Liquid Rubber RV Lap Sealant, 10 oz tube

The #1 way to seal your roof seams and vents – Liquid Rubber RV Lap Sealant with before and after photos

Premium sealant on a durable RV roof contrasted with a cheap sealant cracking, peeling, and failing at joints.

Sealing RV roof vents with Liquid Rubber RV Lap Sealant, shown in close-up and aerial views.

Liquid Rubber RV Lap Sealant being applied around a black RV roof vent with a caulk gun.

Two 10 oz Liquid Rubber RV Lap Sealant white caulk tubes yielding 25 linear feet per 1/4-inch bead

Trailer with a garden porch and a Liquid Rubber coated roof

RV skylight sealed with white Liquid Rubber RV Roof Coating

RV roof coated with white Liquid Rubber RV Roof Coating

Two tubes of Liquid Rubber RV Lap Sealant

Four tubes of Liquid Rubber RV Lap Sealant

RV Lap Sealant

$19.95

Seals Vents, and Skylights on Your RV Roof.
Self-leveling formula flows for neater application.
Safe Indoors and Outdoors.
Low odor, no harsh fumes;. Use in enclosed spaces.
Apply and Walk Away.
Easy application with a standard caulking gun.

Quantity

Free shipping on US orders over $49.95+

Free Returns

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Product Overview

About RV Lap Sealant

Your RV roof protects you on every adventure, but cracks around vents, peeling seams, or interior water stains are warning signs you can't ignore. You worry about leaks causing expensive damage, dealer repair costs, and whether you can tackle it yourself. But what if sealing those leaks was actually simple?

Liquid Rubber RV Lap Sealant makes waterproofing your RV roof effortless. Use a caulking gun to apply directly to roof seams, vents, skylights, and roof joints for an instant seal. This self-leveling, moisture-curing formula is designed for flat, horizontal RV roof surfaces and creates a flexible, waterproof barrier that moves with your RV through temperature changes and road vibrations.

Say goodbye to costly repairs and hello to a protected, watertight RV with Liquid Rubber RV Lap Sealant—the DIY-friendly solution that seals roof leaks.

Looking for a clear sealant for vertical seams, side windows, or other non-roof areas of your RV? Liquid Rubber Sealant & Adhesive is a non-sag option that comes in clear and can be used along the sides of RVs.

Customer Success Stories

Real customers using RV Lap Sealant

RV roof vents and fixtures before resealing

RV roof vent sealed with Liquid Rubber RV Lap Sealant

Looks Great

Easy to Use. We gave our vents a fresh coat of of Lap Sealant to make sure the inside of our RV stays Dry

Lauren HadleyRV Lap Sealant

APPLICATION & COVERAGE

How to Use RV Lap Sealant

Application Guide RV Lap Sealant Detailed steps to complete your project.
Application Guide RV Roofs Detailed steps to complete your project.
Safety Data Sheet RV Lap Sealant Stay informed and safe throughout your project.
Technical Data Sheet RV Lap Sealant Get the technical details you need.
Coverage RV Lap Sealant

Project Gallery

RV Lap Sealant Gallery

See what RV Owners are doing

Frequently Asked Questions

Questions about RV Lap Sealant

What tools do I need to use with RV Lap Sealant?

A utility knife to cut the tube and a standard caulking gun is all you need. You will also need to pierce the inner seal of the tube.
Can I use RV Lap Sealant to seal side windows?

No. Because RV Lap Sealant is self-leveling, it will flow into cracks and crevices to provide a superior seal. This is meant for horizontal surfaces only, and will not work well on vertical areas.
How long does it take to get my order once I have placed it?

US - Delivered in 3-5 business days
CAN - Delivered in 3-7 business days
Can I coat over RV Lap Sealant?

Yes. You can coat over RV Lap Sealant after allowing the Lap Sealant to cure for 24 hours.