HP Nextgel - The Best Polysand in the Business!
The following test is routinely performed in our laboratory as part of the quality control assessment of polymeric sands.
Water is sprayed on the surface of the sand. Once the sand is saturated with water, the wet sand is removed from the petri dish and a ball is formed by hand.
The first important observation with the competitor’s product is the appearance of white suds. These suds are likely caused by some ingredients added to control the amount of dust and to obtain a faster wetting. This may lead to overwatering, thereby increasing the drying time. In addition, the presence of suds means that air will be trapped in the joint, resulting in a weaker structure and a potential for significant migration of additives to the surface of the joint. With NextGel’s unique technology, these added ingredients are not required since the product contains no fine particles, responsible for excess dust and haze.
The second series of observations relate to the cohesiveness of the sand mass.
After a few minutes of manipulation, the expectation is that polymeric sands should reach a minimum level of cohesiveness to insure acceptable structural integrity. This property also closely correlates to the early rain resistance of the sand.
As seen here, HP NextGel shows great elasticity, a sign of cohesion and therefore excellent structural strength. However, the competitor’s product is crumbling, literally falling apart and has very little structural strength. It simply fails the test. The resulting joints will therefore have minimal integrity and limited resistance to compression. This has been validated in additional laboratory testing where NextGel’s compression strength is at least twice as high as the competition’s.