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Adhesives Ingredients

HMS -991

Technical DataSheet | Supplied by Gelest

Polymethylhydrosiloxanes. It exhibits the highest compressibility of the silicone fluids, 9.32% at 20,000 psi and the lowest viscosity temperature coefficient, 0.50. This trimethylsiloxy terminated hydride functional homopolymers undergoes three main classes of reactivity: hydrosilylation, dehydrogenative coupling and hydride transfer. It is a versatile low cost hydride transfer reagent with the hydride equivalent weight of 60. The reactions are catalyzed by Pd0 or dibutyltin oxide and the choice of reaction conditions lead to chemo selective reduction, e.g. allyl reductions in the presence of ketones and aldehydes. Used as water-proofing agents, reducing agents, components in some foamed silicone systems and in encapsulant applications.

HMS -991 Product details

Product Type
  • xxxxxxxxxxxxxx
  • xxxxxxxxxxxxxxxxxxxxxxxxx
Chemical Composition
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CAS Number
63148-57-2
Physical Form
Liquid
Appearance
Clear
Product Status
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Applications/ Recommended for
  • xxxxxxxxx
  • xxxxxxxx
Labels/Agency Rating
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HMS -991 Properties

Property

Value & Unit
Test Condition
Test Method
Viscosity
xxxxxxx
Molecular weight
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Specific gravity
xxxx
Refractive index
xxxxx
MeHSiO
xxx mole%
Boiling point
xxxxx °C
Melting point
xxxxx °C
Equivalent weight
xx

Solubility Properties

Element
Test Condition
Test Method
Insoluble in
xxxxx
Last edited Jun 8, 2016
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