107 Base is hydroxyl‑terminated polydimethylsiloxane, CAS 70131‑67‑8. This high‑temperature‑resistant 107 silicone base polymer is developed for RTV‑2 tire mold silicone rubber. After compounding with heat‑resistant fillers, silane cross‑linker and organotin catalyst, it cross‑links into tough elastic silicone rubber. The finished mold delivers outstanding thermal stability, high tear strength and precise pattern replication, widely used for tire prototype molds, rubber component duplication and

Product Detail

Product Overview

107 Base is hydroxyl‑terminated polydimethylsiloxane base polymer, CAS 70131‑67‑8. This RTV‑2 condensation‑cure raw material is specially tailored for tire mold silicone rubber. Viscosity and hydroxyl content are strictly controlled batch‑by‑batch. When combined with heat‑resistant reinforcing fillers and matched curing system, it forms silicone rubber with good high‑temperature stability. Reliable batch consistency supports mass production of tire prototype molds and heavy‑duty industrial duplication molds.

Key Features

Dedicated 107 base polymer for high temperature resistant RTV‑2 tire mold silicone
Stable hydroxyl terminal groups for stable condensation cross‑linking reaction
Excellent wetting and dispersing performance for heat‑resistant reinforcing fillers
Cured silicone exhibits good high‑temperature resistance and thermal stability
High tear strength to sustain repeated demoulding under working conditions
Accurate reproduction of complex tire tread and sidewall fine textures
Low linear shrinkage to maintain dimensional precision of tire patterns
Good mechanical property under long‑term cyclic operation
Compatible with standard silane cross‑linkers and organotin catalysts
Low volatile content, reliable batch‑to‑batch repeatability

Main Applications

RTV‑2 silicone rubber base for tire prototype and tread molds
Duplication molds for rubber products and elastomer components
High‑temperature resistant industrial casting molds
Large‑size complex‑pattern industrial tooling molds
Custom heat‑resistant silicone compound for tire‑making industry
Molds enduring elevated‑temperature casting and demolding cycles

Processing Suggestions

Carry out feeding, kneading and mixing operations under strictly moisture‑free workshop environment. Add heat‑resistant reinforcing fillers, silane cross‑linking agent and organotin catalyst according to tire mold formulation. Adjust filler loading to obtain target hardness, tear strength and heat‑resistant performance. Prevent moisture ingress in the whole production process, moisture will lead to incomplete curing and surface tacky defects.

Storage & Packing

Packed in sealed 200kg iron drum. Store in cool, dry and ventilated warehouse. Keep drum tightly sealed. Protect from humidity, high temperature and direct sunlight. Reseal drum immediately after partial material discharge. Proper storage maintains polymer reactivity and guarantees valid shelf‑life.

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107 Base for Tire Mold Silicone Rubber CAS 70131-67-8 High Temperature Resistant

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Jishengya Technology

Shenzhen Jishengya Technology Co., Ltd. is located in Shenzhen, a special economic zone, and is a comprehensive technology enterprise integrating independent R&D, production and sales.