Coated Varflex Electrical Insulating Sleevings

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Varglas Silicone Resin 500 Sleeving

Silicone_Resin_500_Sleeving

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.

Varglas Silicone Resin 500 Typical Properties

  Property Procedure Performance
Physical
  Tensile Strength, Coating ASTM-D412 200 psi
  Ultimate Elongation, Coating ASTM-D412 100% @ 20°C
  Hardness, Coating ASTM-D2240 60 (Durometer, Shore A)
  Flexibility and toughness, Coating UL 1441 Passes (Penetration Test)
Chemical
  Oil and Solvent Resistance MIL-l-3190/5 Passes
  Water Vapor Resistance MIL-l-3190/5 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
  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.
  Grade C-2 NEMA-TF-1 1500v min. avg., 800v min. indiv.
  Grade C-3 NEMA-TF-1 No voltage guarantee.
 
  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-3190/5 5000v min. avg.
Thermal
  Thermal Endurance MIL-l-3190/5
UL 1441
Class 200°C (H)
  Brittleness Temperature ASTM-D350 -56°C
  Flame Resistance ASTM-D350, Method B Passes
    NEMA TF-1 Passes
    MIL-I-3190/5 Method B Passes
    UL 1441 Passes (VW-1) (HC3 grade only)
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).


Sample Folders

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