Sheen Marine © 2015  - 447 Mark St., Peterborough, ON, K9H 1W1 - 705-761-7867 - rodbrandon@sheenmarine.com

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To provide a proper estimate for bottom work, first, we perform a complete hull inspection to check for the following:

  1. Cracks, fractures, or other damage due to collisions.
  2. Keel condition for corrosion, delamination, or hull/keel "smile" fractures.
  3. Propeller shaft and rudder bearings for excessive wear.
  4. Signs of osmosis.
  5. Through hull bedding and sea cock operation.
  6. Existing anti-fouling paint adhesion and condition.

A fast bottom starts with a smooth hull and ends with a smooth hull. Chipped, peeling, or roller stippled bottoms are simply not fast. Why spend a boat load of money on new sails, just to have your bottom drag your position down in the standings. For the power boater, you can pay for a fast bottom, or take a few knots off the top end, and pay more at the pumps; the choice is yours. 

At Sheen Marine, we know how to make fast bottoms. We'll help you choose the best antifouling for your boating needs, perform bottom condition evaluations and adhesion tests to ensure the job is done right. Sheen Marine bottoms help you win races and improve fuel economy.


Hull or rudder damage are major red flags to the marine surveyor; they will be looking for them when they inspect your boat. Hull defects can significantly reduce the fair market value of your vessel and lead to insurability difficulties.

Sheen Marine hull and rudder repairs are virtually undetectable. They are completed using the proper methods, tools, and materials, to help ensure your bottom will pass the highest level of scrutiny and provide reliable service for the life of the vessel.


Many sailboats suffer from fractures at the join between hull and keel. Left unchecked, these "smiles" often lead to moisture ingress and progressive delamination with continued freeze thaw cycles.

Attempts to fill and fair these fractures often result in smile recurrence, sometimes before the next haul-out.  We can repair your hull/keel join so that only you smile, every time this is inspected in the future.

In addition, cast iron keels are subject to corrosion that erupts through the fiberglass encapsulation. This condition can also cause serious delamination and fail a marine survey. When our repair is completed, the keel will look like new and remain that way for many years to come.


Propeller shaft bearings wear proportionally with every revolution. Premature failure can occur due to excessive vibration or poor alignment. Rudder bearings wear with every turn of the helm, including those caused by wakes when the boat sits idle in the slip.

Before replacing a worn bearing, we'll advise if the gland should be replaced, which may be a good time to consider a dripless shaft seal.


Osmosis is the result of water penetrating the gelcoat and reacting with the polyester resin in the fibreglass layup. The resultant gaseous and acidic liquid deforms the gelcoat, appearing as a blister.

Even mild osmosis can be a deal breaker at resale time. If the sale does go through, blisters can knock 15% or more off the price. Not planning on selling? A bad osmosis report on an insurance renewal survey can be a concern to your agent and may affect your premium.

Though they can rarely be eliminated completely, we can reduce the appearance of blisters and thwart recurrence while retaining maximum vessel value.


Before applying bottom paint, our inspection reveals if through hull bedding has or may be about to fail, and also evaluates the condition of the seacocks. A failed through-hull may  let in more water than the bilge pump can discharge.

We will rebed or replace suspect throughhull fittings for your peace of mind and the safety of your crew.

Did You Know?

Many marine finishes are highly toxic, and may cause cancer. Before opening that can of resin or anti-fouling paint,
check the MSDS (Material Safety Data Sheet), and follow manufacturer`s directions for preparation, application, and disposal. 

Need Help?

There are so many options available, it can be quite confusing.

Often, higher technology paints require less annual maintenance than their lesser counterparts. Conversely, lower technology paints tend to build up, and then flake off, requiring complete bottom stripping. Despite higher initial cost, high technology paint can result in a much lower life-cycle cost.