yakavharwa sero pfapfaidzo furo
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SWD250 Spray Rigid Polyurethane Foam Kuvaka madziro ekupisa kupisa zvinhu
SWD250 Spray Rigid Polyurethane Foam yakagadzirwa neSWD Urethane Co. USA muma1970s.Yakashandiswa zvakanyanya pakuvaka madziro ekupisa kupisa muUS uye kupihwa chitupa seEnergy Star neUSEPA.SWD250 polyurethane foam ndeye dense structural microporous foam material ine yakaderera kunyudzwa mwero, yakanaka permeability kuramba, pamusoro pe95% yeakavharika maseru emukati.Inoshandiswa neiyo yakananga yekupfapfaidza tekinoroji, hapana seams pakati pemafuro akaturikidzana ayo akazara asingapindiki layer anoumbwa pane substrate.Inogadzira chidziviriro chinodzivirira kunyura kwemvura uye inogadzirisa zvakakwana madziro echivako matambudziko ekudonha kwemvura uye kupisa kwekudzivirira nyaya.
