ARC ROM Diamonds S.R.L.
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HL 50

Solvent based, "natural look" water repellent for cladding

General properties

HL 50 protects internal/external terracotta, clay or brick cladding from moisture and general stains such as from water, carbon monoxide, airborne dirt, mould, mildew and weather stains in general. The water/dirt repellent action is due to its technologically advanced formulation, protecting deep inside the terracotta pores from 4 mm to 20 mm, varies with surface characteristics for a periods up to six years. HL 50 does not change the natural aspect of the terracotta or to the grout/cement joints and it will not create any type of film or plastic effect, while allowing vapour to escape. UV resistant.

Directions for use

Apply by brush, roller or spray, HL 50 uniformly on a clean and dry surface. Proceed to apply one uniform abundant coat to the terracotta surface; in the case of very absorbent surfaces, we highly suggest a second application directly over the previously applied coating. We suggest to allow 12/24 hours, curing time before resuming normal use of the treated surface.

Where to apply

The product is applied on internal/external clay, brick general terracotta masonry materials and terracotta cladding


Boxes of 12 bottles of 1 lt. / 4 containers of 5 lt.


Indicative coverage applying two coats of the product on surfaces of medium absorption is 2-4 m² / lt. (25-45 sq.ft. / lt.)