Bostik Express Pointing Mortar has been specially developed to quickly repair damaged masonry joints in brick and stonework, without having to mix mortar. It can also be used to seal between stones, brick slips and around lead flashing. It is supplied ready to use and is easily applied with a cartridge gun, internally or externally. It does not require a primer on most substrates, even on slightly damp surfaces. It can be overpainted where required.