Mylands Primer & Undercoat - Grey - 10 Litre

A high opacity, low odour, micro-porous, water thinned wall primer sealer displaying excellent adh...

Best current price£35.00from Mylands UK

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

Full details

The Mylands Primer & Undercoat - Grey is designed for professional painters, DIY enthusiasts, and homeowners looking to achieve a high-quality finish on interior walls. It serves as a high-opacity, low-odour foundation that ensures excellent adhesion, making it ideal for new plaster or patch-repaired surfaces; however, users should note that it is specifically formulated for internal applications and is not intended for high-moisture exterior environments.

All features

ColourGrey
Model Part Number500100032/13
BrandMylands

Extended Product Information

FAQs

Can I use this primer on exterior walls?

No, this product is specifically designed for internal applications and is not formulated to withstand outdoor weather conditions.

Is it suitable for use under all paint types?

It is highly recommended for use under Mylands water-based finishes; check with your specific topcoat manufacturer for compatibility.

How long does it take to dry?

Drying times can vary based on ambient temperature and humidity, but it is typically touch-dry within a few hours. Consult the container label for specific recoat intervals.

Do I need to thin the primer?

This is a water-thinned primer that is usually ready for direct application, but small amounts of water can be added if required by your specific application method.

Why is the primer grey?

A grey primer helps in achieving better coverage for mid-to-dark colours and makes it easier to see where the product has been applied during the painting process.

How do I clean my brushes after use?

Because this is a water-based product, you can clean all application tools using warm water and a small amount of mild soap.

Troubleshooting

Primer is not sticking to the surface

Ensure the surface is properly cleaned and free from dust or grease; sand down glossy areas before application.

The finish looks uneven or 'flashing'

Apply a second coat or ensure the surface is fully sealed before applying the final topcoat to provide a uniform absorption base.

Pros and Cons

Pros

  • Excellent coverage on new and repaired plaster
  • Easy cleanup due to water-thinned formula
  • Minimal environmental impact with low-odour chemistry
  • Provides a reliable foundation for consistent paint results

Cons

  • Not suitable for external masonry or wet-room environments
  • Grey base requires careful topcoat selection for very light colours
  • Requires proper surface preparation for best performance

Setup, Compatibility & Care

Before application, ensure the substrate is free from dust, grease, and loose material. If applying to new plaster, wait until the surface is fully cured. The product is compatible with a wide range of water-based decorative paints, specifically those within the Mylands range. For cleaning tools, simply wash brushes and rollers thoroughly with warm soapy water immediately after use. Always store the container in a cool, dry place and ensure the lid is sealed tightly to prevent the product from drying out.

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