Cemflex PU 525


High-performance, fast curing, single component polyurethane sealant. Standard package: 600 ml cartridges

Categories : epoxy grout


Cemflex PU525 is a high-performance fast curing single component polyurethane sealant. When cured it will form a tough and flexible seal and its bond is capable of cyclic, expansion, and compression movement. Joints or fabrications formed with this sealant can be expected to extend and compress a total of 50% (± 25%) of original joint dimensions. Cemflex PU525 withstands normal weathering conditions such as rain, sunlight, snow, sleet, ultra-violet radiation, ozone, atmospheric contamination, and pollution.  Its excellent weather ability enables it to retain its original properties after years of exposure. Its physical properties remain relatively unchanged over a wide temperature range (-35ºC to 80ºC).
  • Granite, sandstone, and marble
  • GRC, Fiberglass & Specialty panel systems
  • Potable water tanks
  • Metal curtain wall
  • Water tanks
  • Precast and tilt-up panels
  • Sealing construction and expansion joints
  • For sealing of concrete joints in low traffic roadways.
  • Industrial Flooring


  • Enhanced cure rate by reaction with atmospheric Oxygen
  • Non-staining to most substrates 
  • Low modulus 50% (+ 25%) and high movement accommodation 
  • Excellent durability 
  • Fast track free time and cure rate 
  • Excellent adhesion to most materials including metals, concrete, and brick 
  • One component, no mixing required 
  • High movement accommodation (± 25%) ASTMC719
  • Paintable  
  • Non-staining 
  • Excellent application characteristics 
  • Good slump resistance 
  • Wide color range

Standard package: 600 ml cartridges

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