107 Silicone Rubber Base 80000 cst is high‑viscosity hydroxyl‑terminated polydimethylsiloxane. Owing to high molecular weight structure, the polymer endows cured silicone rubber with high tensile strength, good tear resistance and excellent elasticity. It reacts with cross‑linker under catalyst at room temperature. Mainly used for compounding high strength casting silicone molds for craft, statue and industrial replica production.

Product Detail

Product Overview

107 Silicone Rubber Base 80000 cst CAS 70131‑67‑8 is linear hydroxyl‑terminated polydimethylsiloxane with high viscosity. Reactive hydroxyl groups locate at molecular chain ends. After compounding with filler, cross‑linking agent and catalyst, it cures at room temperature into flexible high‑strength silicone elastomer. The high‑molecular‑weight backbone delivers superior tear strength and rebound performance, satisfying demanding requirements for reusable silicone mold production.

Key Features

Stable 80000 cst high viscosity, high molecular weight silicone base polymer
Active hydroxyl end groups for reliable room‑temperature cross‑linking reaction
Impart high tensile strength and outstanding tear resistance to cured silicone rubber
Good elasticity and rebound property, suitable for repeated demolding operations
Compatible with silicone fillers and auxiliaries for formula adjustment

Main Applications

‑ Base polymer for high strength silicone mold rubber ‑ Craft and artwork replica silicone mold formulation ‑ Industrial prototype casting mold making ‑ Two‑component RTV silicone rubber compounding ‑ Molding silicone for gypsum, resin and concrete casting

Usage Recommendation

Complete batching and mixing under low‑humidity environment. Combine with silica filler, silane cross‑linker and organotin catalyst according to technical formula. Avoid moisture ingress which may interfere curing reaction. Adjust filler content to optimize hardness, strength and flow property of finished mold silicone.

Storage & Package

Store in cool, dry and sealed warehouse. Strictly keep away from moisture, steam and humid atmosphere to prevent pre‑crosslinking. Standard iron drum packaging. Tighten lid immediately after partial material taking. Open and handle drums under dry conditions.

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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.