If it s a newer roof the galvanizing can definitely cause you adhesion problems.
Rust converter metal roof.
A rust converter is a chemical treatment that turns iron oxide into a more stable form such as iron tannate.
The advantage of a rust converter is the treatment is less invasive and the only surface treatment needed is a cleaning of loose rust and soiling generally with a wire brush.
The first ingredient tannic acid reacts with iron oxide rust and chemically converts it to iron tannate a dark colored stable material.
Whether these products are exposed to the elements or simply a corrosive material mro chem claims black star rust converter will perform the task at hand with ease.
Tannic acid and an organic polymer.
Link to product info on amazon first might be a good idea.
Larger surfaces are much easier to roll and brushes work well on smaller surfaces.
Hand or power tool clean the rusty metal to remove any flaky rust and unsound paint.
The rust converter will dry in 20 minutes however it takes 24 hours to cure.
Not only does it convert and kill existing rust but it seals out water to prevent future rust formation and further degrading the underlining metal.
What is rust converter.
Let the roof dry out thoroughly before applying noxyde coating.
Prime the rusted areas with noxyde and allow to cure.
The removal of rust doesn t pose any difficulty anymore all thanks to the black star rust converter from mrochem.
There are two main options for eliminating rust using a rust remover or applying a rust converter.
If it s quite old and rusty any primer for metal followed by any outdoor paint designed for metal is probably okay although a rust converter affil.
Tannins are a group of water and alcohol soluble natural products extracted from fruits trees and grasses.
Water blast clean the prepared surface to remove all remaining dust and contaminants leaving a clean dry surface.
The mrochem black star rust converter is ideal for use on metal roofs marine equipment fences bridges steel sheds and even vehicles.
Application of a second coating will ensure proper rust conversion.
Apply rust converter with a brush or a roller.
Rust converter a water based primer contains two active ingredients.
A rust converter is a synthetic polymeric formula that converts rust on metal into a water free protective black surface.
While a remover removes the rust plus part of the metal a rust converter only removes the rust leaving the metal intact and safe.