Fluo

roca

rbon

Silic

one

Neop

rene

Ethy

lene

Pro

pyle

ne

Nitri

le

SBR

Fluo

rosi

licon

e

This chart matches the general rubberproperties required in most applications withthe capabilities of commonly usedelastomers. Since no one elastomer is rated“excellent” for all properties, compromises

are sometimes necessary when selecting anelastomer for a specific application. Startwith the most critical properties to narrowyour choices.

E = Excellent G = Good F = Fair P = Poor

Page 12: TECHNICAL INFORMATION AND REFERENCE - … · TECHNICAL INFORMATION AND REFERENCE ... (Inches) Fixed Closure (Millimeters) Fixed Closure Above - Incl. Above - Incl. COMMERCIAL DWG

TECHNICAL INFORMATION AND REFERENCE

rpm mechanical inc. 1-888-842-5668 www.rpmmechanical.com

TE

CH

NIC

AL

INFO

RM

AT

ION

AN

D R

EFE

RE

NC

E

82

Temperature Range

The temperature range for any compound isdetermined by the base elastomer used. Thischart depicts the maximum temperaturerange for each elastomer. The temperature

range for a specific compound may notreach these maximum limits. Highertemperatures may be considered if exposureis short term or intermittent.

250

200

150

100

50

0

-50

482

392

302

212

122

32

-58

Deg

rees

Cel

sius

NIT

RIL

E

NE

OP

RE

NE

ET

HY

LEN

E P

RO

PY

LEN

E

FLU

OR

OC

AR

BO

N

SIL

ICO

NE

FLU

RO

SIL

ICO

NE

ST

YR

EN

EB

UTA

DIE

NE

PO

LYC

RY

LAT

E

-65˚C-85˚F

-54˚C-65˚F

Deg

rees

Fah

renh

eit

-35˚C-31˚F

-55˚C-67˚F

-18˚C-0˚F

135˚C275˚F

149˚C300˚F

204˚C400˚F

232˚C450˚F

177˚C350˚F

177˚C350˚F

107˚C225˚F

Page 13: TECHNICAL INFORMATION AND REFERENCE - … · TECHNICAL INFORMATION AND REFERENCE ... (Inches) Fixed Closure (Millimeters) Fixed Closure Above - Incl. Above - Incl. COMMERCIAL DWG

TECHNICAL INFORMATION AND REFERENCE

rpm mechanical inc. 1-888-842-5668 www.rpmmechanical.com

TE

CH

NIC

AL IN

FOR

MA

TIO

N A

ND

RE

FER

EN

CE

83

Durometer

The hardness of rubber compounds ismeasured by the Shore A durometer; thehigher the durometer number, the harder thecompound, 70-durometer hardness should beused wherever possible as it offers the bestcombination of properties for most O-Ringapplications. Softer compounds stretch easier

and seal better on rough surfaces. Hardercompounds offer greater abrasion resistanceand resistance to extrusion. Extrusion mustalways be considered where high pressuresare used. The proper hardness may beselected from this chart by matching the fluidpressure with the maximum extrusion gap.

90

80

70

60

.020 .030.010 .040

Maximum Gap-Inches

Flu

id P

ress

ure

- P

SI

10,000

9,000

8,000

7,000

6,000

5,000

4,000

3,000

2,000

1,000

900

800

700

600

500

400

300

100

200