Re-Waterproofing an older tent?

Has anyone ever re-waterproofed an older tent?

My parents let me borrow their older 20’x10’ Quest tent and it has seen better days. The fabric is see-through/worn along all the folds or wrinkles. I thought about buying some spray-on waterproofing, but I am unsure how much I would need or if it would even work. We took the tent camping over the weekend and it rained a lot. We had to set up and dry the tent out later.

I don’t know what kind of fabric it is and the idea of it melting or something breeds hesitation. I am trying to dig up information through the company about best practices, but have yet to hear back. Buying a comparable tent right now is very expensive and a lot of brands don’t have fully separate zippered rooms. There are so many things I like about this tent. I really don’t want to get rid of it. I want to use it forever so that it never hits a landfill, there is already so much waste in the world.

Also I have seen people reference re-sealing seems and think that I probably need to do that as well. Would you do that before or after re-waterproofing?

It seems to me that the tent is in good condition otherwise. Should I invest in this tent or is it a waste of time? Would the waste from the re-waterproofing be worse than getting a new tent?

I have a lot of research to do, but figured I would come here and see if anyone had first hand knowledge of the failure or success.

Seams are sealed from the inside and you only spray waterproofing on the outside so you can do both in whatever order you want. If you’re worried, you can test a non essential corner flap, but i don’t think it’s going to harm it. It’s silicone spray… You can look at the ingredients online. It’s a nice tent, i think with yearly waterproofing and care/maintenance you’ll get a lot of years out of it :slight_smile: