DESCRIPTION

INSULCAST 520 is a very low viscosity, two-component, epoxy curing varnish, designed for lightly coating printed circuit boards, ceramic substrates and plastics, and to quickly penetrate coils and transformers. It is thinned in solvents to keep the viscosity low for best penetration. The one to one ratio allows rapid preparation of the mix. Curing can be done at room temperature or at elevated temperature. The resultant tough film displays excellent adhesion to glass, wood, ceramic and most metals and plastics. INSULCAST 520 finds wide use as a conformal coating of printed circuit boards prior to potting, or to protect stuffer "cards" from environmental moisture, dust and corrosive or oily contamination.

USE INSTRUCTIONS:

1. Mix equal volumes of Parts A & B. Stir thoroughly, taking care to scrape sides and bottom of container.
2. For brushing or dipping, use as is. For spray applications, thin to the appropriate viscosity with a suitable solvent, such as lacquer thinner.

CURE SCHEDULE:
ROOM TEMPERATURE (25°C): INSULCAST 520 becomes dust free within 20 to 40 minutes and tack-free in 1.5 to 2 hours. It is hard within 24 to 72 hours. Ultimate hardness and physical and chemical properties develop in 3 to 5 days.

FAST CURE: Accelerated cure can be achieved by use of heat. Allow the wet film to air dry (to permit solvent evaporation) for 30 minutes to one hour before heating.
50°C: 1 1/2 to 2 hours
65°C: 45 minutes to 1 hour
70°C: 20 to 30 minutes
95°C: 15 minutes
120°C: 5 to 6 minutes
NOTE: If the higher temperatures are applied before the solvents have evaporated, "popping" or blistering may result.

IMPORTANT:
The following supersedes any provision in your company's forms, letters and papers. AMERICAN SAFETY TECHNOLOGIES, INC. makes NO WARRANTY, WHETHER EXPRESSED OR IMPLIED, INCLUDING WARRANTIES of MERCHANTABILITY OR of FITNESS FOR A PARTICULAR PURPOSE FOR THIS PRODUCT. No statements or recommendations contained in the product literature are to be construed as inducements to infringe any relevant patent, now or thereafter in existence. UNDER NO CIRCUMSTANCES SHALL AMERICAN SAFETY TECHNOLOGIES, INC. BE LIABLE FOR INCIDENTAL, CONSEQUENTIAL OR OTHER DAMAGES FROM ALLEGED NEGLIGENCE, BREACH of WARRANTY, STRICT LIABILITY OR ANY OTHER THEORY, ARISING OUT of THE USE OR HANDLING of THIS PRODUCT. The sole liability of AMERICAN SAFETY TECHNOLOGIES, INC. for any claims arising out of the manufacture, use or sale of its products shall be to refund the buyer's purchase price, provided such products have been demonstrated in AMERICAN SAFETY TECHNOLOGIES, INC. sole opinion, to justify such refund.

HEALTH CAUTION:
Avoid breathing possible fumes, mists and vapors which can cause severe respiratory damage. Use of NIOSH approved breathing apparatus is required for more than minimal exposure. Always work in areas with adequate ventilation to allow dissipation of polyamine and other chemical fumes, and where applicable, solvent fumes. Use of goggles, protective garments, rubber gloves, protective cream is required. If material gets into eyes, flush thoroughly with clear water for twenty (20) minutes; then seek medical treatment. Avoid skin contact. Material can cause contact dermatitis. Always wash exposed areas immediately, using warm water and soap, followed by rinsing with clean water. Observe all safety precautions. It is important when using solvent based materials or solvents to keep away from open flame or ignition source.

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