107 Silicone is hydroxyl‑terminated polydimethylsiloxane, CAS 70131‑67‑8. This condensation‑cure base polymer is optimized for gypsum cornice and plaster decorative molds. After mixing with reinforcing silica fillers, silane cross‑linker and organotin catalyst, it cross‑links into flexible silicone rubber. The finished mold presents ultra‑low linear shrinkage, excellent detail reproduction and good demolding performance, widely used for gypsum cornice, ceiling ornament, plaster relief and archit

Product Detail

Product Overview

107 Silicone is hydroxyl‑terminated polydimethylsiloxane base polymer, CAS 70131‑67‑8. This RTV‑2 condensation‑cure raw material is developed for gypsum cornice and plaster decorative mold‑making. Viscosity and hydroxyl content are strictly controlled batch‑by‑batch. When compounded with reinforcing silica fillers and curing system, it forms elastic silicone rubber with low shrinkage, ensuring high dimensional accuracy for large decorative gypsum products. Stable batch quality supports mass production of architectural ornament molds.

Key Features

Special 107 base polymer for RTV‑2 gypsum cornice and plaster decorative molds
Stable hydroxyl terminal groups for controllable condensation cross‑linking
Excellent wetting and dispersing capacity for reinforcing silica fillers
Ultra‑low linear shrinkage to guarantee pattern dimensional stability
High fidelity reproduction of delicate relief and complex decorative textures
Good elasticity and tear resistance for repeated demoulding cycles
Easy release property for gypsum and plaster casting medium
Suitable for large‑size cornice and ceiling ornament mold manufacturing
Compatible with standard silane cross‑linkers and organotin catalysts
Low volatile content, reliable batch‑to‑batch repeatability

Main Applications

Flexible RTV‑2 molds for gypsum cornice and ceiling decoration
Plaster relief, decorative line and architectural ornament casting molds
Large‑size gypsum artwork and sculpture reproduction moulds
Interior decoration plaster component production molds
Custom low‑shrinkage silicone compound for gypsum casting
Decorative building material mold formulations

Processing Suggestions

Carry out feeding, kneading and mixing operations under strictly moisture‑free workshop environment. Add reinforcing silica fillers, silane cross‑linking agent and organotin catalyst according to mold formula. Adjust filler loading to reach target hardness and mechanical performance. Prevent moisture intrusion during whole production process, moisture will trigger incomplete curing and surface sticky 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 ensures valid shelf‑life.

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107 Silicone for Gypsum Cornice Mold CAS 70131‑67‑8 Low Shrinkage RTV‑2 Condensation Cure PDMS

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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.