Iron oxide red (FEPREN TP 303, Czech Republic) is used in the construction industry for painting concrete, paving tiles, roofing tiles, artificial stone, for the production of paints, primers and fillers.

The recommended percentage of colouring pigment is 2–5 % of the weight of the binder (cement) and depends on the desired colour of the product, as well as economic feasibility. An increase in the amount of pigment in concrete to more than 5 % may result in excessive content of fine fraction, higher water requirement of the concrete mixture and deterioration of the technological properties of concrete (lower strength, frost resistance, etc.).

Packaging: 25-kg paper bags