Best Spray Sealant For Inflatables: Compare 8 Sealants

#1 · Best Overall

1. Flex Seal Clear Spray Sealant

• Weight: 1.1 lb
• Compatible Material: Polyvinyl Chloride, Rubber
• Form: Spray
• dimensions: 10 x 2.75 x 2.75 in

Best for: Clear coating for PVC and rubber.

Why it ranks #1: Its compatible-material specification names polyvinyl chloride and rubber, and the listing describes a flexible, watertight coating in a clear 17-ounce format.

Flex Seal’s clear rubberized coating is listed as compatible with PVC and rubber, giving inflatable owners a material match to consider for water-sealing repairs. It seeps into cracks and holes before drying flexible, and the two-can listing provides more than one application can for repair work.

The liquid spray seeps into cracks and holes, then dries into a watertight, flexible rubberized coating, so it can address small leak paths without relying on a rigid finish. PVC and rubber are both listed compatible materials, directly relevant to many inflatable surfaces. The coating is also described as resisting summer sagging or dripping and winter cracking or peeling, useful where repairs face changing weather. The clear finish keeps color alteration less conspicuous than a white or black coating.

Skip it if you need a white visible coating; Flex Seal 14 oz White is the listed color option for that repair.

This Flex Seal suits owners seeking clear spray coverage on PVC or rubber inflatables and a flexible finish over cracks. Choose with care if appearance matters: the coating is clear, and the supplied details do not give inflatable-specific application instructions.

Listed on Amazon as: Flex Seal Spray Rubber Sealant Coating, Waterproof, Clear, 17 oz, 2-Pack

#2 · Rubber-Compatible

2. Gorilla Waterproofing Sealant Spray

• Weight: 14 oz
• Compatible Material: Concrete, Glass, Metal, Plastic, Rubber
• Form: Spray
• dimensions: 2.5 x 2.5 x 9 in

Best for: Flexible coating for small repairs.

Why it ranks #2: The listed compatible materials include rubber and plastic, and its flexible rubberized coating is described as sealing water, air, and moisture.

A controlled spray pattern and self-leveling rubberized coating help Gorilla cover small gaps and cracks with an even, watertight layer. Its listed compatibility includes plastic and rubber, making it a practical option to consider for targeted inflatable repairs where a flexible clear finish is appropriate.

The nozzle’s controlled pattern supports a cleaner, more even application, while the self-leveling coating smooths over small gaps and cracks to form a watertight seal. Its rubber material and listed compatibility with plastic and rubber connect it to common inflatable materials. The dried coating is described as temperature- and UV-resistant, which may suit equipment used outdoors. The instructions call for shaking well and spraying from 8 to 12 inches away, so application distance matters.

Skip it if you need a white finish for visible repairs; Flex Seal 14 oz White offers a listed white coating.

For inflatable owners patching small leaks on listed plastic or rubber surfaces, Gorilla offers a flexible, clear spray with controlled application. It is a less suitable match when the repair needs to blend with an opaque, colored surface.

Listed on Amazon as: Gorilla Waterproofing Sealant Spray, Clear, 16 oz, Flexible Rubberized

#3 · PVC-Compatible

3. Flex Seal White Spray

• Weight: 14 oz
• Compatible Material: Asphalt, Metal, Polyvinyl Chloride
• Form: Spray
• dimensions: 9.5 x 2.5 x 2.5 in

Best for: White coating for visible repairs.

Why it ranks #3: Its compatible-material list includes polyvinyl chloride, and the product forms a flexible, watertight rubberized coating; its white finish may show on colored inflatables.

Flex Seal’s white rubberized spray can be used on wet or dry surfaces, giving repairers a listed option when an inflatable patch needs a white finish. It seeps into cracks and holes, then dries flexible and watertight, while the product’s RV and camper applications connect it to mobile equipment use.

The spray seeps into cracks and holes before drying as a flexible, watertight coating, so the listed repair method addresses leak paths while retaining pliability. Wet-or-dry use gives some flexibility in surface condition during application, and the coating is described as resisting summer sagging and winter cracking or peeling. The title names RVs and campers among its applications, making it relevant to travel equipment. Its white color is a visible finish consideration on nonwhite inflatable surfaces.

