Dolphs AC-41 Varnish – 5 Gallon Pail

Description

Dolphs AC-41 is a high temperature; fast cure, air dry, polyurethane varnish, and is an excellent conformal coating for all electrical and electronic parts. It is especially recommended as a circuit board coating. SYNTHITE® AC-41 is also available in aerosol as DOLPH – SPRAY® AC-41.

Features & Benefits:

Fast drying – Units can be handled in 30 minutes Ease of Application (dip, brush or spray) High temperature rating Excellent chemical resistance

Oil and moisture resistant Superior abrasion resistance Excellent adhesion UL recognized systems

Typical Applications:

Field Coils  Control Coils Motor Frames Switch Bases Molded Bakelite Electrical Connectors

Collector Rings Fuse Tubes Solenoid Coils Controller Shafts Printed Circuit Boards Commutator Ends

Porcelain Soldered Joints Finger Blocks Oil reservoir interior Buss bars Touch up overcoat

Typical Properties:

Color /Appearance	Light-Dark Amber
Density @ 77°F (25 °C), Lbs/gal	7.0 – 8.0
Viscosity @ 77°F (25°C) Brookfield Viscometer cps	125 – 275
Flash point	81°F (27°C)
Cure Time @ 77°F (25°C) on Strip, min	10 (Set to Touch) 30 (Tack Free)
Film Build, mils/side, ASTM D-115	1 – 1.5
Thinner (Solvent)	T-200X
Federal Specification, TT-P-1436, Free of After-Tack	1 Hour
VOC-bulk, lb/gal VOC-aerosol (calculated)	4.3 47%

Electrical:

Dielectric Strength, ASTM D 115, volts/mil

2,000 (Dry) 1,200 (Wet)

Chemical Resistance:

Water	Excellent
Acid (10% Sulfuric Acid)	Excellent
Alkali (1% Sodium Hydroxide)	Excellent
Salt Water	Excellent
Oil, ASTM D-115	Passed
Corrosive Effect on Copper	None

Thermal Class (UL-1446):

Twisted Pair

130 (MW-28)