what about chalk
what about chalk
what about chalk
In Fontainebleau, the use of chalk (magnesium carbonate) is a critical issue. The local sandstone absorbs moisture and chalk residue, which, if handled improperly, leads to a permanent "polishing" of the handles. Once the pores of the stone are clogged, its natural friction is lost.
In Fontainebleau, the use of chalk (magnesium carbonate) is a critical issue. The local sandstone absorbs moisture and chalk residue, which, if handled improperly, leads to a permanent "polishing" of the handles. Once the pores of the stone are clogged, its natural friction is lost.
How do I brush my rock correctly?
How do I brush my rock correctly?
How do I brush my rock correctly?
Brushing the rock in areas like Fontainebleau isn't a cosmetic option, but a necessity for maintaining the rock's quality. Sandstone is delicate; improper brushing can permanently damage the surface. At the end of the session, go over everything again!
Brushing the rock in areas like Fontainebleau isn't a cosmetic option, but a necessity for maintaining the rock's quality. Sandstone is delicate; improper brushing can permanently damage the surface. At the end of the session, go over everything again!
When is the rock dry?
When is the rock dry?
When is the rock dry?
The rock is considered wet as soon as visible dark discolorations, water streaks, or standing puddles appear in the holds. Even if the surface appears dry, the sandstone remains internally saturated and unstable following damp ground conditions or prolonged rain. High humidity or fog is sufficient to form a greasy film that makes climbing impossible. The mechanical load capacity of the rock decreases by up to fifty percent when wet, leading to the breaking of holds. After heavy precipitation, a waiting period of at least twenty-four to forty-eight hours of sun and wind is necessary to ensure the structural integrity of the rock.
The rock is considered wet as soon as visible dark discolorations, water streaks, or standing puddles appear in the holds. Even if the surface appears dry, the sandstone remains internally saturated and unstable following damp ground conditions or prolonged rain. High humidity or fog is sufficient to form a greasy film that makes climbing impossible. The mechanical load capacity of the rock decreases by up to fifty percent when wet, leading to the breaking of holds. After heavy precipitation, a waiting period of at least twenty-four to forty-eight hours of sun and wind is necessary to ensure the structural integrity of the rock.