DIYtester
2024-03-12 23:05:33
- #1
Hey everyone! I am currently working on our concrete staircase with Beton Mineral from residence (Schiefergrau). I am initially satisfied with the processing. However, it looks catastrophic after the first sanding. It is completely spotted. I have attached a picture after sanding… Maybe someone can help me or has an idea how to prevent the spots. Best regards