UL XP-421

UL XP-421
Pure Polyurea

UL XP-421 is a pure polyurea coating designed for applications requiring extreme impact and abrasion resistance. It features high elongation, moisture resistance, and a long cure time, making it ideal for durable flooring and other smooth surface applications.

Technical Data

  • Application Equipment: High-pressure plural component spray equipment with a 1:1 volume ratio and 2,000-2,500 psi fluid pressure capability. Equipment must include material heat control and impingement mixing capability.
  • Mix Ratio: 1:1 by volume
  • Gel Time: 5-10 seconds

Physical Properties

  • Elongation: 197% (ASTM D412)
  • Hardness (Shore D): 58 (ASTM D2240)
  • Tear Strength: 798 pli (ASTM D624)
  • Tensile Strength: 3804 psi (ASTM D412)
  • Taber Abrasion: 28 mg loss/1000 cycles (ASTM D4060, CS17 wheel)
  • Impact Resistance: 320 in/lbs, Pass (ASTM D2794)
  • Salt Spray Resistance: Rating 9 (ASTM B117)

Recommended Applications

Flooring and smooth surface coatings requiring high durability and resistance to impact and abrasion.

Packaging

  • 55-gallon drums & 275-gallon totes.

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