ST-PM(NS)-C scoretech_admin August 18, 2020 Patch-up Mortar : Shrinkage compensated thick bed patching up mortar material specially designed for leveling up step joints at concrete walls and ceilings as well as skim coat applications. Catalogue Download ← F.S.S.T.L 255J/O Luen Hing St.,Wo Fung St. and Luen Shing St., Fan Ling,N.T. ST-PM(NS)-F →