107 Silicone Polymer 100000 cst CAS 70131-67-8 for Insulating Glass Sealant
107 Silicone Polymer 100000 cst is high‑viscosity hydroxyl‑terminated polydimethylsiloxane. With high molecular weight structure, it offers outstanding mechanical properties after room‑temperature vulcanization. It cross‑links with silane cross‑linker in presence of catalyst to form elastic silicone rubber. The product is mainly used for formulating two‑component insulating glass sealant for architectural double glazing, delivering good weather resistance, anti‑UV property and stable sealing per
Product Overview
107 Silicone Polymer 100000 cst CAS 70131‑67‑8 is linear hydroxyl‑terminated polydimethylsiloxane with high viscosity. Reactive hydroxyl groups on chain ends enable room‑temperature cross‑linking reaction. After compounding with reinforcing filler, cross‑linking agent and catalyst, it cures into elastic silicone rubber. High molecular weight backbone grants cured sealant high tensile property, low modulus and long‑term outdoor ageing resistance, meeting strict requirements of insulating glass secondary sealing.
Key Features
- Stable 100000 cst high viscosity, suitable for insulating glass sealant compounding
- Reactive hydroxyl end groups for efficient room‑temperature vulcanization
- Endow cured sealant with high elasticity, good tensile and tear performance
- Excellent UV resistance, weather and ozone resistance for long‑term building exterior service
- Good compatibility with silica fillers and silicone additives for formula adjustment
Main Applications
- Base polymer for two‑component insulating glass secondary sealant
- Architectural double glazing sealing silicone formulation
- Building weather‑proof silicone sealant production
- RTV silicone rubber for construction sealing
- Functional polymer for glazing and curtain wall sealant
Usage Recommendation
Carry out feeding and mixing under low‑humidity working environment. Compound with reinforcing filler, cross‑linker and organotin catalyst according to production formula. Prevent moisture contamination during processing, moisture will cause abnormal curing. Adjust filler loading to modify modulus, hardness and extrusion performance of finished sealant.
Storage & Package
Store in cool, dry and hermetically sealed warehouse. Keep far away from humid air and water vapor to avoid premature cross‑linking. Standard iron drum packaging. Fasten drum cover tightly immediately after partial discharging. All container opening operations shall be performed under dry condition.
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