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

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

Product ID: 19609973

Details

Material
Rubber
Brand
Flex Seal
Style
Item Weight
2.3 Pounds
Item dimensions L x W x H
9.5 x 2.5 x

💧Instant waterproof seal

🌡️Heat & cold resistant

🛠️Flexible rubber coating

₹ 6279

Duties & taxes included

In stock

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Description

💧 Seal it, forget it — leak-proof your life with Flex Seal!

PAINTABLE FINISH - Dries white and can be painted to match any surface
FLEXIBLE DURABLE - Remains pliable for years without cracking or peeling
SEAL LEAKS INSTANTLY - Stops leaks fast with a watertight spray-on rubber barrier
VERSATILE APPLICATION - Perfect for gutters, roofs, RVs, wood, skylights, and more
ALL WEATHER PROTECTION - Withstands extreme heat and freezing cold without sagging

Flex Seal is a 14 oz, 2-pack spray-on rubber sealant that instantly stops leaks by creating a flexible, waterproof coating. Designed for durability, it resists cracking, peeling, and weather extremes, making it ideal for gutters, roofs, RVs, and more. Its paintable white finish blends seamlessly with any project, offering a fast, reliable solution trusted by thousands.

Specifications

ASIN	B00W5Y2X36
Best Sellers Rank	#138 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1 in Hardware Sealers
Brand	Flex Seal
Brand Name	Flex Seal
Color	White
Compatible Material	Rubber
Customer Reviews	4.4 out of 5 stars 39,858 Reviews
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
Item dimensions L x W x H	9.5 x 2.5 x 2.5 inches
Manufacturer	Swift Response, LLC
Material	Rubber
Material Type	Rubber
Model	FSWHTR20
Number of Items	2
Number of Packs	2
Part Number	FSWHTD20
Style	FSWHTR20-A-2PK
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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