BS EN 828 specifies a method for the determination of the surface free energy of a solid surface by measuring the contact angle of a liquid wetting the solid surface. It allows the prediction of the ability of a particular adhesive to wet a particular adherend. It can be used to characterize surfaces intended for pre-treatment, coating, or bonding.
NOTE 1 In order to determine the surface free energy, the method of measuring the static contact angle is used in combination with a statistical interpretation.
NOTE 2 The measurement results are influenced by mechanical surface roughness and chemical homogeneity.
BS EN 828 on Adhesives is useful for:
Contact angle is the angle to the baseline, formed by a tangent to the drop contour going through one of the triple points.
BS EN 828 provides methods and procedures for determining wettability by measuring contact angle and surface free energy of solid surfaces. The test method outlined in BS EN 828 helps in increasing the life of adhesives at different climatic conditions.
BS EN 828 provides you with apparatus, sampling, transport, storage, and preparation of test joints, pre-treatment of test pieces, test procedure, and much more.
Using BS EN 828 you can get help in determining the contact angle and surface free energy and can manufacture superior quality adhesives.
EN 828:2013