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Glyptal® 9620 INSULATING VARNISH is a clear air-drying , insulating, and finishing varnish designed for applications where oil, moisture, and acid-resistant coatings are desired. This fast-drying, synthetic-resin-type varnish is often used as a final coat over other varnishes, giving a hard, glossy protective coating. Glyptal® 9620 Varnish has excellent heat resistance and will operate as a finish coat at temperatures up to 130ºC on an apparatus that is not flexed. Although primarily an airdrying varnish, the oil, moisture, acid, and salt water resistance are greatly improved by baking. Glyptal® 9620 has excellent adhesion to most materials. It has excellent dip tank stability where the proper thinners are used.

Product Type: Varnishes

Features: Acid Resistant, Fast Drying, Good Adhesion, Heat Resistance, High Gloss, Moisture Resistant, Oil Resistant

Technical Data Sheet
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Knowde Enhanced TDS

Identification & Functionality

Product Type
Solvent System
Xylene
Chemical Resistance
Oil (Transil) Excellent
Water Good
Salt Water Good
Acid Good
Alkali Fair

Features & Benefits

Applications & Uses

Cure Method
Applications

GLYPTAL 9620 is suggested as a general-purpose insulating and finishing varnish for form and random-wound coils, stators, armatures, and most other types of electrical apparatuses. It is excellent for giving and oil-resistant finish coating over inexpensive asphalt varnishes.

GLYPTAL 9620 has also found many uses as a fast-drying, general purpose adhesive, protective coating, and insulating varnish. It is especially suggested for treatment of small windings where air-drying or short-baking cycles are required.

GLYPTAL 9620 is compatible with systems using varnished cloth, cotton, rayon, Dacron, polyester fiber, nylon, glass tapes, laminates, slot liners and slot wedges, mica products, Irrathene, irradiated polyethylene, mylar film, oleoresinous and Formvar wire enamels, vinyl and acetate products, metals, braided wires and cables, and most other materials found in electrical equipment.

Properties

Typical Properties
ValueUnitsTest Method / Conditions
Dielectric Strength (24 hours in water)600.0vpm
Percent Solid by Weight40 ± 2%
Viscosity (25°C)average. 300-500cps
Specific Gravity (25°C)average. 0.98
Flash Point66.0°F
Air Drying Time - Tack Free (1 mil dry film)average. ½hours
Dielectric Strength - Dry2500.0vpmASTM D115-55