'50 Ford Coupe Trunk Hinge Pads

[50fordcoupeman]

Last year I replaced the trunk hinge pads with new ones from Dennis Carpenter. The new ones already look worse than the old ones-cracked and appear to have shrunken. I also replaced the seal that goes on the lip of the body under the trunk lid. It has also shrunk-almost 6" and is no longer usable. Car is always stored inside. What gives here? China junk or????