It is recommended this test be used to determine the compatibility of resilient flooring adhesives to concrete subfloors after removal of old adhesives*, curing agents, parting compounds, dust inhibitors, oil, grease, paint, varnish and other special surface treatments or conditions. Using the flooring material and recommended adhesives, install 3’ x 3’ panels spaced approximately 50’ apart throughout the subfloor area. Select areas next to walls, columns or other light traffic areas. Tape edges of panels to prevent edge drying of adhesive. When testing where a curing agent has been used, the curing agent must be removed in some areas for bond testing.
If the panels are securely bonded after a period of 72 hours, you may conclude that the subfloor surface is sufficiently clean of foreign material for satisfactory installation of the resilient flooring.
*Some previously manufactured asphaltic “cutback” adhesives contained asbestos. For removal instructions, refer to the Resilient Floor Covering Institute’s publication https://rfci.com/recommended-work-practices/Recommended Work Practices for Removal of Resilient Floor Coverings.