The slope is a surface that lies at an angle to the horizontal. If the driving force at the slope is bigger than the resisting force. it can inflict a landslide. Gabions are one of the slope reinforcements structures that can be used to prevent landslides. https://www.ngetikin.com/quick-offer-1-Gallon-Universal-Primer-Pro-Deep-Penetrating-Primer-big-deal/