107 RTV Silicone Base Raw Material CAS 70131‑67‑8 for Two Component Silicone Formulation
107 RTV Silicone Base Raw Material is hydroxyl‑terminated polydimethylsiloxane, the fundamental base gum for two‑component condensation‑cure silicone. It cross‑links with silane cross‑linker under organotin catalyst at room temperature to form elastic silicone rubber. Various viscosity grades meet different processing requirements. Cured silicone exhibits excellent weather resistance, ozone resistance, low‑temperature flexibility and dielectric property, suitable for manufacturing sealants, adhe
Product Overview
107 RTV Silicone Base Raw Material CAS 70131‑67‑8 is linear silanol‑terminated polydimethylsiloxane specially developed for two‑component silicone formulation. Reactive hydroxyl groups on chain ends enable room‑temperature condensation cross‑linking. After blending with reinforcing fillers, cross‑linking agents and catalyst, the mixture vulcanizes into high‑performance silicone elastomer. Multiple viscosity options support formula tuning for different two‑part silicone end‑products across multiple industries.
Key Features
- Reactive hydroxyl end groups, stable room‑temperature condensation curing performance
- Multiple viscosity grades available for diverse two‑component silicone formulation
- Good compatibility with silica fillers, plasticizers and silicone functional additives
- Cured silicone shows outstanding anti‑aging, UV‑resistance and low‑temperature elasticity
- Stable physical and chemical properties, fit for large‑scale industrial compounding
Main Applications
‑ Base raw material for two‑component silicone formulation ‑ Two‑part RTV silicone sealant and adhesive production ‑ Electronic potting and encapsulation silicone compounding ‑ Industrial mold‑making silicone rubber manufacturing ‑ Custom condensation‑cure two‑component silicone development
Usage Recommendation
Conduct feeding, batching and mixing under low‑humidity environment. Combine silicone base, reinforcing filler, cross‑linker and catalyst following production formula strictly. Avoid moisture contamination during processing; moisture will trigger bubbles, surface tackiness and incomplete vulcanization. Adjust filler loading to modify hardness, viscosity and mechanical performance of finished two‑component silicone products.
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 discharge. Open and handle containers only under dry working conditions.
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