Marlin Coatings Silicone Roof Sealant — 1 Gallon White, Self-Leveling Waterproof with UV & Ponding Resistance

Marlin Coatings 100% Silicone Roof Sealant is a self-leveling, single-coat waterproof membrane formulated to seal and protect RVs, campers, trailers and commercial roofs with long-lasting UV and ponding-water resistance.

If you need a durable, reflective topcoat that bonds to many common roofing substrates—EPDM, TPO, PVC, spray foam, fiberglass and metal—this silicone formula provides a flexible, non-shrinking barrier designed for straightforward application by brush, roller or high-pressure spray. The bright-white, highly reflective finish helps reduce roof heat gain while the silicone chemistry resists degradation from sun and standing water so you don't recoat every few years.

How quickly can I waterproof my roof with this sealant?

Marlin’s silicone is designed for single-coat coverage in most applications, cutting down labor and return visits. Typical coverage is about 60 square feet per gallon, and the self-leveling nature helps create a smooth, continuous membrane over seams and fasteners when applied correctly.

• Apply by brush, roller or spray (spray requires minimum 6,000 psi pump).
• One coat is usually enough for repair or preventative sealing.
• Approximate coverage: 1 gallon ≈ 60 sq ft depending on surface texture and porosity.

Which roof materials will this silicone adhere to?

This product bonds to a wide range of common roof surfaces, making it versatile for RVs, trailers and many commercial roofs. Proper cleaning and preparation are important to ensure adhesion and a continuous waterproof layer.

• Compatible with EPDM rubber, TPO, PVC, fiberglass, metal and spray foam.
• Remove loose debris, oils, and loose coatings before application.
• For best results, follow substrate-specific prep and priming recommendations.

Will this coating stand up to sun and standing water?

Yes—Marlin’s formula was developed for long-term resistance to UV exposure and ponding water without breaking down or shrinking. The bright-white finish has a high solar reflectance which helps reduce roof surface temperature and can contribute to lower interior cooling loads.

• High Solar Reflective Index (113) for reduced heat absorption.
• Flexible, non-shrinking membrane that resists cracking under movement.
• Formulated to tolerate ponding water that often degrades inferior coatings.

How should I apply and maintain this silicone top coat?

Application is straightforward but depends on the method: brush or roll for small repairs, or high-pressure spray for larger areas. After cleaning and masking, apply in consistent thickness; the material is self-leveling, so a wet, even coat will form a continuous membrane as it cures.

• Clean surface thoroughly; remove mildew, dirt and loose materials.
• Use brush/roller for detail work and a 6,000 psi+ pump for spray application.
• Allow recommended curing time before exposing to foot traffic or water.

Who is this for? This silicone roof sealant is aimed at RV and camper owners, fleet managers, trailer builders and commercial property caretakers who want a long-lasting, single-coat waterproofing solution that reduces roof heat gain. It’s also useful for DIYers who need a reliable patch-and-seal product and for contractors seeking a reflective, durable topcoat that minimizes recoat cycles. For best results, choose Marlin Coatings when you want a flexible, UV-stable, self-leveling membrane that covers a variety of roofing materials and simplifies maintenance.