Trinidad Hard paints HD VS PRO VS XSR

[Makr0]

Hi all.

It’s nearly haulout time for me and time to scrape the bottom to the barrier coat and start a fresh bottom paint job.

I’ve landed on using Trinidad hard paint but now I’m faced with do I go cheap and use HD or 75 @ $299 per gallon Or look at XSR or PRO @ $385-$415 per gallon?

I’m primarily cruising in the tropics.

Thanks

[Ryban]

You'll probably get 10 different answers from 10 different people, as it seems everyone has a different opinion about bottom paints.

FWIW, we're about to put on the Trinidad HD, because from my research it seemed decent for a hard paint, and our boatyard requires us to buy paint through them or face a hefty surcharge.

[MicHughV]

Can't go wrong with Trinidad HD

[scherzoja]

Here is the list of biocide for each of the four.
IF copper is all that matters, there is not much difference between 75 and Pro

Trinidad 75: Cuprous Oxide 60.9%
Trinidad HD: BIOCIDE: Cuprous Oxide…53.3%
Trinidad Pro: BIOCIDE: Cuprous Oxide…65%


Trinidad XSR has completely different biocides
Copper Thiocyanate…15%
ECONEA®…6%
Zinc Pyrithione…6%

Source: https://pettitpaint.com/products/ant...d-antifouling/

With copper-based biocides is % of copper the only thing that matters?

I've used Trinidad 75 and MarPro SuperKote Gold in the past and the antifouling performace lasted 5 - 8 years with very little barnacle issues (Gulf Of Mexico coastal waters, year round in water). Near waterline where atmospheric exposure is common, barnacles grew after about 3 years. Down deeper that never got exposed to the atmoshere, only about 10% barnacles (10% of the underwater area had barnacles) that popped off easily during biannual hull scrubbing.