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RJ-STP04

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Description

Polyether terminated with methyl dimethoxy silane.

CAS No: 75009-88-0

Chemical structure:

Feature

The sealant & adhesive formulated with RJ-STP04 are characterized by the following advantages:

v Excellent adhesion

v Longer shelf life

v Better weathering resistance

v Better environmental protection

Technical Index

Property

Specification

Appearance

clear, colorless viscous Oil

Boiling point

600-800

Viscosity(23℃)

6000-10000mPa.s

PH Value

6-8

Specific Gravity at 23°C

0.98-1.02

Flash point

110

Volatile

<1%

Water solubility

Insoluble

Molecular weight

10000

Application

RJ-STP04 is used as a reactive binder for sealants & adhesives , potting compounds and as additive in coatings.

Curing takes place in the presence of water or atmospheric humidity. Depending on the formulation, either one-part or two-part systems can be prepared:

- Elastic adhesives in structural and automotive engineering.

- Assembly adhesives

- Over paintable sealant for construction.

- Mold-making and potting compounds.

Guide formulation:

- 30 - 40 parts polymer

- 10 - 20 parts plasticizer (e.g. phthalate, polyether)

- 1 - 2 part water scavenger (e.g.vinyltrimethoxysilane)

- 2 - 5 parts thixotropic agent (e.g. silica)

- 40 - 50 parts fillers (e.g. chalks, titanium dioxide)

- 0.1 - 2 part of antioxidants and UV-stabilizers (e.g. phenols, HALS-stabilizers)

- 1 - 2 part adhesion promoter (organofunctional silanes)

- 0.3 - 0.6 part catalyst (e.g. Dibutyltin dilaurate, DBTDL)

Packing

200kg Iron Drums or other packing on request.

Storage

Transport as non-hazardous chemicals. Store in original container only. 

Keep container tightly closed and store in a dry, well ventilated place, in the temperature of 4℃-25℃.

Shelf life

Original characteristics remain intact for 1 years, if kept in recommended storage.   


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