Gorilla Patch & Seal Liquid Rubber Waterproof Sealant - Crystal Clear

In this review of the Gorilla Patch & Seal Liquid Rubber Waterproof Sealant, the bottom line is straightforward: this product is for homeowners and DIYers who need a flexible, paintable coating to stop leaks and protect exterior surfaces. The reviewer found the single biggest reason to buy is its rubberized, self leveling formula that creates a watertight layer over small gaps and cracks, making it useful on roofs, gutters, flashing and PVC joints. It is easy to apply with a brush, roll, trowel or by pouring, and dries to a temperature and UV resistant finish for lasting repairs.

Key Features

• Flexible rubberized coating: Provides a stretchable seal that moves with surfaces to reduce recurring leaks and maintain adhesion.
• Self leveling formula: Smoothly covers small gaps and cracks so the sealant forms a continuous watertight surface after application.
• Multiple application methods: Can be applied by brush, roll, trowel, dip or pouring to suit different repair types and skill levels.
• Paintable finish: Accepts both latex and oil based paints, with a primer recommended for oil based coatings, for a finished look after repair.
• Temperature and UV resistant: Dries to a coating that resists sun exposure and temperature swings for longer lasting outdoor repairs.
• Versatile substrate use: Works on metal, concrete, wood, aluminum, brick, tile, glass and more for broad exterior applications.

Who It's For

The sealant is aimed at homeowners, handypersons and RV owners who need a clear, flexible membrane for exterior leak repairs on roofs, gutters, skylights, chimneys and PVC pipe joints. It is also useful for DIY projects where a paintable, UV resistant finish is desirable.

Those who need a product for continuous submersion or for interior use inside a firebox or chimney stack should look elsewhere, and users working with some plastics or rubber substrates should test compatibility first since it may not bond to every material type.

Pros & Cons

Pros

• Creates a flexible, rubberized barrier that resists temperature and UV exposure.
• Self leveling action helps achieve watertight coverage over small cracks and gaps.
• Applies several ways so projects large and small can be completed without special equipment.
• Paintable for a finished appearance after repair with either latex or oil based paints (use primer for oil paints).

Cons

• Some customers report inconsistent drying and varied sealability after opening, so performance can depend on application and conditions.
• Not for continuous underwater use and may not adhere to all plastics or rubber types.

Specifications

Product	Gorilla Patch & Seal Liquid Rubber Waterproof Sealant
Finish	Crystal clear rubberized coating
Volume	32 ounce (pack of 1)
Application methods	Brush, roll, trowel, dip, or pouring
Paintable	Yes, works with latex and oil based paints (primer for oil)
Temperature & UV resistance	Resistant when dried for outdoor durability
Recommended uses	Roofs, gutters, flashing, chimneys, PVC joints, window seals, RV roofs

Our Verdict

For exterior leak repairs where a flexible, paintable and UV resistant membrane is needed, this sealant offers a practical value: it is easy to apply, self leveling and adheres to many common building materials. Buyers should accept that drying and adhesion can vary by surface and conditions, but for routine roof, gutter and joint repairs it is a cost effective option that produces durable, Gorilla tough results when used as directed.

Frequently Asked Questions

Can I use this sealant underwater?
No. This product is not intended for continuous submersion or below waterline use.

Is the dried coating paintable?
Yes. The dried rubberized coating accepts latex and oil based paints; use a primer when applying oil based paint.

Will it work on all plastics and rubber?
It adheres to many materials but may not bond to all types of plastics and rubbers; test a small area first.