GREENTECH MOISTURE SEALER PMS-11 is a high-performance polymer dispersion specially formulated as moisture barrier layer for various substrates. It blocks moisture transfer and promotes bonding between finishing coat and the substrates. It can be applied on various substrates such as concrete, cement-based plaster, lightweight panel and etc. It is especially suitable for GREENTECH Gypsum Blocks and other gypsum boards or plaster boards to receive cement-based materials, such as tile adhesives, render or skim coats.