Putting new antifoul onto old

[BlueSkyNick]

There are many views on applying a different antifoul product to what is on the boat already.

I came across this chat today, produced by International so its primarily their products, but quite useful anyway.

http://www.yachtpaint.com/LiteratureCentre/antifouling-compatibility-chart-gbr.pdf

 

[[70521]]

Interesting, I just slap the cheapest stuff I can find on and it works just as well, if not better, than the expensive stuff.

 

[Quandary]

Makes clear what we all knew, as long as you steer clear of VC products you can use anything. I have used probably up to about a dozen different antifoulings over time without the luxury of a barrier coat and to date I have not had a problem with rejection though that does not mean that they have all adhered as well as each other. The only rear problem I have experienced so far was when a two coat job was overcoated without ever being immersed, (wrong colour used initially by the builder) I attributed that to the paints exposure to surface pollutants on its delivery trip from Finland by ship and lorry and our failure to wash well before overcoating.

 

[VicS]

At one time there was a compatibility problem putting International's best one on top of lesser ones of any make.

I knew someone who was offered the "good" stuff for the same price as the bog standard stuff due to an ordering cock up. He could not resist a good deal but it crazed the underlying coats and from then on his bottom had a crazy paving pattern in the antifouling.