About Prestonett Interior/Exterior Waterproof Masonry Filler
Permeable to water vapour and is suitable for filling holes and cracks up to 15mm in one application. Suitable for filling fine grain concrete, concrete and cellular concrete, brick and concrete block, plaster and plasterboard and can be used to over-coat light weight wall coverings and old paintwork
Also suitable for surface levelling and can also be used to repair reinforced concrete.
It is quick and easy to mix and is ideal for shaping and moulding.
Waterproof at 3mm thickness. Once dry it is easy to sand to a very smooth finish and will not flash or grin through subsequent paint finishes.
Waterproof Masonry Filler can also be applied to damp surfaces.
Mix with 25% water
Apply using a filling knife, blade or trowel.
Do not try to remix the filler once it has started to set.
It can be painted once dry and there is no need to spot prime.