Technical term for thickness/thinness of fluids is viscosity. Viscosity is the measurement of the fluid's internal resistance to flow, this is normally designated in units of centipoise (cps). Put simply, the less viscous the fluid is, the greater its ease of movement (fluidity). There is not a chemical available for purchase to make Alumilite Resin a thinner viscosity. We do have thinner viscosity resins than the Regular Alumilite at 190 cps. Our RC3 (110 cps) and Alumilite White (90 cps, our thinnest resin) are thinner than the Regular Alumilite. The smaller the cps number the thinner the fluid, example water is a 1 cps, #30 motor oil is 250 cps, while honey is 10,000 cps.