let me add this...bottom's need to be properly prepped.the bottom has to be chemically dewaxed,then scuff sanded before anything can be applied to bare fiberglass...nothing will stick to antifouling bottom paint,if you're removing the paint from the bottom,even after blasting,the bottom needs to be sanded,to remove the residue,then solvent washed before anything is applied...aluminum parts and bottom paint...if your boat is equipped with an aluminum outboard bracket,you need to paint it with the correct paint-trilux,is what i use and reccomend,it's a tin base,not copper...remember,copper and aluminum do not play well together in sea water...also,you need a gap between anything aluminum and the copper bottom paint-gap needs to be atleast 1" wide...failure to follow this advice will result in a galvanic reaction...
best way to do a bottom is like this:epoxy barrier coat-i like and reccomend interprotect 2000e,use both colors,grey and white,this way,you know you're covering it all...make the barrier coat as thick as a matchbook cover-10mils-anything less,is just expensive primer...after you've got the bottom barrier coated,i use and reccomend the "tel coat" method.paint a coat of cheap crap hard bottom paint,a different color than what you're gonna finish with-blue finished bottom,use a black "tell coat"...after this,i paint the bottom 4-5 times with micron CSC...should get 4-5yrs from this...
thats all well and good for the boat, but what do you do about the electronics that are in the water, like a stern mounted fish/depth finder?
Know Before You GoLocal Weather | Marine Bouy Weather | Inshore Forecast | Offshore Forecast | Interactive Wind Charts | Tide Charts | Sea Surface Temps | Chlorophyll Concentrates | Online Chart Viewer