How To Update Window Mullions

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How to update window mullions

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It may not be in your vernacular just yet, but a window mullion is the aluminium that holds your window to its frame! They’re super easy to update, just follow these steps and they’ll look good as new in no time.

Tools and materials

180-grit sand paper

Butchers paper

Dust mask

Epoxy enamel spray paint

Heavy duty cleaning wipes

Painters tape

Plastic drop sheets

Rags

Scissors

Toothbrush

How to update window mullions

1. Clean your mullions

Before you do anything, get in there and give those window edges a good clean – sugar soap wipes work well for this. Make sure you get into all the ridges and indents – there will be a build-up of dirt and grime in those hard-to-reach spaces. Old toothbrushes also work well on these tight spots. Make sure you don’t have any peeling or flaking paint, and if your mullions are unpainted, make sure you apply a primer before you start (we didn’t need to, as ours were already a lovely beige colour!)

How to update window mullions

2. Sand your mullions

Sand your mullions down to a flat finish using 180-grit sand paper, and wipe clean with a rag. You want everything to be dust-free and dry before you start painting.

How to update window mullions

3. Tape and prepare your area

We can’t stress this enough – preparation is key! Measure out pieces of either butcher’s paper or newspaper so that your windowpane is completely covered and stick them on with painter’s tape – make sure you stick the paper right to the edges of the mullion. You’ll also want to put down a drop sheet and open any windows (turning on a fan is good too) in readiness for using your Epoxy spray.

How to update window mullions

4. Spray away!

This is the fun bit! Spray your mullions with your desired colour – we opted for Dulux Metal Shield Epoxy Enamel in Gloss Black for a nice, modern finish. Before starting, be sure to shake the can for at least two minutes (you’ll hear the balls inside rattling) so it’s well mixed. Open some windows, pop on your dust mask and you’re ready to go! Short, sweeping movements are the best way to apply your spray paint – make sure to hold the can about 10-25cm from the surface. You’ll need two or three coats – applying several coats of a light mist works better than one heavy coat.

How to update window mullions

5. Remove your tape and paper

Peel off the tape and paper once the paint is dry. If you do have any overspray, use mineral turpentine to remove it as soon as possible.

How to update window mullions

6. Stop and stare

Beige, be gone! Your window is now transformed….

How to update window mullions

Keep watching

Watch the full episode and more D.I.Y. projects from Make It Yours Episode 2: Master Bedroom Makeover by Geneva.

 

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Health & Safety

Please make sure you use all equipment appropriately and safely when following the advice in these D.I.Y. videos. You need to be familiar with how to use equipment safely and follow the instructions that came with the equipment. If you are unsure, you may feel it is safest to consult an expert, such as the manufacturer or an expert Bunnings Team Member.

Grave health hazards are linked to asbestos, which may be in homes built up to 1990. Health hazards may result from exposure to lead-based paints in older materials and copper chromium arsenic (CCA) treated timber. For information on the dangers of asbestos, lead-based paint and CCA treated timber and tips for dealing with these materials contact your local council's Environmental Health Officer or visit our Health & Safety page. You can also use a simple test kit from Bunnings to indicate the presence of lead-based paint.
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