Flex Seal MAX 17 oz Clear – Instant Leak Sealant for Gutters, Roofs, RVs & More

Overview

Flex Seal MAX 17 oz Clear is a versatile waterproof rubber spray‑on sealant designed to stop leaks quickly. The clear formula coats surfaces with a flexible, rubberized film that seeps into cracks and holes, forming a watertight barrier as it dries. Once cured, the coating can be painted to blend with the project’s color, helping protect materials without altering their appearance.

Why this matters

Leaks can appear in gutters, roofs, skylights, windows, and even around wood or exterior RV surfaces. A spray sealant that dries clear and remains pliable offers a practical, wide‑ranging solution for moisture control. The formula is designed to resist sagging in hot weather and cracking or peeling in cold conditions, which means fewer interruptions to your routine and fewer touch‑ups over time.

• Seals cracks and holes by seeping into gaps, forming a tight, rubberized film that stays flexible for years.
• Dries clear and paintable, so you preserve the surface’s look while adding protection.
• Ideal for arts, crafts, projects, and hobbies where a quick, durable seal is helpful.
• Designed to resist seasonal temperature changes—no sagging in heat, no cracking in cold.

Common applications include gutters, roofs, wood, RVs and campers, skylights, windows, and other high‑moisture or high‑traffic areas. The coating provides a flexible seal that moves with surfaces without losing adhesion, helping to reduce the likelihood of new leaks forming around joints and seams. Clear and unobtrusive, it blends with most materials while delivering a protective barrier against water ingress.

Key benefits at a glance

• Fast, easy sealing to protect surfaces from leaks and moisture.
• Flexible, rubberized coating that endures environmental stress and lasts for years.
• Clear, paintable finish that preserves appearance while adding protection.
• Broad range of potential uses—from gutters and roofs to RV exteriors and windows.

How to use (high level)

Shake well and sweep a light, even coat onto clean, dry surfaces. Apply to seams, cracks, and holes, then allow the coating to cure. When fully dry, you can paint over the seal to match surrounding surfaces if desired. For best results, use in a well‑ventilated area and follow the curing times indicated on the product packaging.