Aquagard 190 Waterbased Primer was specifically made for aluminum or wooden surfaces. It provides excellent resistance to corrosion and salt by chemically bonding to aluminum. Distributes paint evenly without hassle. Easy clean up with soap and water.
Scientifically formulated for use with Aquagard's Alumi-Koat antifouling paints to improve adhesion on the final coat. This environmentally friendly product is compatible with all other top coats and exceeds VOC standards by releasing no toxic fumes. Available in quart or gallon sizes.
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what primer should be used on bare fiberglass below the water line?
If you want to stay with the Aquagard products it would be the 181 Primer, or Interlux 2000E or Totalboat Total Protect.
JD Tech Team
Would you recommend this product for alluminum pontoons?
I used it on wood and it was just fine, not sure about metal.JS
Used this on a new tritoon with a dewax, sand, followed by 2 coats primer, followed by 2 coats bottom paint. Boat in water all summer and held up very well. Labor intensive but happy with the results. Hardest part was getting good information on the whole procedure as Aquagard does not publish much.
how long it last for?
Are you asking how long it lasts in use, once it's been applied? I think it will depend on how hard you use it--crashing through waves, etc, hitting debris in the water, etc. and if you put a top coat on. I put mine on last year and I had a little flaking, but I repainted this year. So I basically went a year with a primer and top coat sitting in water. Hope this helps.
Its been two years in the water on one hull and and it's still working fine. Stands up a a vigorous power washing. Some abrasions that took some top coat away still didn't remove the primer. I've only used it on aluminum so your mileage may vary on other substrates.
Can or Should this Primer be used on fiberglass hull?
Hi Albert: I looked at my can and it says "aluminum (and other non-ferrous metals) or wood surfaces." It doesn't say anything about using on fiberglass. I used it on aluminum. Hope this helps.
I've tried many paints on aluminum hulls and this one has definitely held up the best and provided a great base for the Alumigard anti-foul paint. It even grips to old paint if given some tooth. The water clean up and low VOC was just a bonus but welcome all the same.