BASF MasterProtect H 107 is a clear, water-based, silane/siloxane sealer for protecting a wide variety of vertical surfaces. It provides a cost-effective solution for protecting substrates from water and the elements. H 107 water repellancy extends the life of a building and exhibits breathability in which allows interior moisture to escape without damage to the sealer itself. BASF H 107 is transparent, doesn't stain and does not alter the appearance of the targeted surface. It is simple to apply, cost efficient and provides durability. H 107 can be applied to vertical, interior, exterior and above grade surfaces. Common substrates include brick, concrete, stone and stucco.