Silane Terminated Polyether

Introduction

SiSiB® STP81030 is an alkoxy silane terminated polyether polymer. It can be used in moisture curing elastic sealant, elastic structure sealant and sealing coatings to achieve excellent adhesion to broad range of substrates.

SiSiB® STP81030 based system is free of solvent, isocyanate, bubbles and odor during curing, which is quite different from polyurethane and silicone system. It is especially suitable for construction industry, transportation industry and general industry application.

Properties

Features

• High activity, Medium -High Modulus

• Excellent aging and yellowing resistance

• Superb water resistance, chemical corrosion resistance

• Excellent storage stability

• Solvent free, odorless , eco-friendly

• Lower viscosity, more powder

Application

SiSiB® STP81030 polymer can be used as base polymer in elastic sealants, elastic structure sealants, encapsulate adhesives and coatings by moisture curing. It is suitable for both single component and two-component system.

• General sealant

• Waterproofing coating

• Eco-friendly decoration sealant

Processing

• SiSiB® STP81030 polymer dissolves readily in standard organic solvents. It is virtually insoluble in aqueous media, and react slowly releasing methanol and ethanol forming inert material. Despite its highly reactive terminal groups, uncatalyzed SiSiB® STP81030 is stable in air for several days. However, its reactivity with water or atmospheric humidity must be taken into account during storage and processing, since the material will slowly starts to condensate.

• SiSiB® STP81030 polymer can be formulated by conventional methods and mixing processes. Water scavengers should be added to stabilize the formulations against premature curing during compounding or as a result of exposure to moisture during storage. We suggest using vinyltrimethoxysilane.