Length - 07:09 Find Concrete Moisture Testing Kits Testing concrete for moisture vapor transmission ensures proper bonding of overlays and toppings. Test before applying any 100% solid epoxies or high-solid polyurethanes. One inexpensive moisture test is the Tape-Down Test (ASTM approved). Tape a 16" x 16" piece of 6-millimeter Visqueen down to the concrete surface with duct tape. Leave the test down for a minimum of 16 hours. If any condensation is present, you have a moisture problem. The second test is the Calcium Chloride Test (ASTM approved). This is a kit that measures the amount of moisture calcium chloride absorbs from the concrete over a 16-72 hours. The calcium chloride is mailed in for results. This kit also includes a pH test. pH is important in preventing delamination of the floor. Concrete has a natural pH of 8 to 10. The concrete should be around a pH of 7 before applying your coating.
View All Concrete Tool Videos Find a Concrete Contractor 24 Services in 221 Metros -- U.S. and Canada © 1999-2012 ConcreteNetwork.com None of this site may be reproduced without written permission |
||||||||||||
