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How Much Paint Do I Need For My Boat?
| Bottom Paint Calculator | 1 Coat | 2 Coats and 3rd at Waterline |
| Length (Feet) | Gallons-Quarts | Gallons-Quarts |
| 20-25 | 3 Quarts | 1 Gallon + 2 Quarts |
| 25-30 | 1 Gallon | 2 Gallons |
| 30-32 | 1 Gallon + 1 Quart | 2 Gallons + 2 Quarts |
| 33-37 | 1 Gallons+ 2 Quarts | 3 Gallons |
| 38-40 | 1 Gallons + 3 Quarts | 3 Gallons +2 Quarts |
| 41-42 | 2 Gallons | 4 Gallons |
| 43-44 | 2 Gallons + 1 Quart | 4 Gallons +2 Quarts |
| 45-46 | 2 Gallons + 2 Quarts | 5 Gallons |
| 47-49 | 2 Gallons + 3 Quarts | 5 Gallons + 2 Quarts |
| 50-52 | 3 Gallons | 6 Gallons |
| 53-55 | 3 Gallons + 1 Quart | 6 Gallons + 2 Quarts |
| 56-59 | 3 Gallons + 2 Quarts | 7 Gallons |
| 60-61 | 4 Gallons | 8 Gallons |
| 62-63 | 4 Gallons + 2 Quarts | 9 Gallons |
| 64-65 | 5 Gallons | 10 Gallons |
*Above estimates only for bottom paint. Actual square footage and coverage may vary by boat and bottom paint.
Sea Hawk Paint Compatibility Chart
| Gel Coat Paint Theoretical Coverage: You should determine the square footage by multiplying the Length x Width of the surface that is going to be covered with gel coat. When you apply the recommended wet film of 18 mils you will get this coverage per coat:1 Quart = Approximately 12 square ft1 Gallon = Approximately 48 square ft. |
| AwlGrip Topside Paint Theoretical Coverage: Brush/Roller Application: 700-725 Sq. Feet at 1 mil (25 Microns) dry: 285 Sq. Feet at recommended dry film thickness.Recommended Wet Film Thickness: 4.5-6 mils (112.5-150 Microns), Total of 2 Coats.Recommended Dry Film Thickness: 2-3 mils (50-75 Microns), Total of 2 Coats.Recoatability: Spray applications consist of 2-3 coats applied over 1-4 hours. Exact time will vary with temperature, project size, and film thickness applied. Brush/Roller applications require at least 2 coats applied minimum of 16 hours apart. Awlgrip topcoats which have been allowed to dry more than 24 hours must be sanded before recoating.Spray Application: 530 Sq. Feet at 1 mil (25 microns) dry film thickness; 210 SQ. Feet at recommended dry film thickness.Recommended Wet Film Thickness: 6-9 mils (150-225 Microns), Total of 2-3 Coats.
Recommended Dry Film Thickness: 2-3 mils (50-75 Microns), Total of 2-3 Coats. Coverage calculations are calculated for mixed base and converter, reduced 25% and are based on a theoretical transfer of efficiency of 100%. Actual coverage rate obtained will vary according to equipment choice, application techniques, part size, and application environment. Anticipated Cure Time at 77 F/ 50% R.H.: 24 hours to tape free, 3 days to light service, 14 days for full cure. For AwlCraft 2000 Topside Paint Theoretical Coverage: Spray Application: 573 Sq. Feet at 1 mil (25 microns) dry film thickness; 230 SQ. Feet at recommended dry film thickness. Recommended Wet Film Thickness: 6-9 mils (150-225 Microns), Total of 2-3 Coats. Recommended Dry Film Thickness: 2-3 mils (50-75 Microns), Total of 2-3 Coats. Recoatability: Spray applications consist of 2-3 coats applied over 1-4 hours. Exact time will vary with temperature, project size, and film thickness applied. Brush/Roller applications require at least 2 coats applied minimum of 16 hours apart. AwlCraft 2000 topcoats which have been allowed to dry more than 24 hours must be sanded before recoating. Coverage calculations are calculated for mixed base and converter, reduced 25% and are based on a theoretical transfer of efficiency of 100%. Actual coverage rate obtained will vary according to equipment choice, application techniques, part size, and application environment. Anticipated Cure Time at 77 F/ 50% R.H.: 24 hours to tape free, 3 days to light service, 14 days for full cure. |
how much paint would i need to cover a 14ft jon boat bottom
Should be 1-2 quarts depending on which type of paint you are using.
