Jim wants to paint the floor in his manufacturing work shop. There is impact from dropped tools, but no forklift or heavy equipment use.
A moisture test is MANDATORY. Perform a moisture test (ASTM3359)
- Use 4 mil visqueen (2 feet x 2 feet)
- Duct tape all four sides to floor.
- Wait 24 hours and look for condensation under the plastic.
- If wet, do not paint because of hydrostatic pressure.
- Complete a moisture test (above).
- Remove dirt and grease by scrubbing with hot water and a strong degreaser or detergent. Rinse thoroughly. The wet surface, when clean, should be one continuous sheet of water with no beading in any areas.
Rough up smooth floor to achieve the look of 100 grit sandpaper using one of the following methods: Acid etch if there is a drain (May require multiple applications), Blast-trac (Do not overdue profile or extra coats may be required), Grind and Go.
- All dust must be removed by vacuum or mop. Let dry thoroughly.
- Clean cracks out to remove loose concrete, obtain and apply a paintable concrete patch.
- Fill cracks with an epoxy crack filler designed to be painted.
- Check walls for moisture before coating. Determine and correct the source of moisture before painting.