Hi all im putting together a electric outboard i am considering painting the K&B lower unit black to match the MRP plastic motor cowling . #1 ? is painting this lower unit a bad idea ? What sort of prepping is required to properly do this job ? What primer and paint should i be using? I don't want the paint to scratch going through a weed patch or hitting a floating twig or the paint to bubble. Regards Andris Golts.
Painting K&B lower unit
- Thread starter riggerman
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Sand smooth and use 2 part paint ( part A and part B ) also there will be a special primer for aluminum.
Brad
Brad
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I had a twin OB offshore boat years ago with 3.5 KB obs. I just cleaned them good with vinegar and painted them with some flat black paint. They held up pretty good.
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Oh, it was High temp flat black .
rippinwater
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Alumaprep, zinc chromate primer, and then paint. Maybe Mercury Phantom Black for the paint.
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Christian Lucas
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Hi,
have paint my older K&B after seeing John Brodbeck Circus Circus tunnel hull . He paint the outbord in pink and polished lower part.
I clean the aluminium parts with sandpaper and then each them with caustic soda, but only for a short time as the aluminium vasting has most lead in the material for better casting. Then paint with 2 k paint and heatdrey in a box 60 degree celsius. The parts that are the most time in contact with water when running i polished , old photo show only bad result but was better.
Happy Amps Christian
have paint my older K&B after seeing John Brodbeck Circus Circus tunnel hull . He paint the outbord in pink and polished lower part.
I clean the aluminium parts with sandpaper and then each them with caustic soda, but only for a short time as the aluminium vasting has most lead in the material for better casting. Then paint with 2 k paint and heatdrey in a box 60 degree celsius. The parts that are the most time in contact with water when running i polished , old photo show only bad result but was better.
Happy Amps Christian
JUSTINROGERS
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Don't bother with paint anymore!!!!
https://www.cerakoteguncoatings.com/?gclid=CjwKCAiA8bnUBRA-EiwAc0hZkwHFLyljj97VrthdAbH9ozUlEmJGdIdHR5j5wwseDoFp59aGHnI9hRoCxSgQAvD_BwE
https://www.cerakoteguncoatings.com/?gclid=CjwKCAiA8bnUBRA-EiwAc0hZkwHFLyljj97VrthdAbH9ozUlEmJGdIdHR5j5wwseDoFp59aGHnI9hRoCxSgQAvD_BwE
Mark Simmons
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I would send mine with 400 grit wet paper and then I use John Deere black graphite slip plate holds up well to 60% Nitro and actually gained a little bit of speed
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