Masonry Prewash

High-alkaline facade washing product in gel form

Masonry Prewash
SKU: 262 Categories: , Tags: ,

Fields of application

Masonry Prewash is used as a pre-washing product to dissolve extremely heavy coal, carbon and sulphate coatings on absorbent stone surfaces such as brick, masonry, unpolished marble, terracotta, sandstone, slate and granite. NB! The product should not be used on aluminium, wood, metal or painted surfaces.


– Highly effective and long-lasting
– Gel
– Does not corrode glass

Application instructions

Cover surfaces that are not to be cleaned.
Pre-moisten the surface being treated with water.
Apply the product with a brush, roller or paint sprayer intended for high-alkaline products.
Allow the product to work for 30 minutes – 2 hours depending on the degree of soiling and the outside temperature.
Use a brush to ensure that stains and soils are dissolved.
Then wash off the surface thoroughly from the bottom up using a hot water pressure washer and adjust the pressure to the facade/ surface. After rinsing off, apply the product Restoration Cleaner as soon as possible (see the product sheet and follow instructions).


The product is used in concentrated form. Consumption approx. 0.3 – 1.0 litre/m2.


416005 – 5L
416025 – 25L

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