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Varglas Hermetic Sleeving
Copolymer Coated Fiberglass Sleeving Class 130 (-25°C to +130°C) (-13°F to +266°F)
Description
Varglas Hermetic Sleeving is produced by coating braided Fiberglas® with a highly-crosslinked, modified acrylic copolymer that is extremely flexible yet very tough and abrasion resistant. It is highly resistant to refrigerants, at both high and low temperatures, and compatible with potting compounds and varnishes. Varglas Hermetic Sleeving offers good resistance to thermal shock and is unaffected by most common oils including xylol/paraffin oil (50/50 mixture by volume), refrigeration lubricants Suniso® 3-G (a mineral oil), Icematic® SW100 (a synthetic polyol-ester oil), and ZEROL® 150 (a synthetic alkylbenzene oil) and solvents including methylene chloride, toluene, xylene and 1,1,1 trichlorethane. Designed specifically for hermetic motors, its “low extraction” levels of soluble materials protect against contamination, as well as clogging, within the compressor system.

Specifications
Varglas Hermetic Sleeving meets the requirements of NEMA TF-1, Type 2, and ASTM-D372.

Applications
Varglas Hermetic Sleeving is ideally suited as insulation in hermetically-sealed refrigeration units. It is resistant to hydrochlorofluorocarbon (HCFC) refrigerants such as R-22 and R-123 as well as the new, environmentally-friendly hydroflourocarbon (HFC) refrigerants such as R-134a. It also is compatible with mineral-oil lubricants such as Suniso® 3-G, synthetic polyol-ester refrigeration lubricants such as Icematic® SW1OO, and synthetic alkylbenzene refrigeration oils such as ZEROL® 150. In addition to being free of contaminating impurities, its tough coating resists thermal shock, rough assembly handling, and mechanical stress without loss of dielectric strength.

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

Standard Color
Natural.

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.

FibergIas® is a registered trademark of Owens-Corning.
Suniso® is a registered trademark of Witco Corporation.
Icematic® is a registered trademark of Castrol, Inc.
ZEROL® is a registered trademark of Shrieve Chemical Products Company.

Typical Properties

Property Procedure Performance
Physical
Flexibility and Toughness, Coating UL 1441 Passes ( Cold bend and penetration tests).
Abrasion and cut- through resistance.
—
 Excellent
Chemical
Resistance to Refrigerants (Extractables) @ high psi and temperatures GE Test Method #E5OFH15-51 “Freon® 22 Extractables” Passes (Excellent). Extractables of less than 0.5% (actual 0.2%) in Refrigerants R-22, R-123 & R-134a.
Water Resistance (Water Extraction)
GE Test Method #E5OFH16-51 “Water Extraction”
 Passes (Excellent). Extractables of less than 0.5% (actual 0.3%)
Resistance to Refrigerants and Oils (Blister Test)
GE Test Method #ESOKM16 “Resistance of Hermetic Insulation”
Passes (Excellent). No blisters when removed from 50/50 mixtures (volume) of HCFC or HFC refrigerants and mineral, polyol-ester or alkylbenzene oils.
Oil and Solvent Resistance MIL-l-3190/3
& MIL-l-3190/6		 Good. No cracks, softening or swelling when immersed in mineral or polyol-ester oil; methylene chloride; toluene; xylene and 1,1,1 trichlorethane.
Compatibility UL 1446 Good. Compatible with most potting compounds and varnishes.
Electrical
Dielectric Strength after 48/23/50:
    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 B
NEMA TF - 1 45% of Original Value. (MIL-I-3190/3 requires 30% for Garde A)
Hydrolytic Stability after 336 hrs. @ 70°C over Constant Water Reflux MIL-I-3190/3 2200 volts min. avg. (Spec. requires 1500 volts for Grade A).
Thermal
Thermal Endurance MIL-l-3190/2 & UL 1441 Class 130°C (B)
Brittleness Temperature ASTM-D350 - 25°C
Flame Resistance UL 1441, Horiz. Specimen Passes
ASTM-D350, Method B Passes
NEMA VS-1 Passes
MIL-l-3190/2, Method B Passes
Resistance to Potting Temperature MIL-l-3190 No blisters, flow or cracks visible after 15 min. @ 225°C.

Note: Information contained here is precise and reliable. However, being unique, each end-use should be evaluated to satisfy its specific requirements.
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