Wonder if any GRP experts on the forum, could make some suggestions as to
the best way to join together 2 mouldings, which when bonded will form a 50
litre watertank?

There is a 10mm wide flange on each of the mouldings, and clamping them
together would be no problem. Have already had epoxy suggested, and also
polyester resin with colliodal silica to thicken it.

Many thanks for any advice, would be nice to hear what any GRP experts might
have to say on this one.

TIA

Ron