Natrosol Performax™ hydroxyethylcellulose

Natrosol Performax hydroxyethylcellulose (HEC) is a breakthrough paint-thickening technology. It comprises a range of hydroxyethylcellulose thickeners that delivers unprecedented process flexibility and quality control to paint manufacturers.

The patented technology triggers rapid and complete dispersion in any water-based medium, even under low shear conditions. This allows manufacturers to add HEC in dry form at any point of the manufacturing process, eliminating extra process steps such as the preparation of pre-slurries or dissolutions of HEC, saving operational costs. The end result is a faster, more efficient, less costly production process.

In addition, Natrosol Performax thickeners enhance paint quality and

preserve critical performance characteristics, such as efficient thickening, stability, color compatibility and sag resistance.

Ashland's Natrosol thickeners have been the leading HEC thickeners for waterborne architectural coatings for more than 50 years. The line includes the original Natrosol HEC, for multiple uses; Natrosol B HEC, for enzyme-resistant architectural coatings; Natrosol Plus hydrophobically modified hydroxyethylcellulose (HMHEC), offering outstanding spatter resistance and improved high-shear viscosity, and Natrosol FPS™ fluidized polymer suspensions, for customers needing solvent-free liquid versions.

Availability in North and South America is scheduled for 2014.

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Applications
Description
Benefits
Waterborne Architectural Coatings

Delivers unprecedented process flexibility and quality control. Triggers rapid and complete dispersion in any water-based medium, even under low shear conditions.

  • Can be added in dry form at any point in the manufacturing process
  • Eliminates extra process steps
  • Results in faster, more efficient, less costly production process
  • Increased formulation latitude due to freed-up water
  • Energy- and cost-saving
  • Improved plant output

Document LibraryInformation available to download for this product.

Product Literature (publicly available)
Additional Product Literature
Safety Data Sheets

Technical InformationLook here for technical information about this product.

Different grades of Natrosol Performax HEC, allowing optimal 
formulation of a wide range of paints.

HEC grade currently applied
Viscosity of 1 wt% solution in water (mPa.s.)
Natrosol Performax HEC
Hydroxyethylcellulose – Regular grades
1,500 - 2,500 1,325
2,600 - 6,500 1,425
Modified hydroxyethylcellulose
250 - 500 2,125
9,000 - 16,000 2,580

.
Performance of Natrosol Performax 1325 HEC in a styrene acrylic, 83 PVC
paint formulation vs. a paint based on regular Natrosol 250HBR HEC.

Color Yellow pigment
HEC grade Natrosol 250 HBR Natrosol Performax 1325
Application properties    

Roller application

 Control  Equal to control

Spatter resistance

5 5

Brush application

Dry film properties    

Abrasive scrub resistance (cycles)

703 690

Water resistance

Stain resistance

Gloss pencil, lipstick, crayon, pen, highlighter, mustard, marker, coffee


Recommended dry addition points.

Binder type/PVC Low (~ 21) Medium (~ 50) High (> 70)
Vinyl acrylic Any point Any point Any point
Vinyl acetate ethylene Any point Any point Any point
All acrylic Low surfactant grades:
Prior to the binder
Low surfactant grades:
Prior to the binder
Any point
Styrene acrylic Low surfactant grades:
Prior to the binder
Low surfactant grades:
Prior to the binder
Any point

 

Mixing conditions
Sufficient to ensure rapid wetting and entrainment of the powder.

pH and temperature at the time of addition
Temperature ≤ 30 °C, pH 8.5 to 9.0
Temperature 30 to 40 °C, pH 8.0 to 8.5

 

Paint formulation 
Add as much water prior to powder addition as possible. A neutralizing agent can be added after addition of the powder to accelerate dissolution if needed.

Slurry prepared on the basis of Natrosol Performax HEC
Preparation of a slurry is possible. A slurry will show strongly delayed swelling/gelling and allows extended processing time.

 

 

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Market InformationWant to know more about where our products are used?

Markets
Application
Product Types or Functions
Paint and Coatings
Waterborne Architectural Coatings
Rheology Modifier