Dicor RV roof bonding adhesive - 1 Gallon water-based acrylic for EPDM & TPO, low-odor 160 sq ft coverage

Dicor 901BA-1 is a water-based acrylic bonding adhesive formulated to bond and seal EPDM and TPO RV roof substrates with easy application and about 160 sq. ft. coverage per gallon.

This one-gallon, environmentally friendlier adhesive is designed specifically for moisture-absorbent roofing substrates used on recreational vehicles. It provides a low-odor, water-based formula that spreads smoothly and dries to form a strong bond without the flammability or heavy solvent smells of traditional adhesives. The product is not meant for metal, fiberglass, or membrane-to-membrane bonding—use it only where Dicor specifies EPDM or TPO compatibility.

How do I use Dicor 901BA-1 on an RV roof?

Prepare the substrate by cleaning and allowing it to dry, then apply the adhesive evenly to the roof and the component being bonded. Press the parts together firmly and allow adequate cure time per temperature and humidity conditions. Avoid application when rain or heavy moisture is expected until fully set.

• Clean surface of dirt, oil, and loose material before application.
• Apply with a brush, roller, or serrated spreader for uniform coverage.
• Maintain recommended temperatures and keep surfaces dry during cure.
• Not for metal, fiberglass, or membrane-to-membrane joints—use on EPDM and TPO only.

What surfaces and repairs is this adhesive appropriate for?

Dicor 901BA-1 is intended for moisture-absorbent substrates commonly found on RV roofs, specifically EPDM and TPO materials. It bonds patches, trims, vents, and small accessories to those membranes but should not be used where both mating surfaces are membrane to membrane or on rigid metal or fiberglass panels.

• Compatibility: EPDM and TPO roofing membranes.
• Typical uses: flashing, vent collars, trim, seam repairs where substrate is absorbent.
• Not suitable: metal roof panels, fiberglass skins, or membrane-to-membrane sealing jobs.
• Coverage: approximately 160 sq. ft. per gallon under normal application.

How much will one gallon cover and how should I plan my project?

Expect about 160 square feet of coverage from one gallon when applied at typical thickness for bonding and sealing. Actual coverage varies with surface texture and porosity, so plan for slightly less on highly absorbent or rough surfaces. For larger projects, order extra to allow for waste, overlaps, and multiple passes.

• Estimated coverage: ~160 sq. ft. per gallon.
• Porous or textured surfaces use more adhesive; smooth consistent surfaces use less.
• Allow for overlaps, seams, and patching when calculating total need.
• Store partially used containers tightly sealed and use within recommended shelf life.

Why choose a water-based adhesive like Dicor 901BA-1?

Water-based acrylic adhesives reduce solvent odor and flammability compared with solvent-based products, making them easier to work with in confined RV spaces. They still deliver reliable bonding on compatible membranes while being more environmentally considerate. Proper surface preparation and application technique remain important to achieve best results.

• Lower VOCs and reduced odor versus solvent adhesives.
• Non-flammable formula improves onsite safety during application.
• Easy cleanup with water before cure.
• Designed specifically for EPDM and TPO membrane bonding tasks.

Who is this for: Dicor 901BA-1 is a practical choice for RV owners, installers, and repair technicians who need a water-based bonding adhesive for EPDM or TPO roof work. It suits routine maintenance, patching, and attaching roof accessories where a safer, low-odor product is preferred. If you need to bond metal or fiberglass panels or join membrane-to-membrane, choose a product specified for those conditions instead.