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Latex adhesive
Colloïdal aqueous dispersion adhesive used in binding various substrates together. For example: paper to paper and polyethylene to paper. Also used in joint cements, sealants, caulks, and mastics.

Laminate
To unite layers of materials with an adhesive.

Lap Shear
Shear stress acting on an overlapping joint.

Linear Shrinkage
The shrinkage encountered in an adhesive in one direction.

Lubricant
Agent used to aid in the reduction of friction between two parts.