Txawm hais tias muaj ntau txoj hauv kev los tsim silicone-rubber keypads, feem ntau muaj cov qauv zoo sib xws uas muaj cov khoom siv roj hmab silicone nyob ib ncig ntawm lub tshuab hluav taws xob hauv nruab nrab. Hauv qab ntawm cov khoom siv roj hmab silicone yog cov khoom siv hluav taws xob, xws li carbon lossis kub. Hauv qab no cov khoom siv hluav taws xob yog lub hnab ntim cua lossis roj inert, ua raws li kev sib cuag. Yog li, thaum koj nias rau ntawm qhov hloov pauv, cov khoom siv roj hmab silicone deforms, yog li ua rau cov khoom siv hluav taws xob ua rau kev sib cuag ncaj qha nrog kev sib cuag.

Silicone-rubber keypads kuj siv cov compression molding zog ntawm cov khoom muag thiab daim txhuam cev zoo li no los tsim cov lus tawm tswv yim. Thaum koj nias rau ntawm tus yuam sij thiab tso koj tus ntiv tes, tus yuam sij yuav "pop" rov qab. Cov nyhuv no tsim lub teeb pom kev zoo, yog li qhia tus neeg siv tias nws cov lus txib tau sau npe kom raug.