Skip it if you want a clear finish on a colored inflatable; Flex Seal Clear 17 oz is listed as clear and compatible with PVC and rubber.

This white Flex Seal is a candidate for owners repairing white or light-colored inflatable surfaces, especially when wet-or-dry application is useful. Its opaque finish is the main fit consideration for repairs where color matching matters.

Listed on Amazon as: Flex Seal, 14 oz, White, Stop Leaks Instantly, Waterproof Rubber Spray On Sealant Coating, Perfect for Gutters, Wood, RV, Campers, Roof Repair, Skylights, Windows, and More

#4 · Outdoor Seams

4. WEICON Allround Sealing Spray

• Weight: 0.44 kg
• Compatible Material: Metal, Plastic, Rubber
• Form: Spray
• dimensions: 2.68 x 2.68 x 7.87 in

Best for: Weatherproof crack and seam sealing.

Why it ranks #4: The spray is described as waterproof and weatherproof for fine cracks and seams, with plastic and rubber among its compatible materials.

WEICON’s spray is specifically developed for fine cracks and seams indoors and outdoors, with waterproof and weatherproof properties. Its stated compatibility includes plastic and rubber, making it relevant to inflatable owners seeking a seam-focused coating, though the listed grey color may affect the appearance of a repair.

The sprayable liquid plastic adheres strongly to almost all surfaces, with plastic and rubber included in its compatible-material listing; that combination supports consideration for inflatable materials. Its development for fine cracks and seams provides a defined repair focus, while waterproof and weatherproof properties suit indoor or outdoor use. The coating is overpaintable, offering a route to adjust its grey finish after application. The product also protects metals from corrosion, though that benefit is most relevant to adjacent metal components.

Skip it if you need a clear coating for a less visible repair; Gorilla Waterproofing Sealant Spray is listed as clear and compatible with plastic and rubber.

WEICON suits buyers focused on fine seams or cracks in plastic or rubber and needing stated indoor-outdoor weather resistance. The grey, overpaintable finish is a consideration for inflatable surfaces where the original color should remain visible.

Listed on Amazon as: WEICON Allround Sealing Spray 400ml / 13.5oz | Waterproof Sealant for Indoor & Outdoor Use | Ideal for Boat, Car, Motorcycle, Caravan | Industrial Grade (Grey, 400ml / 13.5oz)

#5 · Two-Can Pack

5. Alien Tape Sealant Spray

• Compatible Material: Metal
• Form: Spray
• dimensions: 9.5 x 3 x 6 in

Best for: Two-can clear leak coverage.

Why it ranks #5: It is described as a waterproof, airtight liquid rubber sealant that dries clear, but its supplied compatible-material specification lists metal only.

Alien Tape supplies two cans of clear liquid rubber sealant, with the title listing a combined 28 ounces for leak-patching projects. The product description calls out waterproof and airtight sealing, while its flexible protective barrier makes it an option for inflatable owners considering a clear spray repair.

The liquid rubber spray is described as forming a durable protective barrier that stops leaks, while its waterproof and airtight sealing claims address the two concerns most relevant to an inflatable repair. The title says it works on most materials, though the specification’s compatible-material field specifically names metal, so buyers should weigh that listing when considering a rubber or PVC item. The clear-drying finish helps avoid adding an opaque color layer, and the two-can supply supports more than one repair session.

Skip it if you want explicitly listed rubber compatibility; Flex Seal Clear 17 oz lists both rubber and PVC as compatible materials.

Alien Tape may suit buyers prioritizing a clear, two-can sealant for leak repairs and a stated waterproof, airtight barrier. Its material listing is a key boundary for inflatable use: the specification names metal, rather than rubber or PVC.

Listed on Amazon as: Alien Tape Sealant Spray 2Pk, Waterproof and Air Tight Liquid Rubber Spray Seals, Prevents and Patches Leaks, Protects Surfaces, Works on Most Materials, Long Lasting, Dries Clear – 2 Cans (28 Oz)

#6

6. Flex Seal Mini Black Spray

• Weight: 3.2 oz
• Compatible Material: Rubber
• Form: Spray
• dimensions: 5.25 x 1.75 x 1.75 in

Best for: Portable small-area touch-ups.

