Coated Varflex Electrical Insulating Sleevings

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Varglas ES-4400 Silicone Rubber Sleeving

ES4400_Silicone_Rubber_Sleeving

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.

Varglas ES-4400 Silicone Rubber Typical Properties

  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
  Dielectric Strength after 48/23/50:
  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.
 
  Dielectric Strength after 96/23/96:
  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
MIL-I-3190/6 & UL 1441
Class 220 °C (R)
Exceeds MIL-l-3190/6, latest revision, and UL 1441, Class 200°C
  Brittleness Temperature ASTM-D350 -73°C
  Flame Resistance UL 1441 Passes (VW-1)
    ASTM-D350 Passes
    NEMA TF-1 Passes
    MIL-I-3190/8 Method A Passes
  Smoke Density (NBS Chamber) ASTM-E662 Passes. Avg. non-flaming 3.7 OD.;
Avg flaming 19.7 OD.
  Pushback after 168hrs. @ 250°C MIL-I-3190/8 No cracks or ruptures, 6000 volts min. avg. dielectric strength.
Note:
  Information contained here is precise and reliable. However, being unique, each end-use should be evaluated to satisfy its specific requirements.

Standard Sizes

Sleeving sizes in the following table are based on the size of round conductors that will fit snugly into the product without distortion of the sleeving.

Wire Size Inside DIameter Wall Thickness (minimum)
 
(AWD)
  Maximum
Inches
Nominal
inches
Minimum
Inches
MM Size
(to .5mm)
MM - Dec.
Equivalent
  Grade A
Inches
Grade B
Inches
Grade C
Inches
No. 24   0.027 0.022 0.020 .5 0.01969   0.011 0.007 0.006
No. 22   0.032 0.027 0.025       0.013 0.007 0.006
No. 20   0.039 0.034 0.032       0.013 0.007 0.006
No. 19   0.044 0.038 0.036 1.0 0.03937   0.013 0.007 0.006
No. 18   0.049 0.042 0.040       0.015 0.007 0.006
No. 17   0.055 0.047 0.045       0.015 0.007 0.006
No. 16   0.061 0.053 0.051       0.015 0.007 0.006
No. 15   0.066 0.059 0.057 1.5 0.05906   0.015 0.007 0.006
No. 14   0.072 0.066 0.064       0.015 0.007 0.006
No. 13   0.080 0.076 0.072 2.0 0.07874   0.015 0.007 0.006
No. 12   0.089 0.085 0.081       0.015 0.007 0.006
No. 11   0.101 0.095 0.091 2.5 0.09842   0.018 0.009 0.008
No. 10   0.112 0.106 0.102       0.018 0.009 0.008
No. 9   0.124 0.118 0.114 3.0 0.11811   0.018 0.009 0.008
No. 8   0.141 0.133 0.129 3.5 0.13780   0.018 0.009 0.008
No. 7   0.158 0.148 0.144 4.0 0.15748   0.018 0.009 0.008
No. 6   0.178 0.166 0.162 4.5 0.17716   0.020 0.011 0.010
No. 5   0.198 0.186 0.182 5.0 0.19685   0.020 0.011 0.010
No. 4   0.224 0.208 0.204 5.5 0.21654   0.020 0.011 0.010
No. 3   0.249 0.234 0.229 6.0 0.23622   0.020 0.011 0.010
No. 2   0.278 0.263 0.258 7.0 0.27559   0.020 0.011 0.010
No. 1   0.311 0.294 0.289 7.5 0.29528   0.020 0.011 0.010
5/16"   0.334 0.313 0.313 8.0 0.31496   0.020 0.011 0.010
No. 0   0.347 0.330 0.325 8.5 0.33464   0.025 0.011 0.016
3/8"   0.399 0.375 0.375 10.0 0.39370   0.025 0.017 0.016
7/16"   0.462 0.438 0.438 11.5 0.45276   0.025 0.017 0.016
1/2"   0.524 0.500 0.500 13.0 0.51181   0.025 0.017 0.016
5/8"   0.655 0.625 0.625 16.5 0.64960   0.025 0.017 0.016
3/4"   0.786 0.750 0.750 19.5 0.76772   0.025 0.017 0.016
7/8"   0.911 0.875 0.875 22.5 0.88582   0.025 0.017 0.016
1"   1.036 1.000 1.000 25.5 1.00470   0.025 0.017 0.016
Over 1" Upon Request
Government Specification
and Designation
Varflex Product Test or Qualification Reference Status
MIL-I-3190/2, Class 130°C, Type B,
Category b, All Colors, All Sizes, Grade A
Varflo, B-A-1 N.Y. 6139-1 On QPL for
MIL-I-3190/2
MIL-I-3190/3, Class 155°C, Type A,
Category a, All Colors, All Sizes, Grade A
Varglas Acrylic 343
and 397, F-A-1
Varflex Report No.4203
and Supplement
On QPL for
MIL-I-3190/3
MIL-I-3190/5, Class 200°C, Type C,
Category c, All Colors, All Sizes, Grade A
Varglas Silicone
Resin 500, H-A-1
Varflex Report No.4202
and Supplement
On QPL for
MIL-I-3190/5
MIL-I-3190/6, Class 200°C, Type D,
Category c, All Colors, All Sizes, Grade A
Varglas Silicone
Rubber, H-A-1
Varfiex Report No.4200
and Supplement
On QPL for
MIL-I-3190/6
MIL-I-3190/7, Class 220°C, Type E,
Category c, All Colors, All Sizes, Grade A
Varglas Viton 231,
R-A-1
Varflex Report No.4204 On QPL for
MIL-I-3190/7
MIL-I-3 190/8, Class 220°C, Type D,
Category c, All Colors, All Sizes, Grade A
Varglas ES-4400
Silicone Rubber, R-A-1
Varflex Report No.4201
and Supplement
On QPL for
MIL-I-3190/8
MIL-I-3190/9, Class 240°C, Type D,
Category c, All Colors, All Sizes, Grade A
Varglas 240 Silicone Rubber,S-A-1 Varflex Report No.4205,
Parts I and II
On QPL for
MIL-I-3190/9
MIL-I-631D, Type F, Form U, Grade c*,
Classes I & II, Category 1 (*high temperature)
Vartube SHH-3A and
SHH-6A
U.S. Testing Co.
Report No.51150
On QPL for
MIL-I-631D
MIL-I-631D, Type F, Form U, Grades a & b*,
Classes I & II, Category 1 (*general purpose)
Vartube 120/210 N.Y. 5203-90 On QPL for
MIL-I-631D
 

