RV Waterproof Sealant 4.41LB – Flexible Clear Roof & Gutter Sealant Covers 160 Sq Ft | Multi-Surface Water-Based Coating for RV, Home & Outdoor Use | Includes Brush

RV Waterproof Sealant 4.41LB – Flexible Clear Coating for Roofs, Gutters, Windows & More

A heavy-duty 4.41LB waterproof sealant engineered for RV roofs, home gutters, windows, walls, and multi-surface applications. One container covers up to 160 square feet at 1/12” thickness, forming a flexible, transparent waterproof membrane that moves with the surface to prevent cracking. Includes an applicator brush for immediate use.

Key Features

• Large 4.41LB / 2000g Size – Covers up to 160 sq ft at 1/12” thickness — ideal for full RV roof treatments
• Flexible Formula – Accommodates surface movement and thermal expansion without cracking or peeling
• Transparent Finish – Cures to a clear, invisible waterproof membrane that blends with any surface
• Water-Based & Safe – Low-odor, easy water cleanup before curing
• Temperature Resistant – Withstands high and low temperature extremes for year-round outdoor performance
• Multi-Surface Adhesion – Bonds to RV roofs, wood, concrete, brick, metal, ceramic, tiles, and more
• Brush Included – Ready to apply straight out of the container

Specifications

Use Cases

• Full RV roof waterproofing and leak prevention
• Gutter and downspout crack sealing
• Roof tile and skylight waterproofing
• Basement and wall moisture barrier
• Window sill and chimney sealing
• Home renovation multi-surface waterproofing

How to Apply

1. Clean the surface and remove all loose debris
2. Apply sealant with included brush, roller, or by pouring; press firmly into gaps
3. Allow 2–4 hours to dry (apply in sunny, dry weather above 5°C/41°F)
4. Apply a second cross-coat after 24 hours for maximum waterproofing
5. Full cure in 24 hours — long-lasting, flexible protection for years