Rust stains can ruin new paintwork if not properly treated, often seeping through and causing discoloration. This guide explains how to prepare and prime surfaces to effectively block rust stains, ensuring a smooth, long-lasting finish. In this guide, we’ll show you how to prevent rust stains from affecting your paint job.
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 dust.
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 clean down with Zinsser Universal Cleaner & Degreaser to remove any contaminants. Rinse thoroughly with clean water to remove all residues. Allow to dry.
Thoroughly degrease with methylated spirit, changing the cloths regularly. 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. Patch prime all bare and filled areas with one coat of Cover Stain® in accordance with the manufacturer’s instructions.
Allow a minimum drying time of two hours in normal drying conditions. Bring forward patch primed areas with one coat of Cover Stain® . Allow to dry. Apply one full coat of Cover Stain® overall and allow to dry.
Decorate with two full coats of PermaWhite® in accordance with the manufacturer’s instructions. Allow a minimum drying time of two hours between coats.
For exterior projects decorate with two full coats of AllCoat® Exterior in accordance with the manufacturer’s instructions. Allow a minimum drying time of one hour between coats.
We recommend sanding off the rust first and priming with Cover Stain before painting.
Applying stain-killing primer-sealer Cover Stain will stop rust stains from bleeding through the topcoat.
No, but you can use a rust-inhibitor to slow down the oxidization process. Bulls Eye® 1-2-3 Deep Tint inhibits long-term rust from developing under the primer film when dry, making it ideal for priming interior and exterior metalwork.
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Computershare Governance Services
The Pavilions
Bridgwater Road
Bristol
BS13 8FD
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Tor Coatings Ltd
21 White Rose Way
Follingsby Park
Gateshead
Tyne & Wear
NE10 8YX