2, PUR zafi narkewa manne rufe inji rufe layi a -40 ℃ zuwa 150 ℃, da kuma ba a bude manne a cikin kwantena wuce equator. Ta hanyar hannu zuwa tsakiyar bangarorin daidai nesa bude da karya, sa profile motsi ya kasance daidai line. Guje wa profile jigilar karfi daidai, samar da swings.

3、 PUR(Polyurethane Reactive), Sinanci da aka sani da cikakken zafi karfafa amsa polyurethane zafi narkewa glue. Babban abu ne karshen isocyanate polyurethane pre-polymer. PUR ta adhesiveness da tauri (elasticity) iya daidaitawa, kuma yana da kyakkyawan adhesion ƙarfi, zafi juriya, sinadarai lalata juriya da kuma tsufa juriya. A cikin 'yan shekarun nan ya zama daya daga cikin mahimman iri na adhesive masana'antu. Yanzu ana amfani da shi sosai a fannonin tattalin arzikin kasa kamar marufi, sarrafa katako, motoci, masana'antu, lantarki, sararin samaniya.
PUR adhesive ne urethane base (-NHCOO-) ko isocyanate base (-NCO) a cikin tsarin kwayoyin halitta wanda ke ƙunshe da polarity da aikin sinadarai, tare da kayan da ke ƙunshe da hydrogen mai aiki kamar itace, fata, masana'antu, takarda, yumbu da kayan porous da filastik, karfe, gilashi, roba da sauran kayan sarrafawa.
daEVA zafi narkewa manne, ruwa-based narkewa irin manne idan aka kwatanta da, PUR yana da wadannan amfani:
Babu mai narkewaA ruwa iri. Ba kamar ma'aikata mai narkewa ba, ana buƙatar tsarin bushewa, babu matsalolin gurɓataccen muhalli da guba saboda kasancewar mai narkewa don biyan buƙatun kare muhalli. Hanyar haɗuwa mai sauki, za a iya amfani da hanyoyin haɗuwa kamar rufi na madaidaicin ko spraying.
2 aiki mai kyau. A cikin ɗan gajeren lokaci, za a iya daidaita su biyu da adhesive, don haka za a iya canza sassan haɗuwa cikin tsarin sarrafawa na ƙasa da sauri don haɓaka inganci.
zafi juriya, sanyi juriya, ruwa tururi juriya, sinadarai juriya da kuma solvent juriya kyakkyawan aiki. Idan aka kwatanta da asalin mai narkewa mai zafi, saboda tsarin haɗi na mai narkewa mai zafi yana haɓaka ƙwarewar da aka lissafa da ƙarfin haɗi sosai.