- 1 Is it possible to remove bottom paint from a boat?
- 2 How hard is it to remove bottom paint from a boat?
- 3 Can you remove antifouling paint?
- 4 Does bottom paint slow a boat down?
- 5 How often should I Antifoul my boat?
- 6 How do you remove paint from a boat?
- 7 Does my boat need bottom paint?
- 8 How do you remove paint from the bottom of a pontoon boat?
- 9 How much does it cost to Soda blast a boat bottom?
- 10 Does acetone remove bottom paint?
- 11 What is the best antifouling bottom paint?
- 12 How long does Antifoul last?
Three removal methods dominate the bottom paint scene these days: soda blasting, chemical stripping, and mechanical sanding. Wooden- boat owners have the added option of using heat to remove old bottom paint, while aluminum or steel hulls can stand up to sandblasting.
It’s difficult and expensive to remove bottom paint and restore a smooth gelcoat finish. If you find a boat that you otherwise love, but it’s been bottom painted, there’s no law that says you have to remove the bottom paint to keep it in dry storage.
Can you remove antifouling paint?
If your existing antifouling is in poor condition, we strongly recommend removing it completely before repainting. There are two methods outlined below, but you could also consider employing a professional antifouling paint remover who will use equipment that’s not suitable for a DIY boater.
There’s some debate about this but the consensus is, yes, bottom paint can slow your boat down. If your hull has a nice slick paint job then you may not notice much effect. You’ll end up with drag and your boat will slow down and use more fuel.
How often should I Antifoul my boat?
It’s generally recommended that you do this every four to five years with self-eroding antifouling. The good news is that the more antifouling there is on the boat, the easier it is to remove, so it pays to wait a few years between attempts. First of all, take a good look at the surface of the old paint.
How do you remove paint from a boat?
Follow our Step By Step instructions on how to remove old paint from your boat
- Apply the Hempel’s Paint Stripper with a brush or roller and leave it to work for 15-30 minutes until the paint coat is dissolved.
- Scrape off the old paint.
- Clean the treated surface with hot water and Hempel’s Boat Shampoo.
If you pull your boat out of the water every time you use it, you probably don’t need bottom paint. But if you keep your boat in the water all season, or if you take your boat out of the water periodically, such as on a trailer or lift, then yes, you should apply bottom paint to prevent hull fouling.
The best way to strip off the old anti-fouling paint is to wet sand it with 600 or 800 grit paper. Be sure to sand horizontally, with the grain, otherwise you’ll cut across the grain and the finish will look streaky and strange.
How much does it cost? According to Armstrong, the price varies depending on the length of the vessel. For example, a 30-foot boat might be around $45 per foot, while a 100-foot boat would be around $130 per foot because of the increased beam. “Our average job works out around $35 to $45 per foot,” he says.
Acetone will dissolve most other polymer finishes including enamel paint and fiberglass resin, so it’s not the best choice for cleaning painted or fiberglass surfaces unless you plan on refinishing.
Copolymer paints with anti-slime additives are best for heavy fouling areas. Environmentally preferable Ultima ECO and Pacifica Plus are ECONEA-based copolymer ablatives. Ablative paints (of the non-copolymer type) work in a similar way and minimize the annual ritual of sanding when applying a fresh coat.
How long does Antifoul last?
In the Caribbean, 8 to 10 years would be more normal. Many of the first boats treated in 1991 are still performing well after more than 20 years! Coppercoat Commercial offers our commercial customers up to 30 years of protection. In each treatment applied there is an average thickness of 250 microns of Coppercoat.