This happens because the = plastic shrinks a bit when it gets warm, kind of like shrink wrap. Very = similar plastic edging, T shaped and designed to press into a saw kerf, is = available at stores that serve cabinet makers and other serious woodworkers (not a = regular home center or lumber yard). Is is usually available in several colors.

----- Original Message ----- =
> This is probably a not-often-asked-for item, but the Westfalia gray
> = plastic (rubber?) moldings on many of my cabinets appear to have = shrunk
> in size, in that they no longer extend over the length of the = corner,
> joint, or door aperture as they originally did/were supposed to. = Thus,
> my cabinet trim has an odd, ill-fitting appearance. The molding on = my
> A/C housing is even rippled as if temperature changes caused it to warp
> in place.