Could I use you gelcoat to paint my fiberglass swimming pool? Thanks
Yes. Gelcoats are used as the surface in fiberglass pools.
I am going to do my own boat bottom paint on a 2003, 29ft Stamas. I plan to use PETTIT TRINIDAD SR SLIME RESISTANT ANTIFOULING PAINT. My boat sits in the water, does not come outThis will be the first time out since 05′. At the cost of this stuff I need to do it right the first time. It has a bottom paint now but has not been done in 5 years. Can’t believe how well it held up but I’m sure its way past due for another.
How many caots do you recommend and how many gallons will this take me? Can you put too much paint on the bottom?
Thanks. Please get back to me.
You should scuff sand the the existing bottom paint with 80 grit sandpaper and then apply two coats of Tropikote Biocide. This paint is very similiar to Trinidad Slime resistance, but has a little more copper for even improved peformance. Since both the Trinidad and the Tropikote Biocide ard hard paints, and do not wear off over time, you do not need to build the paint with multiple coats. The reason for two coats is just to insure proper coverage and no missed spots. You can put too much bottom paint with hard paints like these. Again, they do not wear away and each gallon weight about 23lbs. You would need 2 gallons of the Tropikote Biocide.
Hello:I have a 14ft. tr hull Boat that i am redoing I cam rub my hand on some eras of the hull in paint will come off on my hand in some eras so i lightly sand the the whole hull now i am being told i need to gel coat it before I paint it but i only wet sand the hull to remove the sheen from it so when i do repaint it the HULL paint would bond to the exciting paint on the hull could you help me with this please on whats a Good paint to get or do i need to re gel coat the Hull please help Singed DARYL
Please see our article: How to Apply Gelcoat.
Most gelcoat will cure in 2-4 hours, but an overnight cure is ideal.
Paint or Gelcoat? Gelcoat will last the longest, but is the most labor intensive to apply. There are several paints that you could use including a single component marine enamel or a 2 component polyurethane such as Awlgrip. The marine enamel is the easist to use and the least expensive. Awlgrip will give you a pristine finish. However, for the size of your boat I would go with the easiest and most cost efficient paint which is the marine enamel.
how much antifoliage paint for a 1965 36ft wood yaucht
Please see our bottom paint calculator. For two coats it is 3 gallons.
I have CM 21 retractable keel sailboat with a 21′ LOA, a 7.5′ Beam and a 4.5′ Draft. How much of the AF33 bottom paint would you recommend?
It sounds like 1 gallon will do the trick!
i just bought an 18ft cobio. it has a few hairline cracks about 6 inches long wil your gelcoat fill them or should i have them repaired first?
Depending on how depp they are, you made need to apply a filler first such as the 3M Premium Marine Filler. Then apply the gelcoat.
hi i have a 20 foot pontoon boat i sure that there is a different amount used for these types of boats and is there special bottom paint to stick to aluminum ???
You should visit this article… How to apply bottom paint to an aluminum boat
I figured out how much I needed for my boat but i wanted to know, how much paint thinner do i need for three quarts of paint?
Thinner is not really necessary unless you plan to spray the bottom paint. You should thin no more than 10%
I have old paint on the bottom of my boat know and i trailer it. I just want a paint more for looks then is needed for protection. what should i us without wasting money for paint i don’t need?
If your boat does not stay in the water, the best to use is the marine enamel.
Is there a maximum time that a fiberglass boat can be out of the water after bottom-painting? I heard someone say that boats need to be back in the water within 3 days of applying new bottom paint–any truth to that?
Thanks.
There is truth to that statement if you use a hard bottom paint. Hard bottom paint (also called modified epoxy bottom paint) will oxidize when out of the water for more than 72 hours. If you use an ablative bottom paint then there is no maximum time. You should just do a light pressure wash before launching to remove any oxidation if out more than 30 days.
I live in West Central Florida (Hudson, Pasco County) should I use a ‘hard’ or ‘soft’ bottom paint in my Bristol 27 sailboat? She is not kept in the water, I have modified my boat lift to accomodate her full keel.
Hard bottom paint will oxidize within 72 hours of being out of the water and will lost its antifouling properties. We would recommend an ablative bottom paint by Sea Hawk. There ablative paints are harder than other brands and tend to last the longest.
The calculator is for a single hull. Your Pontoon boat should take 1 gallon.