painting over bottom paint....quick question

[oops!]

i have never worked with bottom paint as i am a fresh water guy. :facepalm:

got a big ol boat (2005) with anti fouling paint.

i have to repair the hull in several spots..so i have to add bottom paint after.

can i just slap any old bottom paint on it (interlux)?

or does it matter what was on there to begin with?...(ie mixing brands..as this is not a full hull paint job...but just a few spots). will there be a bonding issue mixing brands?

thanks all....sorry for the stoopid question but the search engine is very general

 

[Yacht Dr.]

Re: painting over bottom paint....quick question

i have never worked with bottom paint as i am a fresh water guy. :facepalm:

got a big ol boat (2005) with anti fouling paint.

i have to repair the hull in several spots..so i have to add bottom paint after.

can i just slap any old bottom paint on it (interlux)?

or does it matter what was on there to begin with?...(ie mixing brands..as this is not a full hull paint job...but just a few spots). will there be a bonding issue mixing brands?

thanks all....sorry for the stoopid question but the search engine is very general

It does matter actually..

You should try to find out if its an ablative or a hard type of paint.. or is it VC-17..( You will know if its vc-17 right away if you wipe it with acetone it will wipe right off and leave a copper color ).

IF its not VC then you should be fine with whatever BP you spot on there ( color will not match but hey..its only a spot )

The One thing I would do is coat your repairs with a barrier coating ( like Interprotect 2000 ) before you bottom paint right over your glasswork ( unless there very small repairs ).

YD.

 

[oops!]

Re: painting over bottom paint....quick question

It does matter actually..

You should try to find out if its an ablative or a hard type of paint.. or is it VC-17..( You will know if its vc-17 right away if you wipe it with acetone it will wipe right off and leave a copper color ).

IF its not VC then you should be fine with whatever BP you spot on there ( color will not match but hey..its only a spot )

The One thing I would do is coat your repairs with a barrier coating ( like Interprotect 2000 ) before you bottom paint right over your glasswork ( unless there very small repairs ).

YD.

thanks doc... ill be gellcoating the repair then bottom paint...
ill go do the acetone trick right now.....
but this gunk is hard as nails.... it took 4 24 grit grinding discs to do small sections totalling 25 sq feet!

 

[oops!]

Re: painting over bottom paint....quick question

it wipes right off with acetone.
dont really see a copper color...but came off fairly easy.

 

[Yacht Dr.]

Re: painting over bottom paint....quick question

VC is water thin..you would know right off ..

It does not sound like a hard AF paint..probably an ablative ( micron CSC or something ) ..

Got Pics

I would not use gel to coat your glass ( unless your using that as a Fair coating ). A few coats of epoxy/reprep is Much better for your repairs before final BP.

YD.

 

[oops!]

Re: painting over bottom paint....quick question

just read up on the vc 17...
this paint does not have the copper.....but from what i have read here,,, getting rid of bottom paint is a killer.....and this stuff comes off easy....

am i still ok with the standard interlux bottom cote?
i also just read on the can they want 60 days to launch date.....lol, as if that is ever gonna happen

 

[oops!]

Re: painting over bottom paint....quick question

lol....we were typing at the same time....
i have my camera with me as allways....but im on the shops old puter and have no way to load them.

my home internet connection is down...(the jerks) and they are taking there sewwt time coming to fix it

 

[Yacht Dr.]

Re: painting over bottom paint....quick question

just read up on the vc 17...
this paint does not have the copper.....but from what i have read here,,, getting rid of bottom paint is a killer.....and this stuff comes off easy....

am i still ok with the standard interlux bottom cote?
i also just read on the can they want 60 days to launch date.....lol, as if that is ever gonna happen

From what I remember the interlux " bottom kote" has a window from when you apply to when you have to launch..not wait time..but shore time. Its not a good coating for bottoms that are on land for "seasonal shoring".

Thats why I use Micron CSC.. its good for seasonal shoring without reprep.

Back in the days they had stuff that you put on and had to go back in the water That Day lol..

I know some BP's ( biocide ) have to be applied and put into the water within a window time frame ( like some Petit products ). Allways check to see what the window is..

I generally have to use a Seasonal paint up here in MI..or VC-17 ( the best IMO ).

YD.