Alsan® Premiflex

Alsan® Premiflex is a ready-to-use one-component flexible polyurethane primer for Alsan® 310, Alsan®400 and Alsan®500 waterproofing systems.


Alsan® Premiflex is suitable on:
- bituminous membrane sanded or self-protected with slate chippings,
- synthetic membrane TPO, EPDM or PVC,
- timber,
- rigid PVC,
- concrete.

Alsan® Premiflex can be also use on existing Alsan® 310, Alsan® 500 and Alsan® Quick 500 waterproofing systems such as refurbishment or local reparation.


Alsan® Premiflex must be applied with a brush or a roller, according to technical instructions. Ensure that the product is well mixed in order to obtain a proper homogenization of components. Product cleaning: use Diluant V or Diluant L (thinners).


  • Cans: 5 kg or 20 kg
  • Storage: 9 months in original, unopened container turned upside-down, away from any source of heat
  • Storage temperature: 5°C to 30°C
  • On the job site storage temperature will be 10°C to 30°C
  • Approximate consumptions:
    - About 250 g/m² on concrete
    - About 300 g/m² on tiles or asphalt products

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