Wakol PU 280 Moisture Barrier 2.5 Gallon

One-component waterproof primer for priming porous/absorbent and non-porous subfloors and for rigidifying soft subfloor surfaces. WAKOL PU 280 Moisture Barrier is a premium moisture barrier for "green" concrete slabs and for concrete and offers two levels of moisture protection.

One component premium moisture barrier and primer for:

• Porous/absorbent subfloors 
• Non-porous/non-absorbent subfloors 
• Solidifying soft subfloor surfaces (including gypsum and lightweight concrete) 
• “Green” concrete slabs 
• Encapsulating non-water-soluble adhesive residue (including “cut-back”) 
• Primer / moisture retarder on plywood substrates 
• Concrete with residual moisture prior to installation of flooring

Coverage and Application

• One coat will block moisture in concrete slabs up to12 lbs. /1000 sq. ft. / 24 hour (ASTM F 1869) or up to 90 % rH (ASTM F 2170-02) 
• Two coats will block moisture in concrete slabs up to 18 lbs. / 1000 sq. ft. / 24 hours (ASTM F 1869) or up to 98 % rH (ASTM F 2170-02).  No moisture test required: The concrete must be surface dry, at least 28 days old and must have an intact structural waterproofing membrane beneath the slab. 
• Two Coats can also be used to block moisture up to 6 lbs. / 1000 sq. ft. / 24 hours (ASTM F 1869) or up to 85 % rH (ASTM F 2170-02) over-radiant heat. 
• Jobsite conditions must meet ASTM, NWFA, or RFCI Guidelines. Doors and windows must be installed and the HVAC running to simulate the living environment climate conditions at work site: 60°F to 75°F / 15°C to 24°C, 40% to 65% relative humidity. Acclimate materials during cold periods properly. 

Odor and Stability

• Very slight non-offensive odor.
• Zero VOCs.
• Shelf life of one year in an unopened container.

Necessary Tools and Materials

• No mixing required.
• Solvent free, water free.
• Mineral spirits before primer cures.

Drying Process

• Fast drying - approximately 45 minutes.
• Not affected by water when cured.

Cleanup 

• Application tools should be thoroughly cleaned with water and stored in an airtight container.  

Compliance and Certifications

• Based on the criteria of GEV (Association for Emission-controlled Laying Materials), classified as EMICODE EC1 PLUS: very low in emissions 
• Meets Indoor Air Emissions criteria of: California Section 01350; CHPS; Indoor Advantage Gold; FloorScore 
• Product meets the indoor air quality requirements of the RFCI 
• LEED credits under 4.1 
• Meets criteria of Californian South Coast Air Quality Management District, rule 1168 
• Meets criteria of: Bay Area Air Quality Management District