Sikafloor®-29 NA PurCem®

High Strength Cementitious Urethane Coving and Detailing Mortar

Sikafloor®-29 NA PurCem® is a vertical grade, three-component, solid color, water dispersed polyurethane based/cement and aggregate mortar used for detailing work and coving. It has a finely textured smooth aggregate appearance that provides excellent resistance to abrasion, impact, chemical attack and other physical aggression. System is typically installed at 1⁄8 to 1⁄4  in (3 - 6 mm) thickness.

  • Can be applied on green concrete (typically 7 -10 days) after preparation (see surface prep section) and where substrate has tensile bond strength in excess of 218 psi (1.5 MPa).
  • Can be applied to concrete substrates where < 100% relative humidity is measured as per ASTM F2170.
  • Resists a very wide range of organic and inorganic acids, alkalis, amines, salts, and solvents. Consult Sika Technical Service for full details. Refer to the Sika PurCem Chemical Resistance Chart
  • Designed specifically for trowel applications to vertical surfaces.
  • Similar coefficients of thermal expansion to concrete allowing movement with the substrate through normal thermal cycling. It will perform and retain its physical characteristics through a wide temperature range from -40°F (-40°C) up to 248°F (120°C).
  • Bond strength in excess of the tensile strength of concrete, concrete will fail first.
  • Non-taint, odorless.
  • Can be applied over partially cured concrete substrates (> 4% mass (pbw –part by weight) as measured with Tramex® CME/CMExpert type concrete moisture meter surface moisture), full 28 days cure time is not necessary.
  • Behaves plastically under impact; deforms but will not crack or debond.
  • High abrasion qualities result from its aggregate structure.
  • Easily maintained.
  • Minimal maintenance costs, superior life cycle cost advantage versus tile.
  • Achieves highest performance ratings according to ASTM G21 resistance to fungi and ASTM D3273 resistance to mold growth.
  • Meets the requirements of USDA for use in food plants.