Silanol Terminated PDMS is linear polydimethylsiloxane with silanol functional groups at molecular chain ends, also known as 107 silicone polymer. It can perform condensation cross‑linking reaction with silane cross‑linkers under organotin catalyst at room temperature to form elastic silicone elastomer. Various viscosity grades are available. Cured silicone delivers outstanding weather resistance, ozone resistance and low‑temperature flexibility, widely used for producing sealants, adhesives, po

Product Detail

Product Overview

Silanol Terminated PDMS Raw Material CAS 70131‑67‑8 is linear silanol‑functional polydimethylsiloxane designed for condensation cure silicone manufacturing. Terminal silanol groups provide reliable reactivity for room‑temperature cross‑linking. After compounding with reinforcing fillers, cross‑linking agents and catalyst, the mixture cures into high‑performance silicone rubber. Multiple viscosity options satisfy diverse formula requirements for different condensation‑cure silicone end‑products.

Key Features

Reactive silanol end‑groups for controllable condensation cure reaction
Wide available viscosity range to fit various silicone production processes
Good miscibility with fumed silica, precipitated silica and silicone additives
Cured elastomer exhibits excellent anti‑aging, UV‑resistance and low‑temperature elasticity
Stable chemical property, suitable for large‑scale industrial compounding

Main Applications

‑ Base raw material for condensation cure silicone production ‑ Two‑component RTV silicone sealant and adhesive formulation ‑ Electronic potting and encapsulation silicone compounding ‑ Industrial mold‑making silicone rubber manufacturing ‑ Custom condensation‑cure silicone elastomer development

Usage Recommendation

All batching and mixing operations must be conducted under low‑humidity conditions. Combine polymer, reinforcing filler, cross‑linker and catalyst according to production formula. Prevent moisture ingress during processing, moisture will cause bubbles, surface tackiness and incomplete vulcanization. Adjust filler loading to tune hardness, viscosity and mechanical properties of finished silicone products.

Storage & Package

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

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Silanol Terminated PDMS Raw Material CAS 70131-67-8 for Condensation Cure Silicone Production

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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.