Mylands Plant Based Ms Primer & Undercoat - Grey

A multi-surface, water-based, quick-drying, anti-corrosive primer and undercoat for use on new and...

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

Designed for DIY enthusiasts and professionals alike, the Mylands Plant-Based Multi-Surface Primer & Undercoat is the ideal foundation for achieving a flawless finish on virtually any substrate, including wood, metal, plastic, and masonry. This water-based, quick-drying, and anti-corrosive formula offers exceptional opacity and adhesion, effectively preparing new or previously painted surfaces for topcoats; however, while it is versatile for both interior and exterior use, users should ensure the surface is properly cleaned and degreased beforehand to guarantee optimal bond strength.

All features

ColourGrey
Model Part Number502000008/03
BrandMylands

Extended Product Information

FAQs

Can I use this primer on exterior metal?

Yes, it is an anti-corrosive formula suitable for interior and exterior use, including metal surfaces.

Do I need to sand before applying this primer?

While it has excellent adhesion, light sanding is always recommended on glossy or non-porous surfaces to ensure the best possible bond.

Is this primer compatible with all Mylands topcoats?

Yes, it is specifically designed to be used under Mylands Plant-Based Paint lines, including Dead Matt, Eggshell, Satin, and Gloss.

How long does it take to dry?

As a quick-drying formula, it is designed for rapid turnover, though exact times depend on temperature and humidity.

Is this product low-odour?

Yes, it is a water-based, low-odour primer making it well-suited for indoor home improvement projects.

Can it be used on masonry?

Yes, this primer is formulated to work on porous surfaces like plaster and masonry.

Troubleshooting

Primer is not adhering to the surface

Ensure the surface was cleaned of all grease, wax, or silicone and lightly abraded with fine-grit sandpaper before application.

Visible brush marks after drying

Ensure you are using a high-quality synthetic brush and avoid overworking the paint as it begins to set.

Poor coverage on dark surfaces

Apply a second, even coat of primer, allowing the manufacturer's recommended drying time between applications.

Pros and Cons

Pros

  • Excellent adhesion to difficult substrates like uPVC and plastic
  • Environmentally conscious plant-based formula
  • Extremely versatile for both interior and exterior applications
  • Quick-drying properties speed up multi-stage painting projects
  • Low odour makes it ideal for occupied living spaces

Cons

  • Requires thorough surface preparation for maximum performance
  • Not intended as a standalone finish; must be topcoated
  • Specific drying conditions are required for optimal exterior durability

Setup, Compatibility & Care

To ensure success, surfaces must be clean, dry, and free from loose or flaking material, dust, or grease. For non-porous surfaces, a light scuff-sand improves adhesion. Apply using a high-quality brush or roller designed for water-based paints. Ensure the ambient temperature is above 10°C during application and drying. Once finished, clean tools immediately with warm soapy water. Store the container in a cool, dry place, ensuring the lid is tightly sealed to prevent the product from drying out or skinning over.

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