Superior Stone Products Water Clear Polyester Knifegrade adhesive is used for laminating and seaming natural stone including light colored marbles such as white marble, Cured with 1%‐2% clear liquid hardener (MEKP), these adhesives have a gel time of 10‐20 minutes and are fully cured in 2‐4 hours, Proper storage in a climate controlled room prolongs shelf life, An excellent choice for indoor application