Paint metal chimney caps and flashings

Guided roof detail coating

Guide to painting metal chimney caps and flashings

Metal chimney caps and flashings sit in exposed areas where rain, sunlight, fasteners and edges all matter. The job needs clean metal, stable old coating, primer on exposed steel and a finish that can handle roof-detail shapes without blocking water paths.

What do you need to paint metal chimney caps and flashings?

Cleaning and degreasing

Mipa silicone remover in liquid or spray format removes wax, grease and silicone so sanding, primer and topcoat work starts from a clean metal surface.

Epoxy primer system

Mipa EP 100-20 with Mipa EP 950-25 hardener and Mipa EP Thinner creates a zinc phosphate epoxy primer layer for steel, aluminium, zinc-coated metal and other demanding substrates.

Single-coat metal roof finish

Mipa VC 250-30 is a thixotropic satin matt single-layer coating for steel, zinc-coated steel, aluminium and PVC surfaces used on roofs, panels, pipes and exterior metal details.

Spray primer and topcoat repair

Mipa DS 4 in 1 Spray is a fast drying high-build acrylic spray for priming, corrosion protection and topcoat repair on steel, galvanized metal, aluminium, GRP, wood and common automotive plastics.

How to paint metal chimney caps and flashings

1
Clean and inspect

Clean the chimney cap, counter-flashing and visible metal edges, then inspect seams, screw areas, rust spots and edges before coating starts.
2
Remove loose rust and paint

Wire brush, scrape or sand until loose corrosion and peeling paint are gone and stable edges are feathered.
3
Treat rust and prime

Use rust treatment where suitable, then prime exposed steel or repaired areas with the epoxy primer system.
4
Coat the visible metal

Apply the selected metal coating by the method that gives the best coverage on the shape and access point.
5
Check water paths

Keep coating clear of drainage details, seal failures and moving joints that need repair before paint can protect properly.

Which chimney cap and flashing products should you choose?

For larger flashing areas

Choose VC 250-30 when the metal detail can be brushed, rolled or sprayed as part of a prepared roof-detail coating job.

For small caps and edges

Choose DS 4 in 1 Spray for smaller metal caps, cut edges and compact detail repairs where controlled spray application is practical.

For exposed steel

Choose the EP primer system where cleaning and sanding reveal bare steel or old rust has been removed.

Technical details

Mipa VC 250-30 is intended for metal constructions such as roofs, pipes, panels, doors, containers and vehicle constructions.
VC 250-30 can be applied by brush, roller or spray to prepared steel, zinc-coated steel, aluminium and PVC surfaces.
Mipa DS 4 in 1 Spray offers corrosion protection, primer, topcoat and high-build properties for small spray repair work.
Chimney flashings must remain correctly sealed and able to move with the roof detail; paint is not a replacement for failed waterproofing.
Cleaning and edge preparation are important around fasteners, folds and cap corners where moisture tends to collect.

Practical suggestion

Mask masonry, roof covering and sealant edges carefully. Clean lines around a chimney detail make the repair look deliberate and keep coating away from parts that need flexibility.