A "Sandvik! two handed jobby , with a tungsten two edged blade ,
very sharp and very efficient,Be careful not to plane the gelcoat with it.
It is quite capable of doing so unintentionaly !
Graham are we talking about the same scrapers here, mine did all of my boat 27 foot, and a mates of simular size, all on the same blade!.. though it was reversed.
If anything it did a better job when the blade lost a bit of its edge, did not shave the gelcoat so much plus if you round off the corners of the blade it does not scratch up the gelcoat, if you are careful, IMHO of course /forums/images/icons/smile.gif
I use a standard Skarsten scraper and then an orbital sander with fine AlO. The secret is to leave the old antifouling sufficiently long enough for it to dry and start to lift.
Mant swear by the Bosch electric scraper and many of the pros use these for removing old antifouling
Yes definitely a Sandvik orange handle job.My boat is only 22 foot but had multiple layers of hard antifoul.
Maybe you got a better blade as Ifound it to be harder work after doing about half the boat(or were my arms getting tired?).I have still got it and use it for loads of jobs paint varnish etc.
Good. I'm interested as well as I have to bite the bullet this winter and remove the increasingly flaking antifoul.
One thing I'm wondering about is the length of time RemovAll takes to penetrate in winter conditions. The leaflet says 12 hours in temperature above 22 degrees C. What about above 0 degrees C? Also hiring an airless sprayer doesn't come cheap.
I used International Interstrip a couple of years ago to remove completely antifoul from a 10m hull. It worked, eventually, but took ages, was very messy, and quite expensive as well. Interstrip does not cause the paint to bubble and lift like Nitromors for home decorating does. Instead it melts the paint making it liquid again, which can then be scraped off. It took a few goes to get right back to gelcoat, and by the end I was really fed up with the whole process. Resulting finish was perfect though.
I also tried Dilunet, but had little success with hard racing antifoul.
<hr width=100% size=1>One day, I hope to own a real boat.
I've done 3/4 of our 27 footer so far this season with a "Bahco" (Sandvik) 2" scraper from B&Q. It has a replaceable carbide blade but no second handle like the bigger Sandviks. It is, however, very handy for getting into smaller places and tight curves. I have 7 seasons's worth of antifouling to take off (all eroding A/F) but it works pretty well (it's exhausting and very boring though!) I find it useful to grind a tiny radius on each corner of the blade to help prevent it digging in though. If you can get it to break through all the layers at once it will take them all off in one pull. If you don't it just takes part of it off and polishes the rest. This then makes it hard to break through the skin on the next pass.