A na-eji rọba viscosity dị elu ma ọ bụ gluu gbazee na-ekpo ọkụ kpuchie teepu akwa, ọ nwere ike peeling siri ike, ike mgbakasị ahụ, nguzogide griiz, nguzogide ịka nká, nguzogide okpomọkụ, mgbochi mmiri, na mgbochi corrosion.Ọ bụ teepu nrapado dị elu nke nwere nnukwu ntachi obi.
A na-ejikarị teepu akwa akwa maka ịchichi katọn, akwa kapeeti, eriri dị arọ, nkwakọ mmiri na-adịghị, wdg. Ugbu a, a na-ejikwa ya ugboro ugboro na ụlọ ọrụ ụgbọ ala, ụlọ ọrụ akwụkwọ, na ụlọ ọrụ electromechanical.A na-eji ya na ebe ndị dị ka ụgbọ ala ụgbọ ala, chassis, kabinet, wdg, ebe ihe mgbochi mmiri dị mma.Nhazi nhazi dị mfe ịnwụ anwụ.