Mixing brands of undercoat/primer and topside paint

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slimtim
Posts: 53
Joined: Thu Nov 20, 2014 8:23 pm

Mixing brands of undercoat/primer and topside paint

Post by slimtim » Tue Oct 03, 2017 6:45 am

Can I use International Toplac on a base of Hempel primer/undercoat?

Aquarius
Posts: 105
Joined: Thu Jul 13, 2017 11:08 am
Location: Woodbridge Suffolk

Re: Mixing brands of undercoat/primer and topside paint

Post by Aquarius » Tue Oct 03, 2017 10:21 pm

slimtim wrote:Can I use International Toplac on a base of Hempel primer/undercoat?
Basically, yes.

These simple rules and few may help:

1. You can put one pack over any sort of two pack paint (be that two part polyurethane or epoxy)

2. You cannot put any kind of two pack over one pack

I've edited this bit:

3. You can put chlorinated rubber over alkyd, but not vice versa. The only chlorinated rubber paints that you are likely to see are antifoulings (almost all of them, but not much used on racing dinghies) and Hempel's deck paint.
Last edited by Aquarius on Fri Oct 06, 2017 3:04 pm, edited 1 time in total.
CVRDA eligible:
1962(?) Firefly F3163 "Aquarius"
1946 International Fourteen K478 "Galatea"
Not CVRDA eligible:
1991(?) Nethercot IC K229, "Ogaf the Unbearable"
Squib. possibly number 251, "Squirt"

slimtim
Posts: 53
Joined: Thu Nov 20, 2014 8:23 pm

Re: Mixing brands of undercoat/primer and topside paint

Post by slimtim » Wed Oct 04, 2017 1:30 pm

Thank you very much for the feedback. Very helpful - especially as it means I can use what I have!

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