On 10 Jul 2007, at 22:47, iain jones wrote: > on 9/7/07 20:46, Susan Burchett at [EMAIL PROTECTED] wrote: > >> Our seal between the collar and the top of the boat keeps >> cracking. Are we >> using the wrong sort of mastic?
> what you need is a silicon sealant capable of handling high > temperatures > such as 'Plumba' red silicon Ah yes, that's the stuff. Sat here 50 miles from the boat I couldn't remember what it was called, but I re-sealed the chimney collar on nb Lark Rise with it about 3 years ago and it's been fine since. I think the tube I bought was called 'Plumba Flue'. Which sounds like an excuse for a tradesman not turning up. I also used it, 99% successfully, to re-seal the cheapo houdini hatch on the boat - recommended by the Newbury Boat Company. Still a very tiny leak, and the edge of the repair's a bit unsightly, but no doubt a re-fitting will sort that out. One day. Baz
