SCCARE 170R
SCCARE 170R is an accelerator blend recommended for EPDM rubber to give vulcanisate with very snappy cure, higher physical properties coupled with good scorch safety during processing. Blooming on surface, which is generally observed with EPDM products is totally avoided with SCCARE 170R. Maximum phr recommended is 5. 0
Mixing Cycle:
All the above rubber accelerator blends should be mixed at the last stage of mixing. It is preferred the master batch is matured for 24 hrs before adding these accelerators. Whenever applicable, sulphur can be immediately added after that. No special care is needed to mix these Accelerators.
Application:
Moulded Goods, Profiles, Hoses, Belts Etc.
Product Description SCCARE 100R
SCCARE 100R is an accelerator blend recommended for EPDM rubber to give very high tensile strength as compared to the conventional curing system used. It is also found to be very cost effective and has no detrimental effect on hot air ageing. Maximum phr recommended is 4. 0
Mixing Cycle:
All the above rubber accelerator blends should be mixed at the last stage of mixing. It is preferred the master batch is matured for 24 hrs before adding these accelerators. Whenever applicable, sulphur can be immediately added after that. No special care is needed to mix these Accelerators.
Application:
Microwave / Autoclave Cured Profiles, Moulded Goods, Gasket, Transfer Moulded Products ETC.
Formula (Comparision Sheet) :
EPDM H-511: 100, ZnO: 5, Stearic Acid: 1. 5, HAF (N330) : 80, Paraffinic Oil: 25, MBTS: 2,
MBT: 2, ZDC: 1, TMTD: 0. 5
ON NORMAL CONDITION
Accelerators: As Above
Sulphur: 1. 8
Rheumatic Test Report
Temperature d C: 160
A. Scorch Time, Ts2, Mins. : 1. 51
B. Cure Time, Tc90, Mins. : 13. 21
C. T Min. In lbs: 25. 73
D. T Max. In lbs: 113. 87
Curing Temperature d C / Time, Mins. : 160 / 14
A. Hardness (Shore A) : 70
B. Tensile Strength (KG / cm2) : 138
C. Elongation at Break (% ) : 420
Blooming Characteristic: Heavy Bloom
ACCELERATOR REPLACED BY SCCARE 100R
Accelerators: 3. 0
Sulphur: 2. 0
Rheumatic Test Report
Temperature d C: 160
A. Scorch Time, Ts2, Mins. : 1. 58
B. Cure Time, Tc90, Mins. : 14. 54
C. T Min. In lbs: 22. 66
D. T Max. In lbs: 95. 98
Curing Temperature d C / Time, Mins. : 160 / 15
A. Hardness (Shore A) : 70
B. Tensile Strength (KG / cm2) : 175
C. Elongation at Break (% ) : 420
Blooming Characteristic: No Bloom
ACCELERATOR REPLACED BY SCCARE 170R
Accelerators: 4. 0
Sulphur: 1. 8
Rheumatic Test Report
Temperature d C: 160
A. Scorch Time, Ts2, Mins. : 1. 39
B. Cure Time, Tc90, Mins. : 8. 80
C. T Min. In lbs: 23. 02
D. T Max. In lbs: 108. 93
Curing Temperature d C / Time, Mins. : 160 / 9
A. Hardness (Shore A) : 72
B. Tensile Strength (KG / cm2) : 183
C. Elongation at Break (% ) : 420
Blooming Characteristic: No Bloom