Phosphoric acid as metal pretreatment
(→Reasons for using phosphoric acid) |
(→Ospho) |
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#Once Ospho has dried, there is no longer any acid on the surface to react with paint. | #Once Ospho has dried, there is no longer any acid on the surface to react with paint. | ||
− | #Ospho is totally neutralized by reaction with both the rust particles and the steel underneath | + | #Ospho is totally neutralized by reaction with both the rust particles and the steel underneath. |
− | #Because Ospho is water-based, the water can hide in nooks and crannies, causing adhesion failure of primer | + | #Because Ospho is water-based, the water can hide in nooks and crannies, causing adhesion failure of primer |
− | * | + | |
+ | ====Application tips==== | ||
+ | *A quick, light water rinse with a damp towel or a wax and grease remover will remove any dust-like reaction particles. | ||
+ | *Always make sure metal is dry before using ospho or priming. | ||
+ | *Sand or scuff before priming then use a wax and grease remover to clean. | ||
==Naval jelly== | ==Naval jelly== |