BUS-PRIME™

PRODUCT DESCRIPTION:

BUS-PRIME™ is a Transparent White, Elastomeric Acrylic Waterproofing Adhesive, Bus & Recreational Vehicle Roof Primer Sealer. It is a waterborne high resin content formula that contains no fillers so that it provides waterproofing and excellent adhesion to most any surface. BUS-PRIME™ is designed as the Primer Sealer for the BUS-KOTE™, Bus & Recreational Vehicle Coating System. This easy to apply Bus and Recreational Vehicle Coating System will provide many years of durable protection and outstanding beauty. BUS-PRIME™ when used in conjunction with BUS-KOTE™ RV Roof Coating offers a 15 YEAR LIMITED MATERIAL WARRANTY when applied to manufacturer’s specifications.

BUS-PRIME™ rejuvenates, revitalizes, restores, and strengthens the surface to which it is applied. A high resin content, plus the addition of special adhesive chemicals, enables BUS-PRIME™ to bond and seal the surface together preparing it for the application of BUS-KOTE™. Excellent penetrating characteristics enable BUS-PRIME™ to permeate into the substrate providing a permanent bond to the finish coat. On non-porous substrates, the high resin content provides excellent adhesion to the surface forming a tight bond to the finish coat. The bond that is formed between BUS-PRIME™ and the finish coat eliminates any possibility of moisture under the finish coat extending the life of the coating considerably.

The BUS-PRIME™ and BUS-KOTE™ formulas were initially designed as an insulating reflective coating system for School Districts to use on the roofs of school buses with no air conditioning to help in lowering the interior temperatures of buses. This energy saving coating system combines reflectivity and ceramic insulation to reduce interior temperatures when hot and make interior temperatures more constant when cold. It is formulated to resist over 100 M.P.H. wind driven rains.

When it comes to protecting your RV, choosing the right coating for the roof is essential. Roof coatings for campers not only enhance durability but also improve energy efficiency. For those looking to paint their RV roof, options like acrylic coating for roofs and elastomeric roof coatings stand out for their longevity and effectiveness. Products such as liquid rubber roof coatings and best white roof coatings provide excellent UV protection and reflectivity. If you’re considering a DIY approach, using a roll-on roof sealant can simplify the application process. For optimal results, ensure you select high-quality roof paint sealants and familiarize yourself with how to apply elastomeric roof coating. With the right roof coating materials, you can achieve a seamless finish that not only looks great but also extends the life of your RV roof.

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.