top of page

Varglas SR-9400 Silicone Rubber Sleeving

Class 200

( -78°C to +200°C) (-108°F to +392°F) 

Varglas SR-9400 Silicone Rubber sleeving is produced by coating braided fiberglass with a highly crosslinked, high performance silicone rubber that is both flame resistant and extremely flexible. It falls under Class 200°C sleevings, in addition to its excellent electrical insulating properties, also displays outstanding low temperature operating capabilities.


Varglas SR-9400 Silicone Rubber sleevings conforms to MIL-I-3190/6, latest revision (Grade A); NEMA TF-1, Type 5; and ASTM-D372.

Under the Component Program of Underwriters Laboratories, Grade A Varglas SR-9400 Silicone Rubber is recognized for 200°C, 600-volt service and complies with VW-1 flammability requirements under UL File #E63450 (VW-1 compliance of Grades B through C-1 is covered under UL File #E53690). The Canadian Standards Association certifies the use of Grade A for 200°C, 600 volt service under CSA File #LR-58486.


Varglas SR-9400 Silicone Rubber sleevings are used in appliances, motors, generators, automotive, marine, aircraft electrical and electrical components such as transformers, coils and relays. Varglas SR-9400 is used where a 200°C thermal rating, flexibility and flame resistance is required.


In addition to being well-suited where high-heat endurance is necessary, Varglas SR-9400 Silicone Rubber sleevings are also suitable for use in extremely low temperature requirements.


AWG #24 through 1” l.D. Other sizes subject to inquiry.

Standard Colors

Natural or Black. Other colors subject to inquiry.

Standard Packaging

Coils, spools or 36” lengths at manufacturer’s option, unless otherwise specified. There is no cutting charge for 36” lengths, but lengths other than 36” are subject to cutting charges.
Sizes over 1” l.D. are generally supplied in 36” lengths.

Varglas SR-9400 Rubber Silicone Sleeving: List
bottom of page