sealing a DIY tarp

[Pennsy Camp and Canoe]

ok, elbow deep into this tarp project, about to hem the thing then seam seal. So, do you seal just the inside/underside or both sides (inside and out)?

I'm using PU4000 and seam grip if that makes a difference.

[LostCause]

I just do the inside but it is up to you.

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[Otter1]

I have only done the outside

[Flatliner]

I only do the inside


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[Pennsy Camp and Canoe]

thanks everyone, just about to hem everything, taking a break...

[Otter1]

In case you need some more seam sealing info:

https://backpackinglight.com/make_yo...ilnylon_seams/

[Pennsy Camp and Canoe]

In case you need some more seam sealing info:

https://backpackinglight.com/make_yo...ilnylon_seams/

anyone else try thinning the sealer?

btw, hems are done, they don't look too bad, have to finish the tie outs tomorrow

[P-Dub]

I have read many accounts of folks thinning the sealer, including people who mix large quantities to coat regular ripstop to make silnylon -- I myself have not yet done it but intend to when I get to the sealing phase!

[Otter1]

Sadly, most folks (& some well-respected cottage vendors) I see put on thick, heavy layers of sealant. Using the link I referenced above I got the most amazing results = in fact it was so good you could barely see it. Definitely can feel it though. Looks great and doesn't add much weight.

[Pennsy Camp and Canoe]

ridgeline and bottom ties out done, have to finish the pull outs and then seal it, hopefully by tonight. Taking a break, had to hang it outside and run under it lol.