Viscosifier yog ib qho kev pab siv los ua kom nws tus kheej kheej ntawm rubber.Rubber nws tus kheej - viscosity yuav cuam tshuam txog cov khoom ntim ntawm cov roj hmab, thiab yog li cuam tshuam cov dispersion ntawm lub compound, lub zog ntawm roj hmab, qhov ua tiav ntawm cov txheej txheem extrusion thiab cov foaming vaj tse.Proper viscosity kuj yog conducive los txhim kho lub nruj ntawm lub nplaum.
Feem ntau siv cov viscosifiers hauv Suav teb yog cov octyl phenolic resin (203 pob), tert-butyl phenolic resin (204 resin) thiab tert-butyl phenolic acetylene resin (Koresin resin) .Txhibified tert-butyl phenolic resin (hy-2006) hloov khoom muag raws li 204 pob zeb, uas yuav hloov tau Koresin resin rau kev nplua thiab kev laus ua haujlwm zoo dua. Cov roj hmab viscosifier cob hy-209 yog ib qho chaw tsim tawm tshwj xeeb rau EPDM.