How is the stone watermark produced?
Uneven pressure caused by many cases, such as non standard, the mold is not standard, pressure head of their own resonance, and so on, you can adjust the equipment and prescription adjustment from two aspects.
Under normal circumstances the resin is uniformly covered the surface of the particles, when the pressure is not uniform, the resin will gather from high to low pressure, low pressure position (paste aggregation) high resin content, curing and other plate position difference, thus forming the watermark.
Should be used when calcium polished water or other mineral components are left after the moisture evaporates, should be used in water filtration thickness when polishing or after polishing the sheet surface water with strong winds blow, or the cleaner with glass clean shaven or better effect
