Cheapest Bottom Paint for aluminum bottoms?

[JBVolvo]

Obviously I don't want something thats going to flake off the day after I do it, but I don't want to spend an arm and a leg to paint the outside of a small jon boat. Most likely either black or that dark army green color that seems to be the norm.

Any suggestions?

 

[tashasdaddy]

Re: Cheapest Bottom Paint for aluminum bottoms?

if the boat is going to be trailered, rustoleum works very well. but it is the prep that determines how long the paint stay on.

 

[JBVolvo]

Re: Cheapest Bottom Paint for aluminum bottoms?

if the boat is going to be trailered, rustoleum works very well. but it is the prep that determines how long the paint stay on.

what if it's NOT trailered?

and I assume you mean brush paint rustoleum?
What's involved in preping the aluminum beforehand? Sanding? Primer?

 

[JCF350]

Re: Cheapest Bottom Paint for aluminum bottoms?

Prep work,

Remove old paint
Was with Trisodium phosphate (TSP) solution (follow directions).
rinse immediately and well, TSP will lightly etch the aluminum
Prime and paint
Enjoy for years, unless you grind the paint off in places

 

[JBVolvo]

Re: Cheapest Bottom Paint for aluminum bottoms?

Prep work,

Remove old paint
Was with Trisodium phosphate (TSP) solution (follow directions).
rinse immediately and well, TSP will lightly etch the aluminum
Prime and paint
Enjoy for years, unless you grind the paint off in places

where can I get the TSP? Cost?
Also, do you agree that the rustoleum is a good paint to use?

 

[tommays]

Re: Cheapest Bottom Paint for aluminum bottoms?

Are looking for LOOKS or to protect from bottom fouling

 

[JBVolvo]

Re: Cheapest Bottom Paint for aluminum bottoms?

Are looking for LOOKS or to protect from bottom fouling

I reckon both...why?

 

[JCF350]

Re: Cheapest Bottom Paint for aluminum bottoms?

where can I get the TSP? Cost?
Also, do you agree that the rustoleum is a good paint to use?

Hardware store. Last I bought was a cleaning powder that contained TSP. Don't remember the cost.

Really need an aluminum primer don't know if Rustoleum has one or not. After the primer is on you can use it.

You only need spray cans for looks, I use a brush and roller.

 

[tommays]

Re: Cheapest Bottom Paint for aluminum bottoms?

If your leaving the boat in the water there are issues with paint that is NOT ment to be underwater and it will usally bubble and fail

If your in a saltwater area then Bottoming fouling is and issue and you would need to use and antifoul paint like trilux that is for Alu as standard antifoul paint will dammage Alu


In most freshwater areas the slime can generally be scrubed off pretty easy

 

[tashasdaddy]

Re: Cheapest Bottom Paint for aluminum bottoms?

if it is not trailered and left in the water you need a bottom paint to help keep the growth down. TSP, can be bought at any paint supply store, HD and Lowes also.

 

[crazyeddies]

Re: Cheapest Bottom Paint for aluminum bottoms?

I have used Rustoleum primer and paint on aluminum and it worked out good.

This was a few years back and and still looks good. You will need to touch up the bottom if it gets scraped.

Good luck and let us know your findings and progress.


Ed