Granite is an open-pored natural stone and better protected against moisture penetration with a sealant. However, not all types of granite need a seal. A simple test reveals the need. Sealing is an easy and quick job.
On-demand, outdoor and cleaning
Whether your granite needs a seal or not, you can determine with the help of a white cotton cloth. Place the generously dipped cloth on the surface of the granite and wait five to ten minutes. If the cloth has discolored, even slightly, a seal is necessary. If a granite is sealed that does not require sealing, the surface appearance may be compromised.
In outdoor areas, sealing should always be carried out with appropriate granite. The tough and very hard natural stone has its only weak point with its porosity. In addition to the rapid pollution of moss and faster pollution, extreme frost can cause bursting spots. The infiltrated water freezes and the ice develops implosion forces.
In order to achieve optimum protection for your granite during the sealing process, you must clean the surface very thoroughly and allow it to dry out. Even spores of mosses or lichens as well as slight moisture in the granite are otherwise "protected" by the seal. In addition to accelerating weathering, sealed moisture is a breeding ground for germs and bacteria. Especially kitchen worktops and table tops, this effect must be excluded.
Seal the granite yourself
- Acid-free detergent without limescale ingredients
- Sealing agent
- White cotton cloth
- Microfibre cleaning cloth or mop
- Hard-bristle brush
- Spray bottle
Spray the granite evenly with a soft special cleaner and brush or scrub Thoroughly remove the surface. Rinse with clean water and repeat the process.
2. Allow to dry out
After cleaning, the granite must dry completely and dry to the depth. Protect the stone outdoors with cover foil. This should be placed floating over the granite to prevent condensation. Work outdoors only in dry weather. Avoid indoor activities that increase humidity, such as cooking or hanging wet laundry to dry.
2. Apply sealant
After a safe drying of at least 48 hours, spray the mixed or pure sealant evenly onto the granite surface according to the manufacturer. Massage the product into the granite with light circular polishing movements.
3. Allow to work
Most manufacturers indicate between 4 and 24 hours as the drying time. For safety reasons, you should use the granite surface again after twelve hours at the earliest, especially for surfaces that come into contact with food.Tips & TricksThere are durable sealants designed for one-time use. In the outdoor area, the permanent means are preferable. For example, if you seal table or countertops indoors, you should repeat the process every two to three years.