Hydroxy Silicone Oil also named 107 gum base, is linear hydroxyl‑terminated polydimethylsiloxane. It performs condensation cross‑linking reaction with silane cross‑linker under organotin catalyst at room temperature to form elastic silicone rubber. Different viscosity grades can satisfy various compounding requirements. Cured silicone compound possesses excellent weather resistance, ozone resistance, low‑temperature flexibility and electrical insulation property, widely used in sealant, adhesive

Product Detail

Product Overview

Hydroxy Silicone Oil Raw Material CAS 70131‑67‑8 is silanol‑terminated polydimethylsiloxane, well‑known as 107 gum base for silicone compound. Reactive hydroxyl groups locate at both ends of molecular chain. When mixed with reinforcing fillers, cross‑linking agents and catalyst, it vulcanizes into flexible silicone elastomer via room‑temperature condensation reaction. Multiple viscosity specifications support formula development for different industrial silicone compound products.

Key Features

Reactive hydroxyl end groups, stable controllable condensation curing at ambient temperature
Diversified viscosity grades, adapt to different silicone compound manufacturing processes
Good wettability and compatibility with silica fillers and silicone auxiliaries
Cured silicone compound delivers superior anti‑aging, UV‑resistance and low‑temperature elasticity
Stable physicochemical performance, suitable for large‑scale industrial batching production

Main Applications

‑ 107 gum base for general industrial silicone compound ‑ Raw material for silicone sealant and adhesive formulation ‑ Electronic potting and encapsulation silicone compounding ‑ Mold‑making silicone rubber production ‑ Custom condensation‑cure silicone elastomer compound development

Usage Recommendation

Complete feeding, batching and mixing under low‑humidity environment. Blend hydroxy silicone oil, reinforcing filler, cross‑linker and catalyst strictly according to technical formula. Strictly prevent moisture ingress, moisture will result in bubbles, surface tackiness and incomplete vulcanization. Adjust filler dosage to optimize hardness, viscosity and mechanical indexes of finished silicone compound.

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. Fasten drum lid tightly immediately after partial material taking. Container opening and material handling should be carried out under dry conditions.

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Hydroxy Silicone Oil Raw Material CAS 70131-67-8 107 Gum Base for Silicone Compound

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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.