AQUASCUD 420 liquid-applied waterproofing elastic systems


Definitive waterproofing of all flat roofs, old and new For waterproofing without demolition.

AQUASCUD System 420 is a waterproofing system, offering a definitive solution and without having to resort to demolition, for balconies, terraces, roof decks and all flat surfaces, even with flooring installed. It is a fast, practical and extremely elastic waterproof protective shield with CORE CURING TECHNOLOGY for effective curing even under low temperature conditions and partially damp surfaces. AQUASCUD System 420 consists of: - AQUASCUD 420, elastic two-component waterproofing compound; - AQUASCUD JOIN, elasticised staff bead; - AQUASCUD JOIN BT, adhesive staff bead; - AQUASCUD LINE, a draining gutter profile to finish and protect flooring edges; - AQUASCUD BASIC: elasticised microporous water-repellent polypropylene membrane, which is roughened thanks to special processing, allowing perfect adhesion to the waterproof coating;

Where to use it

  • Waterproofing of terraces or flat roofs, side-walks, balconies and sloped floors, even with flooring already installed
  • Substrates in general, also lightened with expanded clay


  • Fast curing allowing for short waiting times between the first and second coat and subsequent tiling, even under low temperature conditions (all in 24 hours)
  • Effective curing on set surfaces, even partially wet
  • Reduced risk of damage in case of sudden contact after work with rain, fog
  • Excellent adhesion to all cement, masonry, ceramic and marble surfaces
  • No demolition and disposal, applicable on existing floor and surfaces with micro-cracks
  • Final intervention less than 3mm thick
  • Allows for direct application of the flooring
  • Resistant to U.V. radiation
  • Excellent protection of screed against the action of un/freezing and efflorescence
  • Low environmental impact thanks to reduced CO₂ emissions, very low Volatile Organic Compound emissions (VOC), components obtained from recycling processes

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