ACRYSOL™ DR-300

• Good water resistance: Exterior durability
• Low-viscosity liquid: Easy to handle and incorporate during manufacturing
• Good flow/sag balance: Thicker films; good appearance
• Good paint consistency and stability: Thick, creamy "in-can" appearance with stable viscosity
• Synthetic: Resistant to microbial attack
• Excellent thickening efficiency, lower formulated cost

• ACRYSOL DR-300 thickener provides application and "feel" properties very similar to those of medium and high-molecular-weight cellulosic thickeners with better leveling, sag resistance, and resistance to roller spattering in most formulations.
• A comparison of a high-molecular-weight cellulosic thickener and ACRYSOL

DR-300 in a 48% PVC/30% VS all-acrylic exterior formulation based on PRIMAL™ SF-016 ER emulsion illustrates the similarity in the key rheology properties they provide

• Apart from the achieved benefit of lower formulated cost, Figure 1 and 2 show the superior resistance to roller spattering and the enhanced water resistance of ACRYSOL DR-300. In general, traditional synthetic thickeners based on acrylate increase the water sensitivity and therefore decrease the scrub resistance.
• The new technology generation provides superior scrub resistance compared to traditional synthetic thickeners.

Figure 2: Water resistance of an all-acrylic exterior formulation based on PRIMAL SF-016 ER

• When substituting any synthetic associative thickener for a cellulosic agent, the proper choice of dispersant, co-solvent, and surfactant is critical to achieving maximum performance properties and cost savings. While pure polyacid dispersants like OROTAN™ N-4045 are showing excellent compatibility with the DR-Technology, the usage of a hydrophobic copolymer dispersant is recommended with ACRYSOL DR-300 because of the superior exterior durability.
• Therefore OROTAN 731-A-ER, at a level of 0.80% solids on titanium dioxide/extender solids, has consistently promoted efficiency and general application performance. For optimum water resistance properties, the most suitable dispersant is OROTAN 165.