Rough Surface Condition
Rough surface condition or appearance is a uniformly rough coating with a textured appearance over the entire product. The cause for rough surface condition could be the steel chemistry or the preparation of the surface by mechanical cleaning, such as blasting before the part reaches the galvanizer. Rough surface condition, as seen in the images below, can actually have a positive effect on corrosion performance because a thicker zinc coating is produced. One of the few situations where rough coating is cause for rejection is if it occurs on handrails.