SML Ballastic EPOXY

[blackrose]

On 02/09/2023 at 14:53, Sea Dog said:

No need to apologise to me - it's not my theory and I'm not selling it! 

No need to apologise to me - it's not my theory and I'm not selling it! 

 

No need to say it twice. I wasn't apologising to you, it's just an expression. 😏

Edited September 11, 2023 by blackrose

[Sea Dog]

7 hours ago, blackrose said:

 

No need to say it twice. I wasn't apologising to you, it's just an expression. 😏

Sorry I apologised twice... 

[DHutch]

Well, so far I've bunged 1.5l of the Jotamastic 90 Al on all the 'bare metal' areas, just as we would with the Lieghs M902 and it's gone on just lovely, exactly the same to work with once mixed, and no reaction with the M535 Vinyl blacking just as before. 

 

 

 

 

 

 

You can also see the amount and quality of the retained finish from the Vinyl at four years old and a good amount of cruising during that time. 

 

NB, most of the 'bare metal' is actually still covered by trace amounts of the original blast primer and epoxy zinc from 1991 and has not suffered any corrosion. Actual bare metal, rust, is contained to three 50 x 900mm scars on the soft chine where the slightly wider points tend to rub on locks, and very very small amounts right at the lower rear edge, it runs in the sludge when we can quite get into the side to moor. 

 

Daniel 

[matty40s]

I have stripped hull back today and found several suspect areas, nowhere near as many as Dan's boat and most of these were failure in the Comastic previously, so the Dacrylate has protected these areas well in the last 4 years. Maximum pit seen is about 0.5mm, on a 1991 hull.

Most of the existing coating is to a depth at about 5mm or 6mm, so the failures look worse than expected until you wire brush back to metal.