Feature●[???????? ?????? ?????????? ??????????????????] More than 4 hours of fire resistance without using any backfilling material.●[???????? ???? ??????????]STANDARD CAULKING GUN, a Putty Knife or Trowel can be used to apply our fire block caulk.●[?????????? ?????????? ??????????????]Akfix AC607 is a single component water-based fire-rated acrylic sealant ideal for sealing joints and seams such as concrete, stone, and cement and can be applied.●[???????????????? ?????? ??????????????????] This high temperature sealer offers outstanding flexibility and a dyeability for insulation in wood, steel, and PVC, as well as in other areas where fire resistance is required.●[??????-?????? ??????????????????????] In vertical or overhanging applications, will not sag or run for heat barrier insulation. Non-slump.Description