LOCTITE STYCAST 4640

LOCTITE STYCAST 4640, Silicone, Flexible, Potting or Encapsulant LOCTITE® STYCAST 4640 RTV condensation cure silicone rubber syntactic foam is engineered to yield a flexible, low density material with a low dielectric constant and dissipation factor. It is designed for airborne potting, sealing and caulking applications requiring low weight and excellent dielectric properties. LOCTITE STYCAST 4640 can be used with LOCTITE CAT 50 or LOCTITE CAT 50-2 AMB.

• Lightweight
• Two components
• High temperature resistance
• Thermally conductive

Color	White
Cure Schedule, @ 25.0 °C	16.0 - 24.0 hr.
Cure Schedule, @ 65.0 °C	2.0 - 4.0 hr.
Cure Type	Heat Cure
Density	0.75 g/cm³
Number of Components	2 Part
Operating Temperature	-65.0 - 260.0 °C
Physical Form	Liquid
Shelf Life	183.0 day
Shore Hardness, Shore A	70.0
Storage Temperature	4.0 °C
Technology	Silicone
Tensile Strength	1.4 N/mm² (200.0 psi )
Viscosity, Brookfield	45000.0 mPa·s (cP)
Volume Resistivity	> 1x10¹⁴ Ohm cm