Inflatable items—from pool toys to camping air mattresses—need reliable sealants that form a flexible, watertight barrier. The following spray sealants are designed to seal leaks, cracks, and seams quickly, creating a durable coating that remains flexible in varying temperatures. This guide highlights five top options, including clear and opaque finishes, to help you choose the right product for your inflatable repairs and repairs around the home.
| Product | Brand | Color / Finish | Size | |
|---|---|---|---|---|
| Gorilla Waterproof Patch & Seal Rubberized Sealant Spray | GORILLA | Crystal Clear | 14 oz | Waterproof, flexible seal, small gaps/cracks |
| Flex Seal Spray, Clear 14 oz | Flex Seal | Transparent | 14 oz | Waterproof coating, easy painting after dry |
| Gorilla Waterproof Patch & Seal Rubberized Sealant Spray | GORILLA | Black | 16 oz | Waterproof, flexible seal for larger applications |
| Gorilla Waterproof Patch & Seal Rubberized Sealant Spray | GORILLA | White | 14 oz | Waterproof, flexible seal, suitable for multiple surfaces |
| Alien Tape Sealant Spray 2Pk | ALIEN TAPE | Clear | 28 oz total | Heavy-duty sealant, waterproof and airtight |
Note: All products are formulated to dry to a flexible, watertight coating and are suitable for a variety of surfaces. For inflatables, surface prep (clean, dry, and free of oils) can improve adhesion and longevity of the seal.
Gorilla Waterproof Patch & Seal Crystal Clear 14 oz

Seals out water, air, and moisture with a flexible rubberized coating designed to stop leaks. The controlled spray pattern provides a clean, even coat, and self-leveling properties help cover small gaps. When dry, it resists temperature and UV exposure for lasting repairs on inflatables and other surfaces.
Flex Seal 14 oz Clear — Stop Leaks Instantly

The easy way to coat, seal, and protect. Dries transparent and can be painted any color. It seeps into cracks and holes and forms a flexible, rubberized coating that remains pliable for years, making it suitable for inflatables and other repair projects.
Flex Seal 14 oz Black — Stop Leaks Instantly

Coats, seals, and protects with a watertight, flexible finish. Dries to a black, rubberized coating that remains pliable over time, suitable for repairs on roofs, gutters, pools, and inflatables where color matching is desired.
Gorilla Black 16 oz Waterproof Patch & Seal

Seals out water, air, and moisture with a durable rubberized coating. The spray pattern ensures a clean, even coat; self-leveling properties close small gaps and cracks for a watertight seal. Temperature and UV resistance contribute to enduring repairs on inflatables and other items.
Gorilla White 14 oz Waterproof Patch & Seal

Designed to seal out water, air, and moisture with a clear, self-leveling coating. It covers gaps and cracks effectively and offers UV resistance for long-lasting repairs on inflatables, boats, and other gear. The nozzle delivers a controlled spray for even coverage.
Alien Tape Sealant Spray 2Pk — Heavy Duty

A heavy-duty liquid sealant spray for robust leakage protection. Forms a waterproof and airtight barrier when applied and dries to a clear finish. Easy to apply by spraying onto the surface and allowing it to dry for quick repairs on inflatables and other materials.
Buying Guide: Key Purchase Considerations
- Material compatibility: Check if the sealant bonds well with vinyl, PVC, rubber, or fabric commonly used in inflatables. Some coatings excel on metal or wood but may be less effective on plastics.
- Finish and color: Clear or white finishes are ideal for maintaining appearance on inflatables. Black or opaque options may better conceal repairs on dark surfaces.
- Flexibility and cure time: A flexible, rubberized coating handles expansion and contraction. Consider cure times that fit your repair schedule—quicker cures offer faster usability.
- Water and UV resistance: For outdoor inflatables, select products rated for outdoor exposure and UV resistance to prevent browning or cracking over time.
- Application ease: Sprays with controlled nozzles provide even coverage and reduce drips. Look for self-leveling formulas for better seam filling.
- Surface prep: Ensure surfaces are clean, dry, and free of oils. Wipe with isopropyl alcohol if needed and allow full cure before inflation.
- Safety and ventilation: Use in a well-ventilated area and wear protective gear if recommended by the manufacturer. Follow all handling instructions.
- Longevity and maintenance: Some sealants stay pliable for years, while others may require reapplication after exposure to harsh conditions. Consider climate and usage frequency.
- Warranty and compatibility notes: Review any manufacturer guidance on compatible materials and warranty coverage for specific uses on inflatables.
Choosing the right spray sealant depends on the material, exposure, and repair scale. For inflatable repairs, prioritize a flexible, waterproof finish that adheres well to vinyl or rubber and remains pliable with temperature changes. The products listed above offer a range of colors and performance levels to accommodate different inflatables and repair needs.