7620 Stone Coating (penetrative)
Unlike our standard coating for stone 695 (which is a water based topographical coating) this coating is designed to penetrate deep into the structure of the stone. After it has become established in the stone it provides strong hydrophobic and oleophobic protection. Specifically developed for natural stone and cementitious surfaces such as sandstone, limestone, travertine, concrete, pavers and brickwork.
This coating will remain highly effective for approximately 10-20 years. (Top up coatings for areas subjected to high abrasion or repeated cleaning, can be completed in minutes) This coating can be used on floors and on work surfaces including hybrid stone. As the coating becomes enmeshed within the surface structure of the stone it also provides excellent anti-weathering characteristics which significantly impede degradation and water ingress. Testing is always recommended before large scale application. It should not be applied to wet or moist stone. Optimum performance is established after curing for 48 hours at 20°C, however, functionality is established within 2-3 hours.
Test Certifications
| Test according to | Description |
|---|---|
| DIN EN ISO 1062-3 | Water absorption (on travertin) |
| DIN EN ISO 7783 | Water vapour transmission (on travertin) |
| ASTM B117 | Water absorption (on concrete) |
| AS/NZS 4456.10 | Resistance against salt and chlorine attack (on sandstone) |
| ASTM G 154-06/2006 | Accelerated aging test on Wood |
| Test resistance to absorption of moisture | |
| Water absortion test on lime sandstone | |
| Stain protection testing on lime sandstone | |
| Application testing |
Case Study
CCM was happy to solve a problem for the town of Penzance, Cornwall / UK where a huge oil stain ruined the newly refurbished Penzance Promenade. An article in Cornwall Live highlighted the problem, noting that all attempts to clean the area had failed so far.
Stone Coatings in Comparison
| Properties | 7620 Details |
704 / 705 Details |
7641 Details |
7626 Details |
8637 Details |
7622 Details |
7624 Details |
695 Details |
|---|---|---|---|---|---|---|---|---|
| Application | Spray, brush, roller | Spray, brush, roller | Spray, brush, roller | Brush, roller, convention or airless spray | Spray, brush, roller | Spray, brush, roller | Spray, brush, roller | Spray, brush, roller |
| Application Temperature | <-10°C - 70°C | <5°C - 40°C | <15°C - 25°C | <-5°C - +60°C | <5°C - 30°C | <5°C - 30°C | 15°C - 25°C | <5°C - 50°C |
| m² per liter | 8 - 50 | 20 - 100 | 50 - 80 | 8 - 10 | 10 - 20 | 10 - 20 | 30 - 40 | 5 - 40 |
| Durability | 10 - 20 years | 5+ years | Up to 10 years | Up to 20 years | Up to 10 years | Up to three years | 2+ years | Up to 2 years |
| Curing Time | 3-6 hours at 20°C | 24 hours | 7 days at room temperature | Touch dry 3-4 hours, full cure 24 hours | 12 hours | 12 hours | 12 hours | 12 hours |
| … based | Solvent | Solvent | Solvent | Solvent | Water | Water | Water | Water |
| Available as concentrate | No | Dilutable up to 1:1 with Ethanol or 1-Methoxy-2-Propanol | No | No | No | No | No | Yes 1:9-1:14 (art. no. 697) |
| Breathable | Yes | No | No | Yes | Yes | Yes | Yes | Yes |
| Visible | Might be slightly darker | 704: Glossy 705: Matte |
Yes glossy |
Yes clearly (glossy) |
No on most surfaces |
No on most surfaces |
Matte, transparent | No on most surfaces |
| Topographical / penetrative | Penetrative, extreme abrasion-resistant | Topographical | Topographical | Topographical, very strong bonding | Topographical | Topographical | Solidifies the Surface | Topographical |
| Oil resistant | Yes | Yes | Yes | Yes | Yes | Yes | No | Yes |
| Frost resistant | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| PFOS- / PFOA-free | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| PFAS-free | No | Yes | Yes | Yes | No | No | Yes | Yes |
| Available in RAL colors | No | Yes from 1.000 liters |
No | Yes from 100 liters |
No | No | No | No |
| Dangerous goods | No | Yes | No | No | No | No | No | No |
| Application recommendation | Concrete, tiles (unglazed), roofing tiles, brick/masonry, limestone, sandstone, mineral plaster, natural stone, façade, slate | Concrete, plaster, natural stone (granite, slate, basalt, sandstone, limestone), roof tiles, clinker | Marble | Graffiti Protection for up to 50 times, for commercial locations, for aluminium siding, (fibre) glass, masonry, metal, street signs, stucco, utility boxes, vinyl siding, wood | For monuments, Statues, high value stone art works, paving-stone systems and terrace tiles | Wet room walls, concrete seating in public areas, stone foyer areas | Concrete, plaster, natural stone (granite, slate, basalt, sandstone, |
