Chii chinonzi Polyurea Coating uye Polyurethane Coatings

Polyurea Coating uye Polyurethane Coatings

Polyurea kupfeka

Polyurea coating inonyanya kuita maviri-chikamu sisitimu yakavakirwa paAmine yakamiswa prepolymer yakabatanidzwa neIsocyanate inoumba urea linkages. Iko kuyambuka pakati pe reactive mapolymers kunoitika nekukasira kumhanya pane ambient tembiricha. Kazhinji kuita uku hakudi chero catalyst. Sezvo Pot-hupenyu hwekupfeka kwakadaro huri mukati memasekondi; yakakosha mhando yePlural Component spray pfuti inodiwa kuita application.

Iwo machira anogona kuvaka anosvika mazana mashanu kusvika ku500 mamicrons ehukobvu mune imwechete appllication. Nekuda kwehukobvu hwakadaro hunopa yakanakisa makemikari uye abrasion kuramba. Nekudaro, iyo inodiwa pfuma inonyanya kuenderana nepamusoro kugadzirira kwechinhu chichaputirwa. Zvinokurudzirwa kuputika kuputika kwejecha kana grit blast pamusoro senge nzira yakajairika [eg, Sa 1000½, SSPC-SP2/NACE No.10] kusvika pedyo nesimbi chena. Pasinei nehupamhi hwepamusoro zvakadaro huchiri kupa kushanduka kwakanakisisa; kureba [kutenderedza 2%] uye kuderera kwekupinda. Kushandiswa kwakajairika kunosanganisira pane kongiri kunyanya mumugero wemvura umo mvura yakakwira inofambiswa nehupamhi hwekukurumidza uye kudzvanywa, matangi ekuisa, indasitiri pasi uye akasiyana simbi chimiro.

Polyurethane Kuchengeta

Polyurethane coating inopa firimu rakatetepa, yakakwira gloss kupera ine yakasarudzika mamiriro ekunze ekuita maitiro. Uku kupfekedza kunoshandiswa mune angangoita ese misika yemaindasitiri kupa yakapfava yakagadzikana kupera iyo ine yakakwirira kuramba kukororo, abrasion, uye kuratidzwa kwemakemikari. Polyurethanes anowanzo shandiswa kupfekedza topcoat yakakwirira kuvaka epoxy uye inorganic zinc.