Liquid Rubber RV Roof Sealant - White 1 Gal Elastomeric Waterproof Coating for Campers & Trailers

Liquid Rubber RV Roof Sealant is a water-based, white elastomeric coating that creates a flexible, waterproof membrane to protect camper and trailer roofs. Liquid Rubber’s RV roof coating is formulated to repair and protect a range of RV roof surfaces including EPDM, TPO, fiberglass and aluminum. The product rolls on like paint, reflects solar heat to reduce roof temperature, and pairs with primers, seam tape and lap sealants to form a complete watertight system. It’s designed for DIY weekend projects and professional repairs alike, offering a low-VOC, water-based option that can be applied with a brush, roller or sprayer.

How does this sealant stop leaks on different RV roof materials?

The coating cures into an elastomeric membrane that bridges small cracks and gaps while remaining flexible as the roof expands and contracts. For optimal adhesion on EPDM and TPO, use the recommended Liquid Rubber EPDM & TPO Primer. Combined with seam tape and lap sealant at transitions, it creates a unified barrier across common leak points.

• Forms a continuous, flexible layer to cover pinholes and hairline cracks.
• Compatible with EPDM, TPO, fiberglass and aluminum when prepared correctly.
• Use primer on EPDM/TPO and seam tape on joints for best results.

What performance and coverage can I expect from one gallon?

One gallon typically rolls on to cover about 50 sq ft at the manufacturer’s recommended thickness, and a full 1–5 gallon pail is sized to cover a 30-foot RV. Coverage varies based on surface profile and application method, so plan accordingly and keep extra material for touch-ups or high-wear areas.

• Approximate coverage: 1 gallon per 50 sq ft at target thickness.
• 1–5 gallon pail commonly enough for a 30-foot RV roof when applied per instructions.
• Store sealed containers above freezing for future maintenance touch-ups.

How easy is the product to apply for someone doing a weekend repair?

This is intended as a straightforward weekend project when paired with Liquid Rubber’s RV Smart Cleaner and EPDM & TPO Primer. No special tools are required—apply with a standard brush, roller or airless sprayer between 50°F and 90°F (10°C–32.2°C) for best results. Follow surface prep, joint treatment and cure-time recommendations to achieve a long-lasting membrane.

• Three-step system: clean, prime (if needed), coat.
• Apply with brush, roller or sprayer; suitable for DIY and professional users.
• Recommended application temperature range: 50°F–90°F (10°C–32.2°C).

Does this coating help reduce interior temperatures or energy use?

The bright white, elastomeric finish reflects more solar energy than darker roofs, helping to limit heat absorption at the surface. While results depend on roof condition, climate and insulation, the coating is designed to improve solar reflectivity as part of overall temperature-management strategies.

• White finish increases solar reflectivity compared with darker surfaces.
• Can be part of a broader effort to reduce heat transfer into the RV.
• Best results when the roof is clean, well-sealed, and in good condition.

Who is this for? This product suits RV owners, camper DIYers and mobile-home technicians who need a durable, flexible roof coating that’s easy to apply and integrates with a full sealing system. It’s ideal for routine maintenance, patching aging roofs, or performing a full recoat when you want a water-based, low-VOC option that works across multiple roof substrates. If you want to combine waterproofing with improved solar reflectivity and the ability to perform repairs yourself over a weekend, this sealant is formulated to meet those needs when used with recommended primers and accessories.

FAQ

Q: Is this safe to use on EPDM and TPO roofs?

A: Yes; use Liquid Rubber EPDM & TPO Primer first for best adhesion, then apply the RV roof coating as directed.

Q: How long does one gallon typically last on an RV?

A: One gallon usually covers about 50 sq ft at the recommended thickness; a 1–5 gallon pail commonly covers a 30-foot RV.