Solid phenolic resin ye kyenvu, entangaavu, amorphous mass substance, kubanga erimu free phenol era emmyufu, average specific gravity y’ekintu nga 1.7, etabulwa mu mwenge, tesaanuuka mu mazzi, stable ku mazzi, weak acid, weak alkali solution. Resin ekoleddwa mu phenol ne formaldehyde polycondensation, neutralization n’okunaaba mu mazzi mu mbeera ya catalyst. Olw’ebiziyiza eby’enjawulo ebirondeddwa, esobola okwawulwamu ebika bibiri: thermosetting ne thermoplastic. Phenolic resin erina asidi ennungi, ebyuma n’ebbugumu, era ekozesebwa nnyo mu yinginiya aziyiza okukulukuta, ebisiiga, ebintu ebiziyiza ennimi z’omuliro, okukola nnamuziga ezisenya n’amakolero amalala.