​BAYFERROX® powder pigments

In general, asphalt dyeing is facilitated by powder pigments.

The most frequently used colours are:

• BAYFERROX® 130 and 230 (A) red – that can be used in both black and transparent bitumen
  
• BAYFERROX® 920 yellow – exclusively for transparent bitumen
  
• COLORTHERM® Green GN – exclusively in transparent bitumen
  

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Various advantages and disadvantages are linked with the use of powder pigments.​

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Advantages:

• Suitable for all types of asphalt
  
• No adjustment of either blending time and/or temperature required
  
• Low price​
  

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Disadvantages

• Develops quite a lot of dust
  
• Poor flowability as compared with C types and polymer-encapsulated pigments​
  

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​Packaging options: Sacks, big bags and tank trucks.