Can you use this Flex seal too caulk around your window frames? (more like a insulation)?, or stop a small draft creeping thru your window pane?

I'm sure you can. I have a waterwheel and trough. I sealed the trough, as it was leaking in several places. Even though water runs rapidly down the trough, I've had no leaking now for 2 years. I also used it to seal a leak on my ATV tir rim. The rim had a slight curve and wouldn't hold air. I sealed the sot that was leaking and it worked perfectly.

I have a leak in my car trunk, can this be used?

It really depends on why there is a leak, but probably not. If it's the weather stripping around the trunk (that rubber tubing stuff), I doubt that this stuff will replace or repair that. That's the most likely reason you have a leak. The seal needs replacing.

Can it be used on concrete?

Yes you can use Flex Seal on concrete.

I would like to use this to refinish and seal up a mobile home bathtub. Does it clean easily? Will it hold up to the constant use of a bathtub?

It will definitely seal and refinish the tub. I’m not sure about easy clean up as I only used it on a boat but it should clean up nicely as it seems to be self leveling spray and is very smooth when completely cured

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Spray Rubber Sealant Coating, Waterproof, White, 14 oz, 2-Pack

Product ID: 19609973

Details

Brand
Flex Seal
Item Weight
2 pounds
Item dimensions L x W x H
9.5 x 2.5 x
Material
Rubber
Style

💧100% Waterproof Seal

❄️Weatherproof - No Cracks or Peels

🛠️Flexible Rubber Coating

NZ$93

Duties & taxes included

In stock

Sold byAmazon New ZealandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💪 Seal it. Protect it. Own it. The ultimate fix for fearless pros.

PAINTABLE FINISH - Customize your repair with a paintable surface that blends seamlessly.
CORROSION PROTECTION - Shields surfaces from rust and moisture, extending the life of your investments.
SEAL LEAKS INSTANTLY - Stops leaks fast with a watertight, flexible rubber barrier.
VERSATILE APPLICATION - Perfect for gutters, roofs, RVs, wood, metal, and even creative projects.
ALL WEATHER DURABILITY - Remains pliable through scorching summers and freezing winters—no sagging or cracking.

Flex Seal Spray Rubber Sealant Coating is a 14 oz, 2-pack waterproof spray that creates a flexible, durable rubberized seal. Designed to stop leaks fast and protect surfaces from water, air, and corrosion, it withstands extreme temperatures without cracking or peeling. Paintable and versatile, it’s ideal for home repairs, outdoor gear, and creative projects, making it a must-have for proactive professionals who demand lasting protection.

Specifications

ASIN	B00W5Y2X36
Best Sellers Rank	#133 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1 in Hardware Sealers
Brand Name	Flex Seal
Color	White
Compatible Material	Rubber
Customer Reviews	4.4 4.4 out of 5 stars (39,935)
Global Trade Identification Number	00810129871333
Included Components	Flex Seal Spray Rubber Sealant Coating, 14-oz, White (2 Pack)
Item Dimensions	9.5 x 2.5 x 2.5 inches
Item Form	Spray
Item Highlight	Stops leaks fast, seals out water, air, moisture, prevents rust, paintable, flexible, gutters, roof repair, RV, wood, metal
Item Weight	2 pounds
Manufacturer	Swift Response, LLC
Material Type	Rubber
Model	FSWHTR20
Number of Items	2
Number of Packs	2
Part Number	FSWHTD20
Style Name	FSWHTR20-A-2PK
Surface Recommendation	Roof
UPC	810129871333
Unit Count	28 Fluid Ounces
Warranty Description	As Labeled
Water Resistance Level	Waterproof

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