Add anti slip finish to a boat deck

Guided shopping manual

Guide to adding anti-slip finish to a boat deck

An anti-slip boat deck finish should create grip without careless texture build-up, so cleaning, sanding, primer choice and controlled application matter as much as the coating itself.

What do you need to add anti-slip finish to a boat deck?

Cleaning and degreasing

Mipa silicone remover in liquid or spray format removes grease, silicone and wax before sanding, priming or coating.

Surface keying

MP Hand Block Soft or MP Sanding Sponge helps dull glossy areas and keep curved edges even before primer or topcoat.

Epoxy primer for mixed substrates

Mipa EP 100-20 is the epoxy primer method for steel, zinc-coated steel, aluminium, fibreglass and mineral substrates before the finishing coat.

Anti-slip PU deck finish

Mipa PU 350-50 is a semi-gloss 2K polyurethane anti-slip coating for walkable surfaces and construction parts.

Anti-slip hardener and thinner

Mipa PUR Plus Hardener A60, Mipa EP 950-25 hardener, EP thinner and 2K thinner are used only with their matching primer or finish stage.

How to add anti-slip finish to a boat deck

1
Clean the deck

Remove salt, grease, wax and old dressing before sanding so the textured finish bonds to the deck surface.
2
Sand and define the area

Key the deck and mask the anti-slip zone cleanly so texture ends where the walking area ends.
3
Prime where needed

Use the epoxy primer stage on exposed or mixed substrates before applying the anti-slip PU finish.
4
Apply the anti-slip coating

Mix the anti-slip PU finish with the correct hardener, then apply an even texture without flooding edges or corners.
5
Allow proper cure

Keep foot traffic and standing water away while the anti-slip coating hardens.

Which anti-slip deck products should you choose?

For grip zones

Choose PU 350-50 when the deck area needs a textured anti-slip finish rather than a smooth coating.

For smooth deck areas

Choose the standard boat deck coating page when grip texture is not the main goal.

For exposed substrate

Use the epoxy primer stage before anti-slip coating where sanding reaches bare or mixed substrate.

Technical details

Mipa PU 350-50 is listed as a 2K polyurethane acrylic anti-slip paint with DIN EN 16165 R 11 anti-slip property.
Mipa PU 350-50 can be applied by brush or roller according to the product information.
The PU 350-50 method lists Mipa PUR Plus Hardener A60 or Mipa PU 912 hardener options, each with its own mixing ratio.
This page is for above-water walking areas, not underwater deck or hull coating.

Practical suggestion

Test the texture on a small offcut or hidden area first, because anti-slip coatings should feel grippy underfoot without becoming too sharp for cleaning or bare-skin contact.