Varglas 240 Info
A PDF file that contains all the specs for Varglas Silicone Resin 500 Rubber Sleeving is available for download by clicking on the link below.
Varglas Silcone Resin 500 Sleeving Spec Sheet
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Varflex Products
Varflex Corporation
512 W. Court Street
Rome, NY USA 13440
Phone: 315-336-4400
Fax: 315-336-0005
EMail: sales
varflex.com
Description
Varglas Silicone Resin 500 Sleeving is a fiberglass braid with a silicone composite coating. This sleeving is best in areas where design requirements specify superior moisture, heat and radiation resistance. In addition to its Class 200°C rating, it also exhibits good low temperature properties. Varglas Silicone Resin Sleeving is available as Silicone Resin 500 in the four top grades and as standard Silicone Resin in Grade C-3 with Silicone Resin 500 being a more flexible product designed to conform to sharp bends.
Specifications
Varglas Silicone Resin 500 Sleeving conforms to, and is listed on the Qualified Products List (QPL) for, MIL-l-3190/5, latest revision (Grade A); NEMA TF-1, Type 4; and ASTM-D372.
Under the Component Program of Underwriters Laboratories, Grade A Varglas Silicone Resin 500 is recognized for 200°C, 600 volt service under UL File #E63450. It is incorporated in systems work, per UL Safety Standard 1446, to facilitate product acceptance by UL. CSA International certifies the use of Grade A Resin 500 for 200°C, 600 volt service under CSA File #LR58486. Additionally, standard Silicone Resin (Grade C-3) complies with UL’s VW-1 flammability requirements under UL File #E53690.
Applications
Varglas Silicone Resin 500 Sleeving is used in nuclear motors, electric motors, equipment leads, relay leads and heating cable where flexibility, high dielectric protection and heat endurance are required and temperatures up to 200°C are encountered. Its good abrasion and radiation resistance also find wide use in aerospace and atomic energy applications.
Sizes
AWG #24 through 2” l.D. Other sizes subject to inquiry.
Standard Color
Natural. Other colors made to order.
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.
| Property | Procedure | Performance | |
| Physical | |||
|---|---|---|---|
| Tensile Strength, Coating | ASTM-D412 | 1600 psi | |
| Ultimate Elongation, Coating | ASTM-D412 | 800% @ 20°C | |
| Hardness, Coating | ASTM-D2240 | 54 (Durometer, Shore A) | |
| Flexibility and toughness, Coating | UL 1441 | Passes (Penetration Test) | |
| Chemical | |||
| Oil and Solvent Resistance | MIL-l-3190/9 | Passes | |
| Water Vapor Resistance | MIL-l-3190/9 | Passes | |
| Resistance to Acids and Alkalies | –– | Excellent | |
| Resistance to the Elements | –– | Unaffected by sunlight and weather | |
| Compatibility | UL 1446 | Good. Compatible with most potting compounds and varnishes |
|
| Electrical | |||
| Grade A | NEMA TF-1 | 8000v min. avg., 6000v min. indiv. | |
| Grade A | NEMA TF-1 | 80% of Original Value. | |
| Hydrolytic Stability after 336 hrs. @ 70°C over Constant Water Reflux |
MIL-l-3190/9 | Passes. 7000v min. avg. with no disintegration, reversion or cracks. (Spec. requires 5000v.) |
|
| Thermal | |||
| Thermal Endurance | MIL-l-3190/9 UL 1441 |
Class 240°C (S) | |
| Brittleness Temperature | ASTM-D350 | -80°C | |
| UL 1441 | Passes (VW-1) | ||
| ASTM-D350, Method A | Passes | ||
| NEMA TF-1 | Passes | ||
| MIL-I-3190/9 Method A | Passes | ||
| Note: | |||