Mathys Pegaprim Exterior


We no longer stock this product, but can recommend Mathys Pegaprim Xpress as a great alternative.



We no longer stock this product; please contact our technical team on 0113 2455450 (option 2) or send a message to [email protected] where we will be happy to find an alternative product.

Mathys Pegaprim Exterior

Mathys Pegaprim Exterior is an acrylic primer for exterior applications which can be applied to most mineral substrates.It neutralises differences in the absorption characteristics of the substrate which provides substrates with uniform absorption and colour.

Features & Benefits

  • Reinforces the substrate and reduces absorption
  • Neutralises differences in absorption characteristics
  • Prevents differences in the glossiness of the topcoat
  • Very good hiding characteristics
  • Improves topcoat adhesion
  • Water vapour permeable

Technical Data

  • Density: ± 1,35 (weiss)
  • Gloss Level: Matt
  • Gloss level at 60º: Matt: ± 5%
  • Solids content in volume: 45 % (weiss)
  • Solids Content in weight: 58 % (weiss)

Drying Times At 20°C/RH 50%

  • Touch dry: 1,5 hours
  • Dry to recoat: 2-3 hours
  • Fully cured: 1 week

Theoretical Consumption

± 8 - 10 m²/l

Practical Consumption

Depends on several factors such as porosity and roughness of the substrate and material losses during application (see DIN 53220).

Surface Preparation

The substrate should be dry, clean and free of grease. Pegaprim Exterior may be directly applied over normally porous substrates and old, cleaned paint layers if they are in good condition. Not suitable for highly porous substrates; use Pegafix as a fixator in such cases.

Directions For Use

The product should be thoroughly stirred before use, to ensure homogeneity.

Application Conditions

> 5°C, < 80% R.H.

Application Methods

  • Brush: Use undiluted.
  • Roller: Use undiluted.
  • Airless Spray: Nozzle: 011 - 015 / Pressure: 180 - 200 bar. Apply undiluted
  • Air-Atomised Spray: Use undiluted.

Product Details

Data sheet

Brush, Roller, Spray
Touch Dry (at 20°C)
1,5 hours
Dry to Recoat (at 20°C)
2-3 hours
Fully Cured (at 20°C)
1 week
Min. Application Temperature
30 g/l
Recommended Dry Film Thickness
45 µm
Recommended Wet Film Thickness
100 µm
UN Number
Not regulated

Customer agrees that before placing an Order, Customer has read and understood the most up to date Product Data Sheet for the Product. Where we have access to the Product Data Sheet from the manufacturer, we will either provide a copy on request, or include a link to the Product Data Sheet available on the manufacturer’s website. Customer further agrees that we have no liability for any errors or omissions contained within the Product Data Sheets. For more information, please see our Terms & Conditions of Sale.

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Mathys Pegafix

This product is temporarily unavailable; in the meantime, our technical team recommend Wethertex ST1 Quick Dry Stabilising Primer as a great alternative - use discount code MAY10 at checkout to save 10%! Please note: it is important to check that any alternative product is suitable for your requirements, as our suggestion is given in good...

Price £24.71
In stock