Frequently asked questions
The answers to the questions listed below may clarify your doubts about LANXESS’ inorganic pigments.
In case you cannot find an answer to your doubt, please contact our Customer Service:
0800-13 28 22
How is Bayferrox® produced?
It is produced through a high-technology process that consists in the oxidation of selected iron parts.
What are the Bayferrox® colors available?
Bayferrox® can be found in three basic colors: yellow, red and black, which combined compose different shades of brown and orange.
Which are the main advantages of using an inorganic pigment such as Bayferrox® iron oxide?
Bayferrox® has high dyeing power, excellent resistance to alkalinity, bad weather and UV light action, which results in non-fading colors.
In which segments can Bayferrox® be used?
Civil Construction, Paints and Coatings, Plastics, Papers, Glasses, Rubbers, Ceramics, Cosmetics and Wooden Chips. However, due to the fact that is has several physical-chemical properties, it is possible to extend its use to technical fields that are not necessarily related to color, such as, for example, the fireworks and brake lining industries.
What are the main applications of inorganic pigments such as Bayferrox® iron oxide in the Civil Construction sector?
It is used to dye concrete artifacts such as interlocked floors, hydraulic floor tiles, roof tiles and blocks, pre-molded panels, urban furniture (square benches, concrete garbage cans). It also colors the concrete molded "in loco", coating mortar, settling and sealing, asphalt and paint whitewash.
What is the proper sequence for adding the pigment to concrete artifacts?
The pigment has to be mixed preferably with dry aggregates (sand and/or stone). Only then one should add the cement and finally water.
What is efflorescence?
Efflorescence is a phenomenon that occurs because the water dissolves the free whitewash that is part of the hydrated cement and carries it to the concrete surface. When this water that carried the whitewash evaporates, a white soluble salts powder deposit remains.
Can the efflorescence problem be prevented?
No. Above all it is important to know that efflorescence is a natural phenomenon intrinsic to materials produced on cement bases.
Is it possible to correct the efflorescence problem?
Yes, it is. The salts originated from efflorescence are naturally washed away by rain. However, in case there is need to remove efflorescence within a shorter period of time, it is possible to clean them with a soft-bristle high-pressure washer or with an efflorescence remover found on the market.
Does the pigment cause efflorescence?
No. The pigment just indicates this problem that occurs regardless of its use.
Where can I purchase Bayferrox®?
LANXESS serves directly orders of more than R$ 6.000,00 for the State of São Paulo, and R$ 4.000,00 for other States, via SAC Bayferrox® 0800 13 28 22.
For orders below these values, the purchase can be made via one of our distributors:
Brenntag: 11 5545-2145;
Coremal: 11 4615-8100;
Fermaflex: 11 4645-1033;
Quimar: 11 4056-9500;
Rheotix: 11 6685-6055.
