Isopon P.38

[Hobbes]

I'd give both the heave ho and go for car body filler.  Those in the UK know it as P38 and usually buy it from Halfords.  Mix as per the others and it'll go off quicker if you add more catalyst, usually within minutes.  Get the timing right whilst it's curing and it'll cut like cheese.  Sands easily and will polish to a glass like finish.  Hard, durable and takes scribing.

I've bought a tub of P38 last year and have been using it for a few projects. I've had some difficulty getting the filler:hardener mix right (1:20 is a lot harder to estimate than 1:1).

Yesterday I mixed a batch, and it hasn't hardened completely. Can this be salvaged, or do I have to cut it all away and start again?

[PR19_Kit]

Sadly it's useless now Harro.

It IS difficult getting the mix right, and I only managed it maybe 1one time out of three. That and the DREADFUL pong put me off it ages ago.