Logic Sand Max® Polymeric Sand from Angelus is made with a state of the art manufacturing process. Specifically calibrated sand is mixed with polymeric binders that flows smoothly down joints for a fast and effective installation of pavers or slabs with false or wide joints. Logic Sand Max® is recommended for a variety of uses including pool decks, patios, footpath , driveways, parking spaces, steep slopes etc. Applied dry, it hardens after being activated with water. Once Logic Sand Max® sets, it becomes very firm and locks between the paver joints while still retaining flexibility and providing a long lasting, durable jointing material. It allows joints to resist erosion, weeds, and insects.