Two new developments were added to SigmaDur 520 (SigmaDur HB Finish) to form the SigmaDur range: 

• SigmaDur 550, which gives a glossy finish with unlimited recoatability and ensures long term aesthetics
  
  
• SigmaDur 1800, which is an excellent choice when resistance to splash of mineral and vegetable oils, paraffins, aliphatic petroleum products and mild chemicals is required