Kampun HD100 filler board is a Cross linked Closed cell Polymer. It is widely known as compressible Expansion Joint Filler Board or micro cellular filler board and is flexible as well as has high compression-recovery, therefore suitable for application at places which require readily compressible low load. This filler board is non-tainting and therefore suitable for use in potable water retaining and water excluding structures. It is very light weight and easy to handle and install. It can withstand severe weathering conditions and shows no sign of disintegration or degradation. It is a sheet form in semi-rigid, UV resistive, high performance laminated closed cell polyethylene foam joint filler. It is suitable for use as expansion joint filler in concrete, brick, block work and isolation joints where readily compressible low load transfer joint filler is required.