Repairing a self inflating mattress

Thermarest put out a repair kit available at camping shops.

Mike

The stuff you need is called Seam Grip. It's made in the US and is fantastic for this kind of repair. I get it from Paddy Pallin and they have a demo of what it can do. We have used it for just this kind of job.

Peter

By the name Seam Grip sounds like the right stuff given where your problem is.

I had a couple of small holes in one of these mattresses (not at the seam). I put 'hundred mile and hour' tape ofer them and surprisingly it worked fine.

Norm C

The good old super glue works well - get the gel kind. We always patch our mattresses with that and a piece of vinyl. It gives an instant repair.

To close-off this query, I bought the Seam Grip product, applied it to the inside edges of the split seam with the applicator, then cut a small patch and applied the product to both surfaces and let it cure for 5 minutes (was supposed to be 15 minutes, but who can wait that long!). Then I placed the patch over the split seam on both sides by folding it over. Got a G clamp with 2 bits of wood and applied pressure and left it overnight. This morning I took the G clamp off together with the bits of wood, which were slightly stuck to the fabric, closed the valve on the mattress and jumped on it and did not hear or feel any air coming out. Looks like it is fixed. Will see how long for though.

Thanks all for your comments.