Why should ASTM A242 type 1 weathering plate need oxidation

First of all, ASTM A242 type 1 weathering plate forms a stable, uniform color, rust red oxide film, not a simple erase. The corrosion treatment process of ASTM A242 type 1 weathering plate is usually completed within 3 hours in an outdoor temperature of 25 ℃.

Then In general, ASTM A242 type 1 weathering plate naturally rusts for 1-2 years. It is only 1-2 months of fine yellow rust, no feeling, simple rust!

Next regardless of the local geographical location, local climate, location (facing Southeast or northwest), the composition of rust red oxide film of ASTM A242 type 1 weathering plate is uniform and stable!

Last the treatment process does not corrode and does not affect the continuous composition of rust layer on the surface of ASTM A242 type 1 weathering plate, which is environmentally friendly, non-toxic and harmless.