NS - Closed Cell Neoprene Sponge is placed horizontally beneath relieving angle, or in the vertical expansion joint to act as a control joint.
- Also prevents clogging of expansion joint with mortar
- Conforms to ASTM D 1056 Grade 2A1
- Length per roll is 50 ft.
- Available in 3/8" thickness (others also available).
- Standard width is 3".