13+ Ultra Spec Exterior. It can be applied to masonry and plaster surfaces with ph levels as high as 13. May be applied at temperatures down to.

Ultra spec® masonry interior/exterior 100% acrylic sealer is designed to penetrate and seal the surface of new or previously painted masonry surfaces providing the. Benjamin moore® ultra spec® exterior high build masonry primer is designed to penetrate and seal the surface of new or previously. It can be applied to masonry and plaster surfaces with ph levels as high as 13.








