Rtv6428-2Lb, 2-Part Adhesive Sealant, 2Lb. Kit, Must Order 6

MG Chemicals SKU: RTV6428-2LB
Rtv6428-2Lb, 2-Part Adhesive Sealant, 2Lb. Kit, Must Order 6

Rtv6428-2Lb, 2-Part Adhesive Sealant, 2Lb. Kit, Must Order 6

MG Chemicals SKU: RTV6428-2LB
Regular price $155.34
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Shipping calculated at checkout.
Primary Characteristics

Fast cure times
Excellent flammability properties 
Low viscosity

RTV6428 silicone rubber compound is a very fast curing, two-component, low viscosity, RTV silicone material formulated for encapsulation and potting applications. It is well suited for providing protection of electronic components and assemblies against thermal shock, vibration, moisture, ozone, dust, many types of chemicals, and other environmental hazards. With its? outstanding dielectric and flammability properties, it is also used for encapsulation of high voltage transformers, voltage regulators and power converters. 

RTV6428 silicone rubber compound is specifically designed to offer an extremely fast cure time either at room temperature or with the addition of heat. It is supplied with curing agent in matched kits which are used at a convenient 1:1 ratio by weight.



Available Sizes

Catalog No. Description  
RTV6428-2LB RTV6428 002- Kit (2LBS-0.9KG) Special Order 
RTV6428-100LB RTV6428 100-Pail Kit (100.0LBS-45.40KG) Special Order

Specifications

Typical Uncured Properties (mixed 1:1 by weight)
Color Dark Gray
Consistency

Easily Pourable

Viscosity, cps 1300
Work Time (Pot Life) 2.0 - 4.0 minutes (at 25C / 77F)
Typical Cured Properties (cured 1 hour at 100C)
MECHANICAL
Hardness 62 (Shore A)
Tensile Strength 33 kg/cm2 (475 psi)
Elongation 60%
Tear Strength 3.4 kg/cm (19 lb/in)
Linear Shrinkage, % 0.2
FLAMMABILITY (1.9mm /0.075 in. thick)
Limiting Oxygen Index, % 37
UL94 Classification 
3.00mm (0.118 in.) min. thickness
V-1
6.00mm (0.236 in.) min. thickness V-0
ELECTRICAL (1.9mm (0.075 in.) thick)
Dielectric Strength, kv/mm (v/mil) 0.9 (530)
Dielectric Constant (1000 Hz) 3.09
Dissipation Factor (1000 Hz) 0.0061
Volume Resistivity 5.7 x 1014 ohm cm
THERMAL
Useful Temperature Range, C (F) -60 to 204 (-75 to 400)
Thermal Conductivity (W/mk) 0.31
Coefficient of Thermal Expansion 21.6 x 10-5 cm/cm C (12 x 10-5 in/in F)

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