weberpremix 500 prime

Product formerly named: formerly Primer.500 GYP

Synthetic based primer weberpremix 500 prime is a co-polymer acrylic emulsion designed to prime absorbent concrete, gypsum substrates and lightweight blocks (Autoclaved Aerated Concrete Blocks) prior to the application of gypsum and cement based plaster (including colored plaster). weberpremix 500 prime prevents over-rapid absorption of water into the substrate and prolongs trowel ability time.

Surface of application


Available packaging

Lebanon Syria Jordan KSA UAE Qatar Kuwait Oman
5 L 5 L 5 L 5 L 5 L 5 L 5 L 5 L
10 L 10 L 10 L 10 L 10 L 10 L 10 L 10 L
15 L 15 L 15 L 15 L 15 L 15 L 15 L 15 L

Documentation and brochures

To know before applying

  • The substrate must be perfectly sound, clean, dry and free from grease, oil, dust or any friable matters.
  • Avoid forming of puddles.
  • Shake container well before use.
  • Apply the weberpremix 500 evenly, using a brush, roller or small broom 

For more information please refer to the technical data sheet of the product

Features and benefits

- Prolongs trowelability time of the plaster - For gypsum and cement plasters - Works with colored plasters as well


  • Not applicable on metal substrate
  • Extremely porous substrates may require two priming coats.
  • wberpremix 500 should be left to dry to a clear thin film before applying the plaster

This product fits for these following projects