CHEMICAL STRUCTURE
DISSOLUTION
ASSOCIATION
ADVANTAGES
• Low viscosity and easy handling.
• Stable viscosity at wide P H range.
• Stable viscosity in long term store.
• Stable from Microbes & Enzymes.
• Any rheology of the paint is possible.
• Cost saving
HISOL D
Alkali Swellable Associative Thickener
Classification of HISOL D
CONVENTIONAL THICKENER
VOLUME RESTRICTION FLOCCULATION
Spatter
• Paints using conventional thickenersHEC). Volume
restriction flocculation : Shear thinning effect :
spatter.
• Paints using associative thickeners :
Lower spatter when roll application.
• Estimate of the roll spatter.
• Spatter test : Roll 7x2 inch, 1 inch nap, 2ft/sec, 12g of
paint, 1x2 ft wallboard.
Spatter collection : 9x12
in. Black paper. One feet below the vertical wallboard.
Spatter test
Spatter test of Interior paint
Estimate of the Spatter
• Roughly : High shear viscosity (shear rate :
10,000/sec).
• More exactly : Extensional Viscosity
Extentional Viscosity
Measurement
• Spinning
apparatus
(Measure the
Extensional
Viscosity)
RHEOLOGY OF THE WATER BASE PAINTS
PAINT FLOW
• Adjust flow balance
Better one coat coverage.
Sagging balance.
• Estimation
Low shear viscosity : Graph
Sag-meter, Leveling gauge
Zhan cup viscosity.
PICTURE(1)
PICTURE 2
Selection Guide
Paint Formulation
• HS-formula