Hydroxy Silicone Oil 5000cst CAS 70131-67-8 Base Polymer for Neutral Silicone Sealant
Hydroxy Silicone Oil 5000cst CAS 70131-67-8 is medium-viscosity hydroxyl-terminated polydimethylsiloxane, also known as 107 silicone rubber.
It contains reactive terminal hydroxyl groups and can undergo polycondensation crosslinking reaction with ketoxime silane crosslinkers under catalyst. The cured silicone sealant releases neutral small molecules with low corrosion to substrates. It acts as the key base polymer for manufacturing single-component neutral silicone sealants.
Hydroxy Silicone Oil 5000cst CAS 70131-67-8
Product Detail Page（Suitable for Alibaba International & Official Website）
Product Overview
Hydroxy Silicone Oil 5000cst CAS 70131-67-8 is medium viscosity hydroxyl-terminated polydimethylsiloxane, commonly named 107 silicone rubber.Equipped with active terminal hydroxyl groups, it can perform polycondensation crosslinking reaction with ketoxime silane crosslinkers with catalyst participation. After curing, neutral micromolecules are separated out without strong corrosion to metal, glass and plastic substrates. It is specially developed as core base polymer for one-component neutral silicone sealant.
Product Properties
Clear, colorless viscous liquidKinematic viscosity: 5000 mm²/s (25℃)Stable hydroxyl valueNarrow molecular weight distributionExcellent compatibility with fillers, ketoxime crosslinkers and catalystsLow volatile contentGood thixotropy coordination performanceStable quality under hermetic storage
Core Advantages
- Stable viscosity, convenient to adjust extrusion performance of finished neutral sealant
- Great dispersibility with calcium carbonate, silica and other inorganic fillers
- Steady crosslinking reaction, uniform surface drying and deep curing speed
- Low substrate corrosion, suitable for electronic assembly, aluminum profile bonding
- Low impurity content, effectively prolong shelf life of single-component sealant
- Balanced tensile strength and elongation of cured sealant, outstanding weather resistance
Main Applications
5000cst Hydroxy Silicone Oil acts as Base Polymer for Neutral Silicone Sealant.Typical applications: raw material for one-component ketoxime neutral silicone sealant, electronic appliance bonding sealant, aluminum window weatherproof sealant, glass assembly neutral adhesive, waterproof sealant for lighting equipment.
Usage Guidance
Avoid moisture contact during production and storage to prevent premature crosslinking.Complete small-batch formula test to confirm matching crosslinker and catalyst dosage.Maintain dry environment in production workshop.Forbid mixing with acidic, alkaline and moisture-containing impurities.Seal container tightly after use.
Packing & Storage
Standard package: 200kg iron drum; small test samples are available.Store in cool, dry and ventilated warehouse. Keep container tightly sealed. Keep away from open flame, high temperature, strong acid and alkali. Avoid water and foreign impurity contamination during transportation.
Our Service
We supply bulk 5000cst Hydroxy Silicone Oil with stable viscosity and hydroxyl value. Test samples can be offered for formula research. Our technical team provides professional support for neutral silicone sealant production process.
Previous : Hydroxy Silicone Oil 1000cst CAS 70131-67-8 Base Polymer for RTV-2 Silicone Mold Making Rubber
Next : Hydroxy Silicone Oil 10000cst CAS 70131-67-8 Base Polymer for Acetic Silicone Sealant
Copy product links
Long by picture save/share
Add Successfully
Add Successfully
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.
点击右上角
分享给朋友吧
Copyright © 2005-2026 Shenzhen Jishengya Technology Co., Ltd. All Rights Reserved.
