Soeren L.'s SVB Skipper Profile
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Soeren L. asked these questions
1
A question about:
GTI 30 Thin-Film Antifouling / graphite
Soeren L.
on Oct 10, 2020
Can Plasmotec primer +GTI 30 be safely applied to Michigan Goldline (HTB1 manganese bronze) propellers and stainless driveshafts?
Answer:
Soeren L. answered
on Oct 6, 2022
YES, by experience it can safely be applied to metals.
However harmless to metal, primers for GPR won't stick properly to metal so the both primer and GTI 30 will soon disappear from propellers and shafts.
The best solution for stainless and bronze alloys, after testing all sorts in the Baltics for more than 50 years:
Remove old paint completely. Use an etching metals primer first, then apply a specific, for the purpose, antifouling.
!! Method is Not tested on sterndrives !!
Soeren L. already answered these questions
1A question about:
GTI 30 Thin-Film Antifouling / graphite
Jami J. asked
on Feb 19, 2020
Can I use this over Hempel Ecopower racing?
Answer:
Soeren L. answered
on Oct 11, 2020
Seatec doesn't give a lot of instructions on the tin, but since GTI properties are (close to) identical to VC17, I'd suggest to their guidance:
"Conventional antifouling
paints, removals is best but if this is not possible, start sanding with 80 grade (grit) paper and progressively sand with
finer grades until the final sanding with 320 grade (grit). Remove sanding residue."
I switched to GTI 30 to get the smooth, non layer building feature. Therefore had a complete removal of old antifouling (dry ice blasting) to get a perfect start, then Plasmotec primer and finally GTI. Very smooth result and so far kept the hull clean for two seasons (on land during winter). Boat is in the Baltic Ocean.
I'll apply an new layer before next launch.
Just personal experience., use it if you like.
2A question about:
GTI 30 Thin-Film Antifouling / graphite
Attila M. asked
on Mar 22, 2018
I was using for years International VC17m for Balaton lake (sweet water). I have 2 questions:
1. Was that a right choice?
2. Is it possible to paint over with Seatec Gti30?
Thanks for your answer
Answers:
Judith S. answered
on Apr 9, 2018
Hi Attila, yes it is possible to paint the SEATEC GTI 30 over your VC 17m.
Zoltan V. answered
on May 13, 2021
I also put Seatec GTI 30 after put on 4layer Epoxy Epotec on my HANSE 370 boat. I also read that the colour of the antifouling first time is bronze colour and after 3-5 months goes to an antrhrazit graphite colour. Unfortunately my Seatec GTI 30 at opening was anthrazit colour , on the boat still anthrazit colour !!! I use before VC17M on my Jeanneau but first also looks bronze colour. Also the paint looks harder and thicker then the VC17m or VC17m Extra. I read the Seatec GTI 30 is also manufactured by International, why my Seatec GTI 30 not looks like as described by SVB????
Szabolcs S. answered
on May 13, 2021
The Seatec does not change colour like the VC17. It is anthracit at applucation and stays like that. This was actually documented somewhere as a difference from VC.
But it is normal, I've been using it for years without any problem.
Soeren L. answered
on May 13, 2021
SVB will have to answer for their product themselves but I can't remember seeing anywhere that they say GTi 30 is bronze on application?
The PROPERTIES for VC17 and GTI 30 are close to identical and they are stated to by compatible in that you can add one on top of the other.
The VC17 formula has changed over time, from thin as water to a heavier viscosity. In the beginning it dried immediately (like a permanent marker pen) but that was not easy to apply evenly.
I believe (I do not have any proof) that the products build on the same technology. Probably supplied in some form to both brands by Voss in Hamburg.
Using GTI 30 now in my 4th season, washed an reapplied every second year after spending the winter on the hard!