High-elasticity sealants and adhesives can accommodate greater joint movement before failure than more rigid products. This is often described through movement capability or modulus, with low-modulus sealants generally requiring less stress to extend.
Select movement capability from the product data and the anticipated joint movement rather than from this grouping alone. Joint width, depth, backing material and adhesion all affect performance.
Selection note: Confirm substrate compatibility, certification, movement capacity and application limits in the product's current technical data sheet before use.