Typical Physical Properties
Chemical Name: Gamma-Methacryloxypropyltrimethoxysilane
Empirical Formula: C10H20O5Si
Molecular Weight: 248.4
Color and Appearance: Colorless transparent liquid
Density 25/25 degree: 1.045
Boiling Point: 255 degree(760mmHg)
Refractive Index: 1.4202 +/- 0.0005(25 degree)
Viscosity 25 degree: 2 cSt
Flash Point: 108 degree
CAS No.: 2530-85-0
EINECS No.: 219-785-8
Min. Purity; 98.0%

Solubility
WD-70 is soluble in methanol, ethanol, isopropanol, acetone, benzene, toluene, and xylene. After hydrolysis, it is soluble in water with adequate stirring if the pH is adjusted to 4.0. Hydrolysis releases methanol.
WD-70 shows copolymerization or grafting reactions when catalyzed by (organic) initiator systems, e. G. Peroxides or by radiation (e. G. UV).

Applications
Improves strength as glass fiber size composite in reinforced polyester composites.
Enhances initial and wet strength of reinforced polyester resin composites.
Enhances the wet electrical properties of many mineral-filled and reinforced composites.
Crosslinks acrylic type resins improving adhesion and durability of adhesives and coatings.