Definitions

Coated sleeving is a flexible, tubular product braided from cotton, rayon, nylon, glass or other fibers, which is impregnated, coated, or impregnated and coated with an electrical insulating material.


 Nema Grades

A-1

7000* volt average —
5000 volt minimum individual

B-1

4000 volt average —
2500 volt minimum individual

C-1

2500 volt average —
1500 volt minimum individual

C-2

1500 volt average —
800 volt minimum individual

C-3

No dielectric
guarantee
*For sleeving Types 3, 4, and 5, values are 8000 volt average, 6000 volt minimum individual.

For more information, refer to NEMA Standards for Coated Electric Sleeving. Also, ASTM D372.

 

Types & Classes

Coated sleeving is categorized by the type of coating, base fabric material, dielectric breakdown voltage, temperature index, and inside diameter as follows:

Type 2

A flexible treated sleeving made from inorganic-base yarns such as fibrous glass and impregnated or coated with an insulating material which can be shown by applicable experience or accepted test to have at temperature index of 130 (continuous use at 130°C)

Type 3

A flexible treated sleeving made from inorganic-base yarns such as fibrous glass and impregnated or coated with an insulating material, such as polyvinyl chloride, which can be shown by applicable experience or accepted test to have a temperature index of 105 (continuous use at 105°C).

Type 4

A flexible treated sleeving made from inorganic-base yarns such as fibrous glass and impregnated or coated with an insulating material, such as silicone resin or polytetrafluoroethylene, which can be shown by applicable experience or accepted test to have a temperature index of 200 (continuous use at 200°C).

Type 5

A flexible treated sleeving made from inorganic-base yarns such as fibrous glass and impregnated or coated with an insulating material, such as silicone elastomer, which can be shown by experience or accepted test to have a temperature index of 200 (continuous use at 200°C).

Type 6

A flexible treated sleeving made from inorganic-base yarns such as fibrous glass and impregnated or coated with an insulating material, such as epoxies, polyesters, or acrylics, which can be shown by experience or accepted test to have a temperature index of 155 (continuous use at 155°C).


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