Transparent Waterproof Sealant 175oz Clear Coating - Invisible

Our review of this Transparent Waterproof Sealant finds it ideal for DIYers and pros who need a clear, long-lasting barrier against water and moisture. The biggest reason to choose this product is its invisible, non-yellowing finish that cures to a flexible membrane and preserves surface appearance while blocking water infiltration. Easy to apply and formulated to adhere to many building materials, it is best used where maintaining the look of the substrate matters as much as preventing leaks.

Key Features

• Invisible Waterproofing: Creates a clear, non-yellowing membrane that protects surfaces without altering color or texture.
• Upgrade Water-Based Formula: Cures into a durable sealant film that resists air, water, and moisture and improves stability over time.
• Flexible, Long-Lasting Seal: Self-leveling liquid fills small gaps and remains flexible to resist substrate movement and deformation.
• Excellent Adhesion: Polyurethane-based coating promotes deep penetration and resists sagging on vertical surfaces.
• Wide Surface Compatibility: Bonds to concrete, brick, metal, wood, roofs, gutters, window sills and other common indoor and outdoor materials.
• Generous Coverage: Each 175 oz container covers roughly 70 sq ft when applied in 2 to 3 protective layers, reducing repeat maintenance.

Who It's For

This transparent sealant suits homeowners repairing roof flashings, gardeners sealing planters, and contractors needing a clear waterproof layer on visible surfaces. It is particularly useful where preserving the original finish matters, such as on brick faces, concrete patios, and interior bathroom transitions.

Those who need a structural or gap-filling product for large voids should consider a thicker epoxy or dedicated gap filler first, since this liquid is intended for surface waterproofing and sealing small cracks and seams rather than structural repairs.

Pros & Cons

Pros

• Clear, non-yellowing finish preserves the look of materials while providing waterproofing.
• Good adhesion and flexibility reduces risk of cracking as surfaces expand and contract.
• Suitable for many indoor and outdoor surfaces, making it versatile for home and garden use.

Cons

• Curing is slowed below 10C/50F, so colder climates will need longer drying times.

Specifications

Our Verdict

This clear waterproof sealant is a strong value for anyone who needs invisible, long-lasting protection on visible surfaces. Its combination of non-yellowing finish, reliable adhesion, and multi-surface use makes it a practical solution for routine leak prevention and maintenance projects.

Frequently Asked Questions

How many coats are recommended?
Apply 2 to 3 layers for complete protection and best durability.

Can it be used outdoors on roofs?
Yes, it is formulated for both indoor and outdoor use and bonds to roof materials, but allow proper curing above 10C/50F.

Will it change surface appearance?
No, the product is designed to cure clear and non-yellowing so it preserves the original look of surfaces.