Permatex 09100 Plastic Fuel Tank Repair Kit

I can’t mixing when I received one is already hard

This product works as advertised. I have a basketball hoop and the plastic base got cracked. This was able to seal the crack well and the basin is holding water well. We'll see how it stands up over time but the epoxy dried hard and smooth so it looks promising. As noted by others... you need to work fast when using this! My first attempt at using this product didn't work out well as I took too long, and before I had finished painstakingly applying the epoxy mix it grew extremely hot and started to harden before I'd applied much of it. My second attempt I was ready and worked quickly. One thing worth noting is that the epoxy comes out quite runny so if you're applying to a curved surface be aware of that, and you might want to just cut a corner of the epoxy packet so that you are applying a narrow-ish stream with more control than what I initially did. There is more material in here than I initially anticipated.

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Ok

Product specification says not for fuel tanks only. But it does not mention,from the small prints in the manual: NOT FOR POLYETHYLENE OR POLYPROPYLENE. Because 90% of watertanks and tubes are made from this. So product is useless!

I used this product to repair a small crack on my car’s coolant reservoir, however the paste didn’t stick the reservoir properly and was peeled off after few days!