The key component of both products is the addition of our proprietary additive, SurfaceBond. While coal appears very hard and solid, it is actually quite porous. These pores tend to wick in or absorb moisture. Freeze conditioning agents can only be effective when they coat coal particles–any material that is absorbed into the internal surfaces is essentially ineffective. SurfaceBond fights absorption and allows our FreeFlow body feed products to offer improved results at reduced application rates.