The most flexible filler board for expansion joints. Duraboard HD100 is a high-performance, pre-molded, crosslinked, and compressible filler for joints. It's a highly compressible filler board that guarantees minimal load transfer. " Duraboard HD100" (expansion joint filler board) is a non-bituminous, superior option to boards made of bitumen. Deesa Duraboard HD 100 is an open-cell polymer that is cross-linked, commonly referred to as compressible joint filler board. It is flexible as well as having high compression-recovery, making it suitable for application in places that require readily compressible low loads. This filler board does not stain and is therefore suitable for potable water retention and water-exclusion structures. It is free of bitumen. The most flexible filler board to be used for expansion joints. Deesa HD100' is a high-performance, cross-linked, pre-molded joint filler board that is compressible. It is a pliable filler board that ensures the transfer of loads is low. "Deesa HD100" (expansion joint filler board) is a non-bituminous and superior alternative to the bitumen board. https://www.swellablewaterbar.com/duraboard-hd100.html