PRODUCT USES:

Recommended for well draining, SLOPED Bus & Recreational Vehicle roof surfaces. BUS-PRIME™ can also be used on a wide variety of other substrates including wood, shakes, plywood, clapboard, primed metal, galvanized, aluminum, tin, copper, asbestos, asphalt, urethane, polyester, primed styrofoam, fiberglass, built-up-roofs, rolled roofing, modified bitumen membranes, mineral surfaced roofing, primed synthetic or aluminum, adobe, slate, slab, properly prepared EPDM and various other substrates.

SURFACE PREPARATION:

A primer sealer coat of BUS-PRIME™ is required for the BUS-KOTE™ 10 YEAR LIMITED MATERIAL WARRANTY.
Apply only to a sound, completely clean and dry surface and free of all moisture. Leaks must be repaired before any coating is applied.
Prepare surface by thoroughly pressure washing with a water and chlorine mixture using at least 1500 P.S.I. to remove any previous coatings, dirt, grease, and other foreign materials, especially mold, mildew and algae. BUS-PRIME™ will resist mildew growth, but will not kill mildew already on the surface. Patch any holes, cracks, flashings, valleys, vents, etc., with PERMAPATCH™, a Waterproofing Caulk and Sealant. Tape & seal all seams with PERMATAPE™, a Polyester Fabric Tape.

Metal: Clean surface of all grease oil and foreign matter before priming or coating. Rusted metal and uncoated ferrous metals must be primed with METAL-PRIME RED-OX™, a Red Iron Oxide Primer Sealer. Use a degreaser on galvanized or coated metals which have oils or surface treatments.

Previously Coated Surfaces: Check BUS-PRIME™ adhesion on galvanized or coated metal or other previously coated surfaces by applying to a small area and evaluating after 48 hours. If lack of adhesion is present after evaluating, the surface must be sanded. If applicable, use METAL-PRIME RED-OX™ to spot prime the penetrated areas that are down to exposed bare metal.
APPLICATION PROCEDURE:

Stir well before using. Do not thin, use product as is. Do not apply when temperatures are below 45 degrees Fahrenheit or when humidity is very high. Do not apply when primer will be subjected to rain or heavy dew before it has had enough time to dry (approximately 2 to 4 hours). Drying time will vary depending on temperature, humidity & location. Apply using brush, roller or spray. Spread uniformly. Wait at least 12 hours before applying BUS-KOTE™. Be sure to coat over BUS-PRIME™ within 72 hours or surface may become contaminated.

Airless Sprayers: Use at least a 1 gallon per minute, piston type, airless sprayer with a minimum tip size of .021.

Clean Up: Clean up all spills, tools and overspray immediately while the coating is still wet with warm soapy water.