PDF Data Sheet
A PDF file that contains all the specs for Varglas ES-4400 Silicone Rubber Sleeving is available for download by clicking on the link below.
Varglas ES-4400 Silicone Rubber Sleeving Spec Sheet
If
you don't already have Adobe Acrobat, click the Icon below
to take you
to the Adobe Reader software site where you can download the appropriate version for your platform and operating system.
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 ES-4400 Silicone Rubber Sleeving is produced by curing a specially compounded silicone gum with a select catalyst on a continuous length of fiberglass braid. Most silicone rubber is characterized, chiefly, by its capability of performing satisfactorily at elevated temperatures. Varglas ES-4400 Silicone Rubber, in addition to providing superior dielectric and thermal protection, at less weight, was developed to meet unusual fluid and flame resistance requirements. Its high temperature performance places it in a 220°C classification.
Specifications
Varglas ES-4400 Silicone Rubber Sleeving conforms to, and is listed on the Qualified Products List (QPL) for, MIL-l-3190/8, latest revision (Grade A). It also exceeds the requirements of NEMA TF-1, Type 5; and ASTM-D372.
Under the Component Program of Underwriters Laboratories, Grade A Varglas ES-4400 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.) CSA International certified the use of Grade A for 200°C, 600 volt service and flammability requirements under CSA File #LR58486 VW-1/FT1. Varglas ES-4400 is incorporated in systems work, per UL Safety Standard 1446, to facilitate product acceptance by UL.
Applications
Varglas ES-4400 Silicone Rubber Sleeving’s superior dielectric strength, high and low temperature performance, and excellent fluid and flame resistance make it ideally suited for use in industrial instrumentation for measurement, analysis and control; surgical, medical and optical instruments and apparatus; electrical and electronic machinery and equipment; and aircraft and other transportation equipment where its lighter weight provides an additional performance advantage.
Sizes
AWG #24 through 2” l.D. Other sizes subject to inquiry.
Standard Color
Blue-gray and tan. 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 | |||
|---|---|---|---|
| Tear Strength, COating | ASTM-D624 | 180 psi (Die B) | |
| Ultimate Elongation, Coating | ASTM-D882 | 570% @ 20°C | |
| Hardness, Coating | ASTM-D2240 | 50 (Durometer, Shore A-2) | |
| Flexibility and toughness, Coating | UL 1441 | Passes (Penetration Test) | |
| Chemical | |||
| Chemical Resistance | UL 1441 | Resistant to solvents and fluids including water vapor | |
| Fungus Resistance | MlL- I- 631 | Passes | |
| Oil Resistance, 22 hour immersion @70°C | ASTM - D471 | No measurable change in wall thickness when immersed in Skydrol LD. Varflex tests indicate good resistance to Freon 22 and refrigeratio oil Suniso® 3-G | |
| Compatibility | UL 1446 | Good. Compatible with select potting compounds and varnished wires with no deteriorating effects on end properties. | |
| Electrical | |||
| Grade A | NEMA TF-1 | 8000v min. avg., 6000v min. indiv. | |
| Grade B | NEMA TF-1 | 4000v min. avg., 2500v min. indiv. | |
| Grade C-1 | NEMA TF-1 | 2500v min. avg., 1500v min. indiv. | |
| Grade A | NEMA TF-1 | 80% of Original Value. | |
| Hydrolytic Stability after 336 hrs. @ 70°C over Constant Water Reflux | MIL-l-3190/8 | 5000v min. avg. | |
| Thermal | |||
| Thermal Endurance | MIL-l-3190/8 UL 1441 |
Class 220 °C (R) | |
| Brittleness Temperature | ASTM-D350 | -73°C | |
| UL 1441 | Passes (VW-1) | ||
| ASTM-D350 | Passes | ||
| NEMA TF-1 | Passes | ||
| MIL-I-3190/8 Method A | Passes | ||
| Note: | |||