Ama-polyurethane foaming agents angumkhiqizo-wokuvundisa okuphambanayo kobuchwepheshe be-aerosol kanye nobuchwepheshe begwebu le-polyurethane. Akhiqizwa ngazo zombili izinhlobo zeshubhu nesibhamu, abonisa isipontshi{2}}njengesimo. Ama-foaming agents asetshenziswa ekukhiqizeni amapulasitiki e-foam microporous ngokuvamile ahlukaniswa ngezinhlobo ezimbili: ngokomzimba namakhemikhali. Lokhu kuhlukaniswa kusekelwe ekutheni ukukhiqizwa kwegesi kuyinqubo ebonakalayo (okungukuthi, ukuvuthwa kwegesi noma i-sublimation) noma inqubo yamakhemikhali (okungukuthi, ukucekelwa phansi kwezakhiwo zamakhemikhali noma okunye ukusabela kwamakhemikhali).
I-polyurethane foaming agent, eyaziwa nangokuthi-ingxenye ye-polyurethane foam sealant eyodwa, ngokuvamile ibizwa ngokuthi i-foaming agent, i-adhesive adhesive, noma i-PU sealant. Igama lesiNgisi elithi PU FOAM liwumkhiqizo-wokuvundisa okuphambanayo kobuchwepheshe be-aerosol kanye nobuchwepheshe begwebu le-polyurethane. Kungumkhiqizo okhethekile we-polyurethane oqukethe i-polyurethane prepolymer, i-ejenti eyenza amagwebu, i-catalyst, nezinye izakhi ethini le-aerosol elicindezelwe. Lapho impahla ifuthwa ku-aerosol can, i-foamy polyurethane material ikhula ngokushesha futhi isabelane nomswakama emoyeni noma i-substrate ehlangana nayo yenze igwebu. Inohlu olubanzi lwezinhlelo zokusebenza. Inezinzuzo{7}}zokukhihliza amagwebu ngaphambili, ukunwetshwa okuphezulu kanye nokushwabana okuphansi. Igwebu linamandla amahle nokunamathela okuphezulu. Ngemuva kokuphulukiswa, igwebu linemiphumela eminingi efana nokugcwalisa izikhala, ukubopha, ukubekwa uphawu, ukufakwa kokushisa nokufakwa komsindo. Yimpahla yokwakha enobungani bemvelo futhi eyonga amandla{11}okulula ukuyisebenzisa. Ingasetshenziselwa ukuvala nokuxhuma ukuvuza, ukugcwalisa izikhala nokulungisa nokubopha, ukufakwa kokushisa nokufakwa komsindo. Ifaneleka ngokukhethekile ukuvala nokuxhuma ukuvuza nokuvimbela amanzi phakathi kwensimbi yepulasitiki noma iminyango ye-aluminium alloy namafasitela nezindonga.