BoltHold asphalt anchors MUST use anchoring cement or epoxy ("grout") to facilitate bonding to the asphalt. The grout must meet certain properties else the results will be unpredictable.
Our EPX2 is a cement based grout available either in 12 oz resealable bags, or in a 10 lb. tub. Our EPX3 is a resin ("epoxy") grout adhesive available in cartridge form, compatible with single-piston caulk guns. While the cement should not be applied at temperatures below 50F, the epoxy can be applied at temperatures as low as 14F. The EPX3 is more expensive but easier to use. We recommend the use of the EPX3 for a stronger and less-error-prone installation.