Product Description
766 Limestone & Masonry Prewash is a strong, alkaline-based cleaning compound formulated to dissolve and assist in the removal of heavy carbon encrustations from masonry. Designed for use in conjunction with Sure Klean Restoration Cleaner, Limestone & Masonry Afterwash or Limestone Restorer, this prewash penetrates deeply to break down the dirtiest stains without damaging the surface or glass.
Key Benefits
- Heavy-Duty Cleaning: Removes stubborn carbon crust and black staining from masonry.
- Safe for Masonry: Will not damage limestone or other sensitive substrates.
- Non-Damaging: Will not etch or harm window glass.
- Ease of Use: Can be applied by brush or roller with minimal labor.
Best For
- Limestone
- Terra cotta
- Sandstone
- Unpolished masonry
- Horizontal surfaces and window sills
Product Properties
| Property | Specification |
|---|---|
| Form | Colorless gel liquid; soap odor |
| VOC Content | Non-applicable |
| pH | 13.6 @ 1:5 dilution |
| Coverage Rate | 75–200 sq ft/gal. See Product Data Sheet for specific variations per substrate. |
| Freeze Point | 28° F (–2° C) |
| Flash Point | Non-applicable |
| Total Solids | Non-applicable |
| Wt/Gal | 10.6 lbs |
| Available Sizes | 5-gal |
| Shelf Life | 2 years in tightly sealed, unopened container |
