Umgangatho we-SPC yimveliso yetekhnoloji kunye nobulumko. Inika umxube wamanqanaba ahlukeneyo, ukutyabeka umphezulu, ukucoceka okuphezulu okucacileyo kwe-pvc yokunxiba, inkcazo ephezulu yefilimu eshicilelweyo, isiseko se-SPC kunye nesimumu. I-SPC imele 'iplastikhi yelitye edityanisiweyo' okanye 'ilitye lokudibanisa ilitye'. Ngokuchanekileyo, ilitye lekalika, eliyinkompo engaphiliyo. Ithatha i-50-70% yomxholo womgangatho. Zonke ezinye ziyi-PVC kunye ne-stabilizer. Ewe umlinganiso umiselwe ngumphathi wemveliso nganye eyenza umahluko omkhulu kumgangatho.