Yes, Aluminum Foil Tape waterproof properties is excellent.
The aluminum foil itself is water-resistant, and the adhesive backing is also designed to be waterproof. This makes aluminum foil tape a good choice for sealing leaks in pipes, gutters, and other outdoor applications.
- Aluminium tape prevents moisture from diffusing through walls, floors and ducts thereby preventing the build up of water vapour from the air.
- In terms of HVAC ductworks functionality, Aluminum foil tape is often used to limit vapor drive with the ultimate goal of preventing condensation. Also it can be used for repairing, sealing, hose, pipe, surface crack etc.
- The best waterproofing tapes should be thick and made of a rubbery type of material that is suitable for pressing hard against a surface without bunching up and creating water pockets.
However if this kind of tape is applied to a wet surface it is prone to trapping water underneath it which quickly causes the tape’ s thin layer of glue to fail.
So remember, before attaching the water proof tape, keep the target surface clean, dry and oil-free.