Ziribe kanthu kaya gawo lapansi ndi pulasitiki, pepala kapena nsalu, mphamvu yomatira ya tepi imachokera ku zomatira pamwamba pa gawo lapansi.Zakuthupi za zomatira zimatsimikizira mwachindunji mphamvu yomatira ya tepi.Zoonadi, pali mitundu yambiri ya matepi, yomwe imagawanika kukhala matepi okhudzidwa ndi kupanikizika, matepi otsekedwa ndi madzi, matepi osamva kutentha, ndi zina zotero.Palibe chithandizo chapadera kapena yambitsani chomwe chimafunika, ndipo chikhoza kutheka ndi kukakamiza kwina.Zomatira zotsatira.Zomatira zolimbana ndi kukakamiza (zomwe zimatchedwanso kudzimatira) pa tepi ndizomwe timakambirana.

Pressure tcheru zomatira ndi mtundu wa zinthu polima ndi kukhuthala kwakukulu kwambiri ndi elasticity ena, monga acrylate polima, mphira, silikoni mphira, etc. The adhesiveness wa tepi ndi okhwima thupi ndondomeko, ogaŵikana masitepe awiri kulowerera ndi adhesion, ndipo viscoelasticity ya ma polima.Zimagwira ntchito yofunika kwambiri apa: Choyamba, zomatira za viscous zimakhala ndi ntchito inayake yamadzimadzi, ndipo mphamvu ya pamwamba ya molekyulu yomatira imakhala yochepa kwambiri, yomwe imapangitsa kuti zomatirazo zilowetse mosavuta pamwamba pa chinthucho, ndipo elasticity imapanga Pamene ikanikizidwa, mamolekyu omatira angasonkhane pamodzi m’malo mwa kufinyidwa pambali;ndiye, ndondomeko yomatira ndi zotsatira za mgwirizano ndi zomatira.

Pali matepi ena, kumamatira kumawonjezeka ndi nthawi.Izi ndichifukwa choti zomatira zimafunikira nthawi yayitali kuti zinyowetse bwino pamwamba pa chinthucho ndi "kulowa" m'mabowo ndi ma grooves.Kuonjezera apo, anthu ena amaganiza kuti tepiyo ndi tepi yongokutidwa ndi guluu.Mawu awa ndi olakwika kwathunthu, chifukwa guluu ali kwathunthu mu mawonekedwe a madzi, kuti akwaniritse wettability, ndi kugwirizana kwake ndi kumamatira ayenera kudikira mpaka Iwo angakhoze kuwonetseredwa pambuyo kuyanika mpweya.Komanso, kulumikizana ndi guluu ndi njira yosasinthika.Akang'ambika, sangathe kumangidwanso.Pa nthawi yonse yolumikizana ndi tepi, zomatirazo zimasunga viscoelasticity ndipo zimasinthidwa pang'ono.ndondomeko.