Yes tanks can be welded but should be well aired and then steam cleaned (inside) first,
another thumbs up for petro patch, fixed many a mini petrol tank in me yoof with it, you get some bandage type material and a bottle of pinky red gloop, paint gloop in area you want to seal apply some gloop onto bandage and then apply bandage to tank, gloop sides together, brush some more gloop over top of bandage, repeat with overlap if bigger area needed and leave to dry, would also fixed cracks in batteries but I guess they are tougher these days.
CSR 200 Aztec and Black
Edited by - tbird on 19 Aug 2010 21:28:29