Zenith Industrial Rubber products

Water Proofing Membrane (EPDM)

EPDM MEMBRANE BASED ON ASTM - D4637

PROPERTIES TEST METHOD SPECIFICATION
Tolerance on Nominal Thickness,% ASTM D 412 ± 10%
Color Visual Black
Hardness ASTM D2240 65 ± 5 Sh A
Tensile Strength ( min ) ASTM D412 90 kg/cm2
Elongation at Break ( min ) ASTM D412 300%
Tear Resistance kg/cm ASTM D624
(Method C) 		30 kg/cm
Drop in physical properties - Ageing After 100C for 600 Hrs    
- Tensile Strength min. ASTM D - 412 10%
- Elongation ( % ) ASTM D - 412 30%
- Tear resistance (kg/cm) ASTM - 412 15%
- Linear dimensional change max. % ASTM D - 1204 +/- 2%
Ozone Resistance: On exposure to 100 ppm and Ozone in air 96 hrs.@ 40 C at 20 % strain ASTM D 1149 No crack
Glass transition Temperature : ASTM D - 746 -55
Resistance Water absorption, after 7 days immersion in 70° C, % change in mass ASTM D 471 4.0
Compression set, 22 Hrs. at 70°C ASTM D 395 30%
Specification No: ZRWP100/1 Rev. No.: 9.8 Rev. No.: 9.8

TECHNICAL SPECIFICATION - EPDM MEMBRANE BASED ON ASTM 6134

EPDM MEMBRANE BASED ON ASTM 6134

PROPERTIES TEST METHOD SPECIFICATION
Tolerance on Nominal Thickness,% ASTM D 412 ± 10
Color Visual Black
Hardness ASTM D2240 65 ± 5 Sh A
Tensile Strength ( min ) ASTM D412 90 kg/cm2
Elongation at Break ( min ) ASTM D412 300%
Abrasion Resistance ( max ) ASTM D5963 250 mm3
Compression Set (70° C/24 hrs) (max) ASTM D395
(Method B)		 34%
Tear Resistance (Angular) min ASTM D624
(Method C) 		30 kg/cm
Resistance to Heat Aging
- Tensile Strength min. ASTM D - 412 85 kg/cm2
- Elongation ( % ) ASTM D - 412 210
- Linear dimensional change max. % ASTM D - 1204 ± 1
- Brittleness temperature °C ASTM D 746 -45
Resistance water absorption, after 166Hrs. Immersion @ 70° C    
% change in mass ASTM D 471 4.0
Water Vapor Permeability Max. per-mills ASTM E 96 3.5
Specification No: ZRWP100/10 Rev. No: 9.8 Rev. No: 9.8

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