Preparation:
Always ensure that all surfaces are clean, oil-free, and dry. Clean the surface and remove any oil and grease with a suitable cleaner, then sand the surface with dry sandpaper. Carefully remove dust with fresh water.
Painting:
Fiberglass:
Sand the surface and remove dust.
Steel:
Remove salt and other contaminants by cleaning (high-pressure) with fresh water. Remove all rust and loose material by blast cleaning or wire brushing. Remove dust.
Aluminum:
Wash with fresh water and a pressure washer. Blast clean without metallic abrasives. Sand, clean, and dry the surface.
Plywood:
Sand the surface and remove dust. Seal the dry and clean surface with suitable Hempel Sealer 599.
Previously treated surface:
Sand, clean, and dry the surface.
Painting:
Unpainted surfaces below the waterline:
Prime porous surfaces by thinning the product used for the first coat with Hempel Thinner 845as specified: max. 20%.
Apply a total of 3–5 coats to achieve the full film thickness.
If necessary, add thinner: max. 5%.
Overcoat with the specified HEMPEL primer/tie coat and selected antifouling paint while the product is still tacky.
It is very important to apply a total dry film thickness of at least 300 microns for aluminum surfaces.
Unpainted surfaces above the waterline:
Prime porous surfaces by thinning the product used for the first coat with Hempel Thinner 845as specified: max. 20%.
Finally, apply 2 coats of the product. If necessary, add thinner: max. 5%. Overcoat with the chosen topcoat.
Previously treated surface:
Sand, clean, and dry the surface. Apply 1 coat of the product. If necessary, add thinner max. 5%. Overcoat with the chosen topcoat.
Mixing ratio:
2:1 by volume. Mix the base and add the hardener. Mix thoroughly. After mixing the paint, wait several minutes for air bubbles to disappear.
Previous paint layer: Hempel’s Sealer (for plywood)
Pot life: 6 hours
Shelf life: 3 years from the date on the lid
Read the guide – Hempel Light Primer – Complete instructions for epoxy painting of boat hulls.
