Solid cast polymer (SCP) blocks are impervious to water, insects, decay, etc. SCP blocks molecularly bond to the embedment concrete. They require no internal steel reinforcing and can be produced in a low profile, assisting in clearance matters. Typical application mounts a fastener to the block and then installs the track in a common top-down manner. When using SCP blocks, the track doesn’t require disassembly to address voids under the DF plates. It can also be installed insitu.