Hardness yog ib qho tseem ceeb qhia txog qhov zoo ntawm silicone. Feem ntau hais lus, cov roj hmab cov ntsiab lus siab dua, qhov qis dua qhov hardness. Lub hardness ntawm silicone feem ntau yog raws li tus qauv Shore hardness, thiab cov tester kuj siv cov Shore hardness tester. Lub hardness txawv ntawm 0 mus rau 100 degrees, nyob ntawm seb qhov kev ua haujlwm ntawm cov khoom siv. Cov khoom siv silicone muaj qhov sib txawv hardnesses raws li cov txheej txheem, thiab cov txheej txheem muaj ob hom kua-kua txheej txheem.

 

Cov txheej txheem ua kua silicone tuaj yeem siv los ua "qib" silicone roj hmab cov khoom, xws li 0 txog 20 degrees, txawm tias koj tau txais ntawm tes, nws yog nplaum heev. Cov khoom siv silicone no feem ntau tsis tshua muaj, thiab tsim ib txheej ntawm cov kua silicone pwm yog tshwj xeeb tshaj yog kim. Rau ob peb, feem ntau nws raug nqi kaum txhiab daus las. Cov txheej txheem ua kua feem ntau yog ua tiav ntawm ib ncig ntawm 10 txog 20 degrees. Rau qee cov khoom siv roj hmab silicone ua los ntawm cov kua siv tshuab, cov khoom siv silicone ua nrog cov tshuab ua kua tsis yooj yim tshem nws tus kheej thiab tuaj yeem ua rau muaj teeb meem nrog cov npoo tsis zoo vim cov khoom siv. Yog li ntawd, cov txheej txheem ua kua yog tsim rau cov khoom siv silicone tsawg, uas tsis tas yuav tsum nruj heev rau kev sib dhos. Cov khoom ua kua silicone raug pom zoo: silicone pacifiers

 

2. Cov txheej txheem hauv lub xeev, tam sim no, qhov tsawg kawg nkaus softness ntawm cov txheej txheem silicone yog li 30 degrees, thiab qhov siab tshaj plaws yog 80 degrees, txawm hais tias nws tseem tuaj yeem ncav cuag qib siab dua, tab sis qhov tsis ua hauj lwm tus nqi siab dhau lawm, thiab cov khoom yog heev nkig thiab tsis yooj yim rau disassemble los ntawm lawv tus kheej. Yog li, qhov zoo tshaj plaws softness ntawm cov txheej txheem khoom yog nruab nrab ntawm 30 degrees thiab 70 degrees. Cov khoom muag tsis tuaj yeem ua tsis tau, tab sis qhov kev tshem tawm ntawm tus kheej yog qhov zoo dua, thiab cov khoom muaj qhov zoo nkauj, tsis muaj burr.