Dicor RV Roof Bonding Adhesive — 1 Gallon Water-Based Acrylic for EPDM & TPO, ~160 sq ft Coverage

Dicor 901BA-1 is a water-based acrylic bonding adhesive formulated for adhering and sealing EPDM and TPO RV roofing materials, delivering about 160 sq ft of coverage per gallon.

Designed for RV roof repairs and installations, this one-gallon, environmentally friendlier adhesive provides consistent spread and good tack on moisture-absorbent substrates. It’s intended specifically for use with single-ply rubber (EPDM) and thermoplastic (TPO) membranes where a strong, flexible bond is required. Because it’s water-based, cleanup is easier than solvent systems and it reduces strong odors during application.

How does Dicor 901BA-1 perform on typical RV roof materials?

This adhesive bonds well to porous, moisture-absorbent roofing substrates and is engineered for EPDM and TPO membranes. It is not suitable for metal, fiberglass, or membrane-to-membrane seams—using it on unsupported surfaces will reduce bond strength and durability.

• Best for EPDM rubber and TPO single-ply roofing surfaces.
• Not recommended for direct application to metal or fiberglass panels.
• Avoid membrane-to-membrane applications; use compatible Dicor seam products instead.

What coverage and application results should I expect from one gallon?

One gallon covers roughly 160 square feet under normal application thickness, making it practical for patching or medium-sized roof areas. Actual coverage depends on substrate texture and how thickly the adhesive is applied; rougher surfaces use more product.

• Estimated coverage: ~160 sq ft per gallon under standard conditions.
• Spread rate varies with surface porosity and application thickness.
• Use a consistent trowel or roller technique for even adhesion and predictable coverage.

What are the handling, safety, and cleanup advantages of a water-based formula?

Because this is a water-based acrylic, it has milder odors and easier cleanup than solvent-based adhesives, and tools can be rinsed with water before the product cures. It still requires standard safety precautions—use gloves and eye protection and follow ventilation recommendations while applying.

• Milder smell compared with solvent adhesives, improving comfort during application.
• Tool cleanup with soap and water before product cures; follow disposal rules for cured material.
• Follow manufacturer safety data sheet for PPE and ventilation requirements.

How should I prepare surfaces and apply the adhesive for reliable results?

Prepare the roof by cleaning, drying, and removing loose debris, oils, and contaminants so the adhesive contacts clean substrate. Apply at recommended thickness using a trowel, roller, or brush, then allow proper cure time before exposing the area to traffic or weather.

• Clean surface thoroughly; remove dirt, oils, and old adhesive residues.
• Ensure substrate is dry and free of standing water before application.
• Apply evenly with roller or trowel; follow Dicor guidance on open time and cure.

Who is this product for? Dicor 901BA-1 is aimed at RV owners, roof technicians, and maintenance professionals who need a reliable, water-based adhesive for EPDM/TPO roof repairs and installations. It’s attractive to buyers wanting easier cleanup and less odor than solvent adhesives, while still achieving professional-grade bonding on compatible single-ply roofing materials. Do not select this product for metal or fiberglass roofing, or when bonding one membrane directly to another—those situations require different Dicor products or mechanical fastening systems.