Hordaphos® MDB
Multi-functional phosphate ester additive with a broad application spectrum

Hordaphos® MDB

Multi-functional phosphate ester additive with a broad application spectrum

Edition Date :
July 16, 2020
Hordaphos MDB is a multi-functional additive which can be used in various applications, especially in printing inks, paints and coatings. It is a clear, colourless to yellowish liquid with an ester-like odour. 

For more details see our Video about Hordaphos.

  • Multi-funcional additive
  • Excellent softening ability
  • Anti-static effect
  • Adhesion promotor
For regulatory details such as the classification and labelling as dangerous substances or goods please refer to our corresponding Material Safety Data Sheet.
Hazard class Hazard category H-phrases
Skin corrosion Category 1B Causes severe skin burns and eye damage
Category of danger/Category Hazard symbol R-phrases
Corrosive Causes burns
Characteristics   Unit   Target value   DS¹)   TD²)  Test Method 
Phosphorus %(w/w)   16.7 - 17.7  

Photometry after oxidizing dissolution; (11/17) or wavelength dispersive X-ray fluorescence spectrometry; (11/23)  
Density g/cm³   1.12 - 1.16  

at 20 °C, flexural resonator; (11/65)  
Dynamic Viscosity mPa*s   approx. 180  

pH Value   approx. 2  

at 20 °C (10 g/l in H2O/isopropanol mixture 1:3)  
Acid Number mgKOH/g   450 - 490  

Titration using alkali, 2nd end point at pH 9-10; (11/11)  
¹) The product is constantly monitored to ensure that it adheres to the specified values. Test methods: Clariant method numbers 11/xx in brackets.
²) The technical data are used solely to describe the product and are not subject to constant monitoring  
Hordaphos MDB is used as a pickling and anchoring agent for the application of paints and as a hardener for acid-curing paint systems. In printing inks Hordaphos MDB acts as flexibiliser. Furthermore, it is used as antistaticum and dispersing agent. 
Delivery form

Hordaphos MDB is supplied in 60 kg net tight head drums (480 kg pallets), 200 kg net tight head drums (800 kg net pallets), also in 1,000 kg net semi-bulk containers or road tankers. 

Hordaphos MDB must be stored in its tightly closed original container in a cool frost-free place away from direct sunlight. 

Minimum shelf life is 12 months from the date of shipping when stored according to the said conditions. 

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Alexis Dudley
Alexis Dudley
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This information corresponds to the present state of our knowledge and is intended as a general description of our products and their possible applications. Clariant makes no warranties, express or implied, as to the information’s accuracy, adequacy, sufficiency or freedom from defect and assumes no liability in connection with any use of this information. Any user of this product is responsible for determining the suitability of Clariant’s products for its particular application.<br />
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* Nothing included in this information waives any of Clariant’s General Terms and Conditions of Sale, which control unless it agrees otherwise in writing. Any existing intellectual/industrial property rights must be observed. Due to possible changes in our products and applicable national and international regulations and laws, the status of our products could change. Material Safety Data Sheets providing safety precautions, that should be observed when handling or storing Clariant products, are available upon request and are provided in compliance with applicable law. You should obtain and review the applicable Material Safety Data Sheet information before handling any of these products. For additional information, please contact Clariant.<br />
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