"Roger Millin" <[EMAIL PROTECTED]> wrote: >Cantoris asked: >> I'm wondering whether all new boats opt for 2 pot blacking, and if >not >> why not - is it not all it is cracked up to be? What if it gets >> scratched? Does it mean hull blacking every 4 years instead of every >> two? How about treating again - does it need shotblasting every time? > >To be honest we've not found that the two pack epoxy that we had on >Albion's hull was particularly any more long lasting than one pack >finishes. Another down-side of two pack that we've found is that it >rapidly weathers down to a dove-grey colour. Not a huge problem in >itself as it is an even colour all over. If you do need to touch up >scrapes etc though, you can't easily use two pack due to it's >specialised nature and one-pack (such as International Intertuf) shows >up very black against the grey background. This means that you end up a >with a patchwork quilt of black touched up areas on a grey boat. >Just a thought. Certainly my boat-builder, who originally did the hull >in two-pack, doesn't recommend it any more and is using one-pack. >Roger
The best stuff I've come across is from Jotun (Shepherd Marine 0207-622-2420). Incredibly tough surface. But definitely not inexpensive and has to be applied very properly, so I actually use Protegatar (Syntema 01296-334434, www.protegacoatings.com), an upgraded and quite durable bitumen product which is available as either single- or two-pack. Adrian Adrian Stott 07956-299966
