Hydroxy Terminated Polydimethylsiloxane, known as 107 silicone raw material, is linear silanol‑terminated polydimethylsiloxane. It can realize condensation cross‑linking reaction with silane cross‑linker under catalyst at room temperature and form elastic silicone rubber. Multiple viscosity grades are available to match different production processes. Cured products exhibit outstanding weather resistance, ozone resistance and mechanical properties, widely adopted as core base polymer for various

Product Detail

Product Overview

Hydroxy Terminated Polydimethylsiloxane 107 Silicone Raw Material CAS 70131‑67‑8 is linear polydimethylsiloxane with hydroxyl groups on both molecular chain ends. In sealant production, it is compounded with reinforcing fillers, cross‑linking agents and organotin catalyst. Room‑temperature condensation reaction generates cross‑linked silicone elastomer. Diversified viscosity specifications support formula development for construction, industrial and general‑purpose sealants.

Key Features

Active hydroxyl terminal groups, stable room‑temperature condensation vulcanization performance
Multiple viscosity options, adaptable to different sealant compounding and extrusion processes
Excellent compatibility with silica fillers, plasticizers and other silicone additives
Cured sealant delivers superior UV‑resistance, ozone resistance and long‑term outdoor weatherability
Balanced mechanical strength, cohesive performance and low‑temperature flexibility

Main Applications

Base polymer for two‑component silicone sealant manufacturing
Construction sealant and joint‑sealing adhesive formulation
Industrial silicone adhesive compounding
Condensation‑cure RTV silicone rubber production
Raw material for custom‑developed sealant grades

Usage Recommendation

Complete feeding and mixing under low‑humidity working conditions. Mix polymer, reinforcing filler, cross‑linker and catalyst strictly according to production formula. Keep moisture away from mixing system, moisture will cause bubbles, surface stickiness and incomplete curing. Adjust filler content to optimize extrusion property, hardness and mechanical indicators of finished sealant.

Storage & Package

Store in cool, dry and hermetically sealed warehouse. Keep away from humid air and water vapor to prevent premature cross‑linking. Standard iron drum packaging. Tighten drum lid immediately after partial material taking. Open and handle containers only in dry environment.

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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.