High Viscosity 107 Silicone Raw Material 200000 cst is hydroxyl‑terminated polydimethylsiloxane with CAS 70131‑67‑8. This ultra‑high‑viscosity 107 silicone polymer is optimized for mold‑making silicone compound. It shows outstanding filler wetting performance. After cooperating with reinforcing fillers and cross‑linking agents, cured silicone obtains high elasticity, good tear strength and low shrinkage, widely used for craft mold, casting mold and industrial mould silicone production.

Product Detail

Product Overview

High Viscosity 107 Silicone Raw Material 200000 cst is OH‑terminated polydimethylsiloxane, also called 107 silicone rubber base polymer, CAS 70131‑67‑8. This ultra‑high‑viscosity grade is designed for condensation‑cure mold‑making silicone systems. Precisely controlled hydroxyl value and stable viscosity support predictable cross‑linking reaction. When compounded with silica fillers and proper cross‑linkers, it produces low‑shrinkage, flexible silicone moulds. Rigorous quality control guarantees stable performance for industrial batch production.

Key Features

Ultra‑high viscosity 200000 cst tailored for mold‑making silicone
Uniform reactive hydroxyl terminal groups for condensation curing
Superior wetting and dispersing capacity for reinforcing silica fillers
Cured silicone exhibits high elasticity and good tear resistance
Low curing shrinkage for accurate mold replication
Good compatibility with various silane cross‑linkers and catalysts
Low volatile content, stable batch‑to‑batch consistency

Main Applications

Condensation cure mold‑making silicone compound
Art craft reproduction silicone molds
Resin casting, gypsum pouring mold silicone
Industrial prototype and duplicate mould silicone
Two‑component RTV silicone rubber for mould application
Custom high‑elasticity condensation‑cure silicone formulations

Processing Suggestions

Carry out feeding, kneading and mixing under strictly moisture‑free environment. Combine with reinforcing fillers, cross‑linking agent and organotin catalyst. Adjust filler dosage and formula ratio according to target hardness, tear strength and shrinkage requirement. Avoid any moisture contamination in the whole production process.

Storage & Packing

Store in cool, dry and ventilated warehouse. Keep iron drum tightly sealed. Protect from moisture, high temperature and direct sunlight. Reseal drum immediately after partial material taking to prevent moisture ingress. Follow recommended storage conditions to maintain valid shelf‑life.

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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.