Kuenzaniswa ne polyurethane foam,foamed silicone rabha inogona kunyatso kuzadzisa zvinodiwa zve EN45545-2 maererano nekunonoka kwemurazvo.. Kuwanda kwefuro rayo kuri pakati pe 0.08 ne 0.15g/cm ³, uye hupenyu hwayo hwesevhisi hunogona kusvika ka2 kusvika ku4 nguva yefuro repolyurethane.
Uye zvakare, yakanyanya kukwirira kune polyurethane furo maererano nekunyaradza, furo density uye kushamwaridzana kwezvakatipoteredza. Naizvozvo, zvinotarisirwa kutsiva zvechinyakare polyurethane furo mumhepo, njanji uye yakakwirira-inopera maindasitiri emotokari.