View Full Version : Removing anti foul from plate boat
rcfisher
17-06-2016, 05:56 PM
Hey all
looked at a plate boat today which is pretty much exactly what I am after except the let down was the bottom was coated with anti foul. It was also on the bottom of the legs of the motors. Would this slow the boat down and also increase fuel consumption? Is it possible to get it taken off a plate boat? If so what sort of cost? I am guessing i would then have to get the bottom of the legs re sprayed.
thanks in advanced for your help
cheers Ryan
Blackened
17-06-2016, 06:07 PM
G'day
In short, It will have minimal impact on speed and fuel consumption if it's clean, however best to remove it if it's possible.
Best method is abrasive blasting using sand or soda for example.. It can be expensive and it's very messy and noisy.
After it's done, the cosmetic appearance of the boat will be much better and resale will increase. Factor the cost into the buying decision.
Dave
rcfisher
17-06-2016, 06:56 PM
Thanks Dave. Any idea of a cost?
fisho64
18-06-2016, 01:31 AM
jeez, dont blast it off a plate boat.
Just use stripper and a pressure cleaner.
Its blasted of glass boats because the gelcoat doesnt like stripper.
Noelm
18-06-2016, 05:27 AM
Plenty of aluminium boats get blasted, even small thin ones, stripper is fine on both materials, you just need to use the right one.
rcfisher
18-06-2016, 08:30 AM
Any ideas where I would go around Brisbane to get a price?
Noelm
18-06-2016, 08:55 AM
I guess google should turn up something local? Just look for abrasive blasters, then call them to make sure they have done boats.
fisho64
18-06-2016, 08:46 PM
Plenty of aluminium boats get blasted, even small thin ones, stripper is fine on both materials, you just need to use the right one.
yes they do, but that is when they are being recoated.
Can be soda blasted, but its expensive compared with just stripper and pressure cleaner.
I have done both FG and ally, strippers used on glass are touchy and many will soften gelcoat or discolour it.
Again no prob if you are recoating but RC wants to leave it of I think?
ryangler
18-06-2016, 09:41 PM
Assuming the anti foul comes up the side sheets the stripper will also lift your paint and primer underneather, can be expensive, messy and if you live in a warm climate can evap to quickly requiring you to cover with plastic food wrap.
After stripping my boat to bare I found the quickest way without damaging the hull was a 5' angle grinder with a the 3M purple clean and strip discs they are expensive at around $15 each but used properly you should only need a couple. The key is take the guard off the grinder (use cheap leather gloves to protect your hands) and keep the disc flat to the surface and dont put too much pressure on it. If you dont keep it flat it wont quickly abrade the hull like a grinding or flap disc but you will chew through the disc. If you work lightly you should be able to take the anti fouling off without going down to bare metal so you can just touchup the paint.
Alternativly if the paints in really good nick otherwise you could could use an orbital sander on the sides and transom. Depending on how thick it is start with 60-80 grit until your just above the paint then switch to 180 until you just start to break through to the top coats. Then switch to 800 to get down to the top coat and finish with 1200. Now to bring the gloss either wet and dry with 1500, then 2000 and compound buff it or if the existing paint is worth it you could clear coat the side sheets and transom to bring it to a uniformed finish.
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