Polyurethane

Polyurethane

POLYURETHANE

Polyurethane is a spray applied solvent free polyurethane coating. It has excellent anti-corrosion properties for steel and concrete. It also has extremely high abrasion, chemical resistance, elongation,excellent adhesion and anti- microbiological properties.

The detailed properties of Polyurethane are given here under :

Specifications

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TECHNICAL DATA PROPERTIES

Adhesion to Steel, Min+

  • Typical Value – 750 psi (5,175 kPa)
  • Test Method – ASTM D 4541

Cathodic Disbondment, Max

  • Typical Value – 12mm (1/2-in.) radius
  • Test Method – ASTM G-95 modified to 28 day

Flexibility

  • Typical Value – No cracking or delamination
  • Test Method – ASTM D 522 180° bend over 4-in. (102-mm) mandrel

Impact Resistance , Min

  • Typical Value – 40 in lbs (0.46 kg.m)
  • Test Method – ASTM D 2794 (5/8-in. [15.9mm] hemispherical head)

Abrasion Resistance, Max

  • Typical Value – 100-mg loss per 1,000 rev.
  • Test Method – ASTM D 4060, CS17 wheel, 1-kg weight

Chemical Resistance, Max

  • Typical Value – 5% change in mass, length or width after 30 days immersion
  • Test Method – ASTM D 543, 10% H2SO4, 30% NaCl, 30% NaOH, and #2 diesel fuel

Electrical Inspection

  • Typical Value – 0 holidays
  • Test Method – NACE RP 0274

Water Absorption, Max

  • Typical Value – 3.0%
  • Test Method – ASTM D 570