How to Paint Interior Mildew Areas

Zinsser PermaWhite® is the ultimate solution for tackling fungal degradation on painted surfaces. This specialised paint not only blocks fungal degradation permanently but also provides a durable and attractive decorative finish.

PermaWhite has an advanced formula that’s designed to resist moisture, making it the best interior paint to prevent mould- especially in areas prone to dampness and high-humidity. Read on to find out how to get rid of mildew on paint, keeping walls clean, fresh and mould-free for years to come.

Required Steps

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Step 1 - Surface Preparation

All surfaces must be clean, dry and free from anything that will interfere with the adhesion of the materials to be applied. Remove loose and failing material by scraping or brushing with a stiff bristle brush to a sound edge. Feather sound edges with a fine grade abrasive paper. Remove all visible signs of organic growth and treat the areas with Zinsser Mould Killer in accordance with the manufacturer’s instructions. Allow to dry.

In areas with remaining sound paint wash clean down with Zinsser Universal Cleaner & Degreaser to remove any contaminants. Rinse thoroughly with clean water to remove all residues. Allow to dry. Fill any cracks and small surface defects with a suitable filler as appropriate in accordance with the manufacturer’s instructions. Allow to dry. Rub down with a fine grade abrasive paper. Remove all dust.

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Step 2 - Priming

Prime all areas to be decorated with one full coat of B-I-N® primer sealer. Allow a minimum drying time of 45 minutes in normal drying conditions.

For a water-based, low odour alternative to B-I-N®, use B-I-N® AQUA.
B-I-N® AQUA has the same performance advantages as B-I-N with easy soap and water clean-up and Trace VOCs.

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Step 3 - Decoration

Decorate with two full coats of PermaWhite® in accordance with the manufacturer’s instructions. Allow a minimum drying time of two hours between coats.

FAQs

You must remove mould and mildew first before painting. Clean the affected area with Zinsser Universal Degreaser & Cleaner, rinse thoroughly and allow to dry.

Next, apply Zinsser Mould Killer and Remover to the affected areas to prepare them before painting and provide a long-lasting finish.

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Bristol
BS13 8FD
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Tyne & Wear
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