Patent ID: 8580894

Claim:
A two part, self curing, low viscosity acrylic densifying and coating composition, comprising: a) a first component composition of (i) from about 25 parts per hundred weight (phw) to about 75 phw of at least one low viscosity cross linkable acrylate functional molecule with mono, di, or multifunctional acrylic vinyl ether or methacrylate functionality having a molecular weight of less than about 500; (ii) from about 16 phw to about 33 phw of a hydrophobic crosslinker; (iii) from about 1 phw to about 8 phw of at least one polymerizing catalyst or metal containing catalyst; and (iv) from about 1 phw of an adhesion coupling agent, and b) a second component composition of (i) an effective oxygenating acrylic cross linking agent; and (ii) from about 20 phw of a curing agent which contains polymerizable allylic, acrylic or methacrylic functional groups; wherein the composition has an initial viscosity sufficient to allow the composition to penetrate into the pores of a porous substrate and wherein said first component has a viscosity in the range of from about 50 cp to about 1000 cp.