ASTM F3311-19

5.1 Any individual performing a mat bond evaluation should either be a qualified installer or a trained and experienced evaluator of resilient flooring and adhesive bond strength.

5.2 This practice should not be considered mandatory, except when required or specified by the end user, general contractor and architect, flooring contractor, adhesive manufacturer(s), underlayment manufacturer(s) or flooring manufacturer(s).

5.3 The number of mat bond evaluation(s) should be selected that is appropriate for the project and be representative of each type of substrate, including trenches, grade, type of flooring, and ambient conditions. The number may also be determined by the responsible party or specified by the end user, general contractor and architect, flooring contractor, adhesive manufacturer(s), underlayment manufacturer(s) or flooring manufacturer(s).

5.4 All mat bond evaluation(s) conducted shall have the results recorded within report, including photographs (see A1.11).

5.5 There are many factors that may influence the outcome of mat bond evaluation(s). Therefore, it is required to follow each manufacturer(s) installation/application instructions for every product used including open, curing, drying time, and the length of time required prior to evaluation(s)s.

5.6 Each step of the process must be conducted only at a time when the subfloor and ambient conditions comply with the requirements defined by all of the relevant manufacturer(s) written installation instructions or Practices F710, F1482, F2419, F2471, F2678, F2873, F3010, or combinations thereof.

1.1 This practice is designed to provide a short-term qualitative evaluation of the effectiveness and compatibility of the composite layers for flexible and fully adhered resilient flooring installation(s). Aspects of the resilient flooring assembly to be evaluated may include concrete surface profile (CSP), surface preparation, a topical moisture mitigation system, underlayment product(s), primer(s), application and the installation of the resilient flooring material itself. Aspects such as surface profile, surface cleanliness, surface porosity, the application method(s), and the open, curing, and drying times of each layer of the flooring system can be assessed using this practice prior to the actual full-scale installation taking place.

1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.