Cold SBR – Carbon Black Masterbatch

Product Description

DIAPOL S980 is a non-staining Cold SBR Carbon Black Masterbatch containing 100 parts of SBR-1778 base polymer which is prepared with mixed acid emulsifier, 40 parts of N330 black, 20 parts of naphthenic oil and non-staining antiozonant stabilizer.

The main usage of DIAPOL S980 is to produce various compounds requiring a high level tensile strength.

A typical example is gaskets for water supply pipes.

Product Specifications
Description Chemical
Test Recipe
Emulsifier Mixed Acid Volatile Matter % 0.40 Comp’d MV ML-4 @100°C 59.5 DIAPOL S980 160.00 PHR.
Stabilizer Non-Staining Antiozonant Ash % 0.14 Cure @145°C x 50 min. Zinc Oxide 3.00 PHR.
Coagulant Acid Organic
Acid %
3.86 Tensile Mpa 22.5 Sulfur 1.75 PHR.
Base Polymer SBR-1778 Soap % 0.07 Elongation % 520 TBBS 1.25 PHR.
Extender Oil Naph. 20 PHR. Bound
Styrene %
23.5 300% Modulus Stearic Acid 1.00 PHR.
Carbon Black N330M 40 PHR. Carbon
Black %
24.9 Mpa 8.3 TOTAL 186.95 PHR.