MAX EPC A/B is a room temperature cured epoxy-based electronic potting compound designed for large mass potting or encapsulation of printed circuit boards & circuits.
MAX EPC A/B is designed to cure slowly for potting large volumes, up to 40 fluid ounces or 1.2 liters. The exothermic heat produced is not enough to produce a "runaway" reaction during cure. MAX EPC is filled with thermally conductive fillers that wicks heat away and allows for faster cooling.
MAX EPC A/B is mixed 4:1 by weight; it provides a 90-minute working time for volumes of 3 cubic inches & up to 45 minutes for larger mass - up to 6 cubic inches.
Its mixed viscosity is 3100 cPs at 25°C, similar to the consistency of syrup or honey. It is poured into place, self-leveling, and designed to release air bubbles and cure void-free.
Upon cure, MAX EPC is electrically non-conductive and provides a permanent barrier against air, corrosive environments, moisture, and direct contact with the circuitry. The high thermal conductivity prevents heat build-up by dissipating heat energy more efficiently.
MAX EPC A/B bonds to metals, FRP, ABS, PVC, Plastisol, and other plastic compounds used in wire jacketing and electrical enclosures.
MAX EPC is opaque black that offers permanent masking of proprietary circuits & components. MAX EPC is tough and impact-resistant that demonstrates high compressive strength, and is resistant to acids, bases, and solvents.
MIX RATIO: 4:1 By Weight
WORKING TIME: 90 Minutes @ 25°C
CURE TIME: 48 Hrs @ 25°C
ACCELERATED CURE: 2Hrs @100°C
HARDNESS: 85 Shore D
VOLUME RESISTIVITY: 1 x 10 exp16 Ω/CM
DIELECTRIC STRENGTH: 500V/mil
THERMAL CONDUCTIVITY:0.72 W/(m•K)
SERVICE TEMPERATURE: -20°C to 110°C