ARDEX PU 50 is a ready-to-use, one-component, polyurethane resin system formulated to suppress residual moisture in concrete with RH readings up to 98%. When used over radiant-heated concrete slabs, ARDEX PU 50 suppresses residual moisture up to 85%. ARDEX underlayments may be installed over the second coat in as little as one hour. ARDEX PU 50 comes in a ready-to-use, resealable container.
Reduces moisture vapor emissions in concrete to acceptable levels
Coverage: Approx. 500 sq. ft. (46.5 sq. m) per unit at 2 coats of 4 mils (100 microns) each
Approx. 200 sq. ft. (18.5 sq. m) per gallon at 2 coats of 4 mils (100 microns) each
Approx. 4.9 sq. m per liter at 2 coats of 4 mils (100 microns) each
(Will vary with concrete surface profile, porosity and texture)
Effect of 14 pH Solution (ASTM D1308): No effect
Walkable: When completely dry (approx. 60 minutes); no max. provided surface is protected
Install ARDEX Underlayment: 1 – 24 hours (after the application of the second coat)
Install Floating/Non-Adhered Floor Covering: 1 – 24 hours (after the application of the second coat)
VOC: 0 g/L
Packaging: 2.5-gallon (9.5 L) jug
Storage: Store at temperatures between 40 and 90˚F (5 – 32˚C). Do not allow to freeze.
Shelf Life: 1 year, if unopened
Warranty: ARDEX L.P. Standard Limited Warranty applies. Extended system warranty is available. Please note that training by the ARDEX Technical Service Department is required for extended warranty eligibility. Please contact the ARDEX Technical Service Department for details.
For complete product technical information, click on the Downloads tab and open the Technical Data download.