Why it ranks #6: The 2-ounce portable can is convenient to carry, and the listing says the coating stays flexible, but its compatible-material specification names rubber only.

Flex Seal MINI puts a flexible rubberized spray in a portable 2-ounce can, enabling a compact touch-up kit for small leak repairs away from home. It sprays as a liquid and dries as a strong coating, while its listed compatible material is rubber and its finish is black.

The aerosol sprays as a liquid and dries into a flexible, pliable rubberized coating, giving small repair work a sealant that is not described as rigid. Its lightweight, portable format makes it easy to carry for on-the-go use, and the black finish is a defined choice for dark surfaces. Rubber is the listed compatible material, relevant to some inflatables. At 2 ounces, the can is better matched to limited touch-ups than broad-area coating work.

Skip it if you need more coating for a larger repair; Flex Seal Clear 17 oz provides a larger listed can and PVC compatibility.

Flex Seal MINI suits owners wanting a compact black spray for a small rubber-surface touch-up while traveling. Its 2-ounce size and black finish set clear boundaries: it is not the natural choice for broad coverage or light-colored inflatables.

Listed on Amazon as: Flex Seal Spray Rubber Sealant Coating, Waterproof, Black, 2 oz, 1-Pack

#7

7. Flex Seal Mini White Spray

• Weight: 2.01 oz
• Compatible Material: Rubber, Wood
• Form: Spray
• dimensions: 7.01 x 5.43 x 1.89 in

Best for: Portable white repair multipack.

Why it ranks #7: This 2-ounce mini is described as flexible and rubberized, but its compatible-material list names rubber and wood rather than PVC or other inflatable fabrics.

This Flex Seal listing combines three portable 2-ounce white aerosol cans, giving inflatable owners multiple compact applications to keep on hand. The spray goes on as a liquid and dries into a strong, flexible rubberized coating, while the listed compatible materials include rubber and wood.

The liquid spray dries into a strong rubberized coating that stays flexible and pliable, connecting the application to repairs where a rigid finish is not preferred. Rubber is listed as a compatible material, making the product relevant to rubber inflatables, while the white color suits repairs where that finish is acceptable. Three 2-ounce cans offer separate portable units for storage or touch-ups. The small individual can size makes each more appropriate for limited coverage than a large surface treatment.

Skip it if you need a clear coating for PVC repairs; Flex Seal Clear 17 oz lists PVC compatibility and comes in a larger can.

This multipack fits buyers who want portable white spray for small rubber-inflatable touch-ups and multiple cans available. Consider the white finish and 2-ounce individual size before choosing it for a dark surface or a broad repair.

Listed on Amazon as: Flex Seal Spray Rubber Sealant Coating, Waterproof, White, 2 oz, 3-Pack

#8

8. Permatex 82099 Spray Sealant

• Weight: 9 oz
• Compatible Material: Metal, Plastic, Polyvinyl Chloride, Rubber
• Form: Liquid, Spray

Best for: Low-pressure hose leak repairs.

Why it ranks #8: Its compatible-material list includes PVC and rubber, but its stated targets are low-pressure automotive leaks, making it a weaker match for inflatable repairs.

Permatex targets low-pressure leaks in hoses, oil pans, differentials, and transmission pans, with a wicking spray that reaches hard-to-access areas. Its listing also names plastic, PVC, metal, and rubber compatibility, which gives inflatable owners material information to weigh while keeping the product’s low-pressure repair focus in view.

The wicking action is intended to seal hard-to-reach leaks without disassembling or removing parts, a useful workflow advantage for difficult access. The product specifically targets low-pressure leaks and lists plastic, PVC, metal, and rubber as compatible materials, so its material range is broader than its automotive-focused use cases. A durable rubber barrier forms the seal, and resistance to common shop fluids suits the listed repair context. For an inflatable, the low-pressure scope is the important fit boundary.

Skip it if you need a clear coating for general PVC repairs; Flex Seal Clear 17 oz lists PVC compatibility and a clear finish.

Permatex fits a buyer dealing with an accessible-material match and a low-pressure leak where reaching the leak without disassembly matters. Its stated automotive repair targets make it a specialized choice rather than an inflatable-specific sealant.

Listed on Amazon as: Permatex 82099 Spray Sealant, 9 oz., Natural Finish