ASTM D6958

This test method was originally designed as a means of quantitatively measuring the level of adhesion of the wood-wood interface caused by a wood coatings system applied to the substrate. The tensile test is useful in measuring bonding strength of coatings, such as gymnasium coatings, in which the wood strip flooring primarily expands or contracts in response to changes across the cross-sectional width of the strip floor.

This test method was further designed as a means of measuring the side-bonding potential of wood coating systems.

1. Scope

1.1 These test methods describe an evaluation procedure for the determination of undesirable side-bonding of coatings for wood flooring. They provide two mechanical properties tests for the quantitative determination of the cohesive strength of wood coatings (tensile and lap shear); they also provide a wood floor simulation test for the qualitative determination of side-bonding potential of wood coatings.

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 and health practices and determine the applicability of regulatory limitations prior to use.

2. Referenced Documents

ASTM Standards
D2370 Test Method for Tensile Properties of Organic Coatings
D4444 Test Method for Laboratory Standardization and Calibration of Hand-Held Moisture Meters
D9 Terminology Relating to Wood and Wood-Based Products
British Standards
B.S.1204 British Standard Test for Synthetic Resin Adhesives
Maple Flooring Manufacturers Association (MFMA)
GuideSpecificationforSleeperandSleeperwithPlywoodFloorSystems
Wood Flooring Manufacturers Association (NOFMA)
CracksinHardwoodFloors
National Wood Flooring Association (NWFA)
HardwoodFloorsTroubleShootingManual

Index Terms

cohesive strength; elongation; gapping; panelization; shear strength; side-bonding; spread rate; tensile strength; Shear testing--wood products; Tensile properties/testing--wood products; Coatings--flooring materials/applications; Cohesive strength; Elongation; Flooring/floor covering systems (wood); Maple block tensile strength test; Maple strip lap shear test; Mechanical properties; Panelization; Quantitative analysis/measurement; Side-bonding; Spread test; ICS Number Code 79.080 (Semi-manufactures of timber)

Citing ASTM Standards

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