What conditions must the substrate meet?
The substrate must be:
• Flat and level within 2 mm over 1 m.
• Clean, dry and free of dust, grease, paint, wax, oils, solvents, or moisture.
• Grouts larger than 5 mm by 4 mm must be filled.
The substrate must be:
• Flat and level within 2 mm over 1 m.
• Clean, dry and free of dust, grease, paint, wax, oils, solvents, or moisture.
• Grouts larger than 5 mm by 4 mm must be filled.