A: YES, Flex Paste can be applied on dry or wet surfaces and even underwater. It won't dissolve or wash away and even dries underwater. For best results apply a generous amount to the surface using firm pressure.
Is Flex Seal better than leak stopper?
So overall, one crucial thing that differs between the two sealants in terms of durability is their ability to withstand temperatures. Both products aren't designed to work in extreme cold and heat, but Leak Seal seems to be more temperature-resistant than Flex Seal.
Is Flex Seal a permanent fix?
Flex Tape is a temporary, emergency repair and is not meant to be a permanent fix.
What happens if Flex Seal gets wet?
Q: Can I apply it on a wet surface or when it's raining? A: It's always best to apply Flex Seal Liquid on a clean, dry surface free of grease and oil. If applied during heavy rain, some of the product may wash away. Therefore, we recommend applying it 24 hours prior to any heavy rain, hail or snowfall (if possible).
Does Flex Seal really stop water leaks?
Does Flex Seal really work? Yes it does! Many users have had great success with using Flex Seal for a variety of uses. Whether you are using it to fix a leak, prepare for a storm or using it as a sealant, we know that you will be impressed with Flex Seal.