Skip to main content
A Greenfield Manufacturing, Inc. Company

Frequently Asked Questions

What is HullSpeed?

HullSpeed is a line of performance bottom paints designed to improve speed, hole shot, fuel economy, and ease of hull cleaning and maintenance.

Will applying HullSpeed void my warranty?

No, the HullSpeed application is simply another coating for the hull such as a wax but way better. You’re not altering any load-bearing or engine components.

How is HullSpeed applied?

You can apply HullSpeed yourself or at a boat shop or dealership. You have to be able to block or hang the boat which most people aren’t able to do unfortunately. For aluminum boats, tape off a waterline and the lower unit and prep with a scotch-brite pad to remove dirt or oxidization. Clean with acetone or other cleaner. Apply 3 coats with a foam roller, 10 min between coats, and leave hanging or blocked for 24hrs. For fiberglass hulls, tape off the waterline and lower unit. Prep with 150 grit sandpaper with a DA or other power sander, and clean with acetone or other cleaner. Apply 3 coats, 10 min between coats, and leave hanging or blocked for 24 hrs. Clean and dilute with water.

How much does an application cost?

A gallon retails at $249.00 if you’re going to do it yourself plus the cost of rollers, trays, and tape. A shop or dealer will typically charge between $800-$1200 including paint.

Do I paint the entire bottom of my boat?

Yes; for the best performance results, any part of the boat in the water from the bow eye to the lower unit should be coated.

How much speed will I gain with a HullSpeed application?

Speed gains have been recorded from as little as 1mph up to 4mph on the top end, as well as low and mid-range speeds.

How much fuel will I save with a HullSpeed application?

Fuel economy improvements have been recorded from 1% to 8%.

Will HullSpeed improve my hole shot?

Yes. 1/2 mile acceleration tests have been recorded up to 2 seconds faster than uncoated.

Will HullSpeed affect handling?

No, and yes. The chines and hull design will do their job regardless of the application, so cornering and handling will not be affected. However, many have said cornering, acceleration, and deceleration are noticeably smoother with HullSpeed. When decelerating, however, some people have said the stopping time is slightly increased, so be aware of that when approaching cover or structures.

Will HullSpeed help prevent osmotic blistering?

Yes. HullSpeed is an epoxy coating therefore providing additional protection from blistering and abrasion.

Is the finished surface suppose to be textured?

Yes. With a rolled application, the surface will be textured, this is normal. With a sprayed application you will still get an ‘orange peel’ finish, it’s just the nature of the chemistry. Nonetheless, the boat will be faster and easier to clean than standard gelcoat or bottom paint.

What can HullSpeed be used for?

HullSpeed can enhance various racing, sports, military, commercial, and recreational marine vessels performance for rowing, sailing, off-shore powerboat racing, hydroplane racing, jet boat racing, fishing, bass fishing, sport fishing, pontoon boats, air boats, rec motor boats, jet ski, passenger ferries, commercial fishing vessels, off-shore supply vessels, patrol boats, navy swift boats, floatplane, seaplanes, canoe, kayak, surf, paddleboard and more!