The M10 is the newest generation of the International 470 Class boat, developed specifically for mixed crews. The design focuses on improved crew ergonomics, optimized kinetics, aerodynamic efficiency, and higher performance across a wider range of conditions.

The M10 offers highly responsive steering, refined balance, and excellent feedback, helping crews make precise tactical and technical decisions during racing.

Yes. The M10 includes thoughtfully designed systems and adjustment options that allow sailors to tailor setup preferences while remaining class compliant.

We offer options for most control systems on the boats. Scroll down the page to see what can be customised.

Yes. Many teams send us pictures with their own personal systems for us to copy.

All teams have something slightly different, but generally most top teams choose the continuous rig tension system (Option c) , the 4:1 up  with 2:1 down centreboard system (Option a) and the carbon jib brackets. These are the only 2 systems that most top teams have in common.

Small gel coat repairs are relatively easy to do. 

 What is Gelcoat made up of?

Gelcoat is a polyester product that is cured by using a catalyst called MEKP. (Methyl Ethyl Ketone Peroxide)

MEKP is a dangerous substance and should be treated as such when using, being very careful not to get any on your skin or in your eyes.

 How can I get the catalyst – MERK?

We cannot ship MEKP so you will always need to buy it separately from your local marine store or fibreglass manufacturer.

 How much MERK do I need?

The amount of Catalyst varies depending on the conditions you are using it in, but around 2%-3% will always work.

 It is best to use a small syringe or dropper to get the required catalyst rate.

If you have mixed 100gm of gelcoat, then you are aiming for 2ml of catalyst.

 What are the Gelcoat colours?

Gelcoats colours are not always a 100% perfect match.

Colour will vary depending on the depth of the repair and the batch.

470  White-  LS30    White PA 337

470  Grey- Grey RAL 7035

Blue = is supplier by Nuplex who have their own code which is not an international code

 Does Mackay Boats supply gelcoat?

We supply a small tin (of each relevant colour) with each new boat.

Order additional gelcoat from our store, although it cannot be shipped by courier.

How do I do gelcoat repairs?

Doing gelcoat repairs is an art that improves with experience.

Making sure the surface is prepared well and keyed up is critical.

Overfill and then sanding back is a slow and time-consuming process.

 Be very careful not to scratch the boat around the repair.

You shouldn’t sand the original surface around the repair with any paper coarser than 600grit.

Mask around the repair to protect the boat.

You can initially use a file or 150g to take the high parts off the filling, but don’t use the coarse paper for too long or you will end up with scratches in the finished repair.

 Once you have it fair with 600g, you can work your way through the sandpaper grades until you finish with 1500grit before cutting and polishing.

 We would typically use 600g, then 800g or 1000g, then 1200g, then finally 1500g.

Please watch a demonstration: Fitting a mylar gasket