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/diy/ - Do It Yourself

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File: 51 KB, 500x500, flex_seal__62415_zoom.jpg [View same] [iqdb] [saucenao] [google]
337285 No.337285 [Reply] [Original]

any toughts on this? i just buy a can to try it on some holes i made on galvanized metal sheets to put a HVAC duct, i havent tried yet but i wanted to know if any of you have experience with this or similar products.

I watched some reviews online but it seems it was more like the costumer fault than anything else, some dude was trying to use it to fix pipes and other one a hole in a fuel tank.

>> No.337288

>>337285

How big are the holes?

>> No.337293
File: 31 KB, 310x310, 1322816550862.jpg [View same] [iqdb] [saucenao] [google]
337293

DUCT tape

>> No.337299

>>337293
interestingly, you should use aluminium vent tape rather than duct tape, on your ductwork. However, OP wants to seal the aperture through which the duct is passing, so a sealing compound is a more appropriate choice in this case.

>> No.337314

>>337299
>>337299
this guy is correct, i usually use a product that is used to waterproof concrete roofs, but is not very good on metal because of dilatation and stuff, i also use polyurethane, it works ok, but the finished is very bad.

The biggest gap between the roof and the duct i would say that is 1 or 2 inches.

>> No.337323
File: 8 KB, 226x281, RubberizedUndercoating.jpg [View same] [iqdb] [saucenao] [google]
337323

Flex Seal is a massive fucking rip off. It's just rubber automotive undercoat with a different label.

You can get the same stuff for $4 a can at any hardware store, automotive store or even walmart.

Pic related.