Price £87.99
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Renner YC-M402 is a general water-based hardener that is ideal for Matt topcoats.

Renner YC-M402 is a polyurethane hardener designed for two-pack water-based systems such as Renner YL-M461 White PrimerRenner YL-M461 Clear Sealer and Renner YL-M604 . Once activated with the clear basecoats or pigmented primers, it will improve grip for overcoating. It will have a pot life of 3 hours after mixing.


  • Hardens Matt coatings
  • Easy to mix
  • Extended pot life
  • High solids
  • Won't affect Sheen

Technical Information

Brand Renner
Application N/A
Coverage (G/M²) N/A
Coats N/A
Touch Dry N/A
Sand Dry N/A


Mixring Ratio See Part A
Activator N/A
Thinner N/A
Pot Life 3 hours
Solids Content % 70 ± 1
Specific Gravity (KG/L) 1.1
Viscocity N/A
VOC (G/L) 393


Tech Data Sheet


Always use a calibrated and graduated clear paint mixing cup to mix the material. They are used for accurately mixing paints, resins and lacquers to the correct mixing ratio.


Although it is possible to blend manually through vigorous stirring, for best results ensure the hardener is added slowly under mechanical stirring conditions. This will ensure optimal consistent results and avoid air bubbles. This is especially important when mixing high Gloss Sheen levels.


When not in use keep the container well closed in dry conditions. Always close tightly after taking the quantity required for catalyst.

Please Note

The introduction of crosslinking agent in a product may result in an increase in viscosity. Do not exceed the maximum blend.

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