Mylands Wall Primer & Undercoat - Grey

Mylands Wall Primer & Undercoat is a high opacity, low odour, micro-porous, water-thinned primer s...

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Mylands UKMylands Light/Grey Primer & Undercoat - Multi-Surface Primer & Undercoat - 1 Litre
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Product Information

Full details

Mylands Wall Primer & Undercoat is ideal for professional decorators and DIY enthusiasts looking for a reliable, high-opacity base layer for internal walls. Its primary benefit is providing excellent adhesion and a consistent grey-toned surface that improves the coverage of subsequent topcoats, though users should note it is specifically formulated for internal applications and requires proper surface prep for the best results.

All features

ColourGrey
Model Part Number500100032/03
BrandMylands

Extended Product Information

FAQs

Is this primer suitable for exterior walls?

No, Mylands Wall Primer & Undercoat is formulated exclusively for internal use.

Can I use this over old gloss paint?

While it offers excellent adhesion, it is recommended to lightly sand glossy surfaces to create a profile before priming.

How long does it take to dry?

Drying times can vary based on temperature and humidity, but it is generally touch-dry within a few hours.

Does the grey colour show through my topcoat?

When using high-quality topcoats, the grey tone is designed to enhance depth, not show through. Always apply two coats of topcoat for the best finish.

Can I spray this product?

It is primarily designed for brush and roller application. Consult spray equipment manuals for thinning requirements.

Is this safe to use in a child's bedroom?

Yes, its low-odour, water-thinned formulation is suitable for indoor living spaces.

Troubleshooting

Primer is not sticking to the surface

Ensure the surface was thoroughly cleaned of dust and grease prior to application.

Uneven finish after one coat

Ensure you are applying an even layer and allow sufficient drying time before applying a second coat if necessary.

Pros and Cons

Pros

  • Excellent adhesion on various surfaces
  • Breathable micro-porous finish
  • Low odour formula for interior comfort
  • Superior opacity for better topcoat results

Cons

  • Suitable for internal use only
  • Requires specific surface preparation
  • Grey tone may influence final colour of lighter topcoats

Setup, Compatibility & Care

Before application, ensure the substrate is clean, dry, and free from dust, grease, or loose debris. For new plaster, ensure it is fully cured according to the plaster manufacturer's guidelines. Apply using a high-quality brush or roller designed for water-based paints. When storing, ensure the lid is tightly sealed and kept in a cool, dry place away from frost. Cleanup is straightforward: simply rinse brushes and rollers with clean water immediately after use. Always test a small, inconspicuous area if you are unsure about the substrate compatibility.

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