Problem Solver - Hardboard

Hardboard (not to be confused with hardwood), also known high-density fiberboard, is a type of fiberboard, which is an engineered wood product. This product is also often known as Masonite 

Preparation

Ensure surface is sound dry and clean

If any mould or mildew is apparent, treat with a suitable fungicidal solution, rinse again with clean water and allow to dry.

Basecoat

Once the surface is clean and all loose material has been removed, treat with a suitable primer and undercoat and allow to dry.

Topcoat

Apply a suitable topcoat.

In a choice of finishes.