Soflay^TM  wenziwe kabusha i-polyurethane foam. I-PU foam carpet underlay inhle kakhulu ekuvaleni nasekunciphiseni umsindo futhi ikhululekile futhi ihlala isikhathi eside. Lokhu kwenza kube yinto ethandwayo yokudwetshwa kukakhaphethi. Ukufakwa ngaphansi kukaPu nakho kusindayo, ngakho-ke kulula ukuthwala nokulingana.

Uhla lwe-Pu foam underlay ludume ngokunethezeka. Yakhishwa okokuqala ngo-2010, ibanga elingaphansi kukakhaphethi selikhule laba uphawu lomthengi oludume kakhulu eChina. Uhla olubhekwa kakhulu lweSoflay luyatholakala ku-foam ye-PU ne-polyurethane yezinhlobo ezahlukahlukene zokwakheka phansi ikakhulukazi kumahhotela ezinkanyezi nendawo yokuhlala kanokusho, ikakhulukazi i-10mm pu underlay ne-12mm pu foan underay. Kuyindlela ejwayelekile kakhulu yephedi esetshenziswa ngaphansi kukakhaphethi ezindaweni zokuhlala, futhi futhi iluhlobo oluvame kakhulu lukakhaphethi wokugwedla naphansi kokhaphethi osetshenziswa kuzicelo zokuhlala.