Expert advice

Last year I painted the hull with Gelshield® 200 followed by an antifouling. When lifting the boat most of the antifouling had detached. What has happened?

Epoxies like Gelshield® 200 and Interprotect® cure to a very hard film, a film that at the right thickness will protect against water permeatation. Due to the fact that it hardens up so quickly, the overcoating times for an antifouling are very short. If you wait until next day to apply the antifouling, the epoxy will be so hard that the antifouling will not adhere strongly to it. The problem normally appears when exposed to water for a longer time and the paint will start to detach.

You can use our Paint Estimator to determine how much paint is required. Just enter the type and dimensions of your boat, the product you're using and the number of coats required, and you'll receive a helpful estimate.

How much paint do I need?

We'll help you calculate how much paint is needed.

What product do you want to paint

What type of boat?

Full bodied craft

Fin keeled racing craft

Medium draft racing craft

What is the underwater area?

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1 x LWL x (B+D) = Underwater Area (m2)

0.5 x LWL x (B+D) = Underwater Area (m2)

0.75 x LWL x (B+D) = Underwater Area (m2)

LOA = Length Overall
LWL = Length Waterline
B = Beam
D = Draft
F = Freeboard

What application method?

How many coats do you want to apply?

If you put less than the minimum recommended numbers of coats, it may affect the performance of the coating.

To paint a ? x ? x ? ??, with ? coats

You'll need ? litres of

Warning that this tool is an estimator only

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