Paint a galvanized fence

Guided shopping manual

Guide to painting a galvanized fence

A galvanized fence needs careful cleaning and the right primer before any lasting colour coat is applied. This guide uses Mipa WEP 1000-20, Mipa WEP 9500-25, Mipa PU 250-50 and the matching components for zinc coated metal.

What do you need to paint a galvanized fence?

Cleaning and degreasing

Mipa silicone remover in liquid format or Mipa silicone remover spray removes grease, dirt and handling residue before sanding, priming or topcoating.

Water based epoxy primer

Mipa WEP 1000-20 with Mipa WEP 9500-25 hardener and Mipa WBS deionised water prepares galvanized, aluminium or difficult coated metal for the topcoat stage.

Aerosol primer for detail areas

Mipa 1K Epoxy Primer Spray supports smaller metal sections and detailed fence areas before the final coating method.

Zinc aluminium repair

Mipa Zinc-Aluminium Spray is useful on suitable prepared zinc coloured repair points where a silver grey zinc aluminium finish is needed.

Semi gloss PU topcoat

Mipa PU 250-50 in the relevant price groups gives the fence or railing a durable semi gloss industrial finish in the chosen colour method.

Topcoat components

Mipa PUR Plus Hardener A60 and Mipa 2K Thinner Normal V 25 are used in the PU topcoat stage and help the final coating cure and apply correctly.

How to paint a galvanized fence

  1. 1
    Wash and degrease

    Clean the galvanized fence thoroughly so dirt, oils and surface contamination do not reduce adhesion.

  2. 2
    Remove loose material

    Key edges, welds and detailed areas so the primer stage can bond to a clean and stable surface.

  3. 3
    Prime the substrate

    Use the epoxy primer method matched to the metal type before the final semi gloss coating is applied.

  4. 4
    Apply the PU finish

    Apply Mipa PU 250-50 with the correct hardener and thinner so the final layer protects the prepared metal and gives an even semi gloss look.

  5. 5
    Respect drying before service

    Let the galvanized fence cure before frequent touching, gate movement, cleaning or weather exposure becomes heavy.

Which galvanized fence coating method should you choose?

Water based epoxy primer method

Use WEP 1000-20 when the galvanized surface needs a primer designed for zinc coated metal before topcoating.

Zinc coloured repair points

Use Zinc-Aluminium Spray for suitable prepared details that need a silver grey zinc aluminium appearance.

PU semi gloss finish

Use PU 250-50 for the final colour and sheen after the galvanized surface has the right primer base.

Technical details

  • Mipa PU 250-50 is a 2K polyurethane acrylic semi gloss coating for high quality work on metal constructions.
  • Mipa PU 250-50 uses Mipa PUR Plus Hardener A60 and Mipa 2K Thinner for the listed topcoat method.
  • Mipa WEP 1000-20 is a water based 2K zinc phosphate epoxy primer for steel, zinc coated steel, aluminium and common plastics.
  • Mipa WEP 1000-20 can be brushed, rolled or sprayed and uses Mipa WEP 9500-25 hardener with Mipa WBS deionised water.
  • Galvanized metal needs careful cleaning and a suitable primer because zinc coated surfaces are difficult for ordinary paint adhesion.
Practical suggestion

Prepare one less visible part of the galvanized fence first and check adhesion, colour and sheen before coating the most visible faces.

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