Aluminium box section

[D.C.]

It doesn't have to be 'perfectly' level before you pour the resin, gravity gives you a flat surface on the top of the resin to mount rails on after the resin has set.

The cost of the resin works out as less than the cost of buying a decently accurate spirit level...

[martin54]

It doesn't have to be 'perfectly' level before you pour the resin, gravity gives you a flat surface on the top of the resin to mount rails on after the resin has set.

The cost of the resin works out as less than the cost of buying a decently accurate spirit level...

Yer, obviously wasn't thinking when I posted lol Must be an old age thing. I was thinking you could end up with a quite thick bed of resin at one end lol but it would be easy enough to get it close to level with a spirit level. Not short of spirit levels or laser levels so got that covered, got enough resin so really just need the hardener.
Is it just resin & hardener that you have read about DC or are people adding a filler powder or something else to help