SKAPS flow mat is a fabric with double sided chopped strand mat with needle punched polypropylene non-woven as a core in the middle is a sandwich construction.
The purpose of a core in a composite laminate is to increase the laminate's thickness by effectively 'thickening' it with a low-density core material. This can provide a dramatic increase in thickness for very little additional weight.
SKAPS has a new kind of flow mat with Bi-Directional layer on top and chopped strand mat on bottom and polypropylene core in the middle. The bidirectional top layer provides enormous strength to the laminate.
C = chopped strand mat
P = polypropylene core
B = Bidirectional layer