Hard Coat System Process is made up of 2-ply black paper, equalling 30 weight, with 20 guage metal lath stapled and then nailed over black paper. All edges are outlaid in a metal 'J'-channel, the standard is a 3/8" thick coat. Fiber meshed concrete is mixed with sand in a mixer and then applied over lath to form a base coat, or as it is refered to as a "brown coat". A seven day curing period is then given for cracking and expansion. At that point, a final color acrylic coat will be put on for a finished product. All doors and windows are left with a 3/8" gap for caulking purposes.
These products are made by El Rey, Omega, La Habra and Dryvit.
