K-STAY® Rheology Modifiers

K-STAY rheology modifiers are available for both solvent-borne and waterborne coatings, specifically:

K-STAY 501 - Based on unique sulfonate technology for non-aqueous systems.

K-STAY 700 Series - Hydrophobically Modified Ethoxylated Urethane Associative Thickeners for waterborne systems

K-STAY 501 is designed to prevent sag and settling without affecting gloss in non-aqueous pigmented systems. It is effective in both ambient and high temperature systems. Supplied as a pourable fluid, it can be used in high gloss applications with little or no effect on the final gloss of the system.

Advantages of K-STAY 501:

• Improves sag resistance
• Reduces pigment settling
• No effect on gloss
• Pourable - easy to handle

The K-STAY 700 Series has been designed to offer formulators of waterborne systems a range of products to obtain a specific rheological profile and performance attributes. Advantages include:

• Excellent Sag Control
• Zero VOC's
• Ease of incorporation
• Pseudoplastic profile
• Liquid and 100% solid free flowing powder products
• Good sprayability

PRODUCT	Composition	% Active	Attributes/Uses	Technical Data Sheet
For Solvent-borne Systems
K-STAY 501	Calcium Sulfonate Light Aromatic Naphtha	50	For solvent-borne systems, including polyester/acrylic/ melamine, alkyd/melamine, 2K urethanes and epoxies
Associative Thickeners For Waterborne Systems
K-STAY 720	HEUR* Thickener Water	50	Intermediate shear thinning, used for increasing low and medium shear rate viscosity.
K-STAY 730	HEUR Thickener Water	50	High shear thinning, used to increase low andmedium shear viscosity. Well suited for high film build, spray applied applications.
K-STAY 731	HEUR Thickener Water	50	Provides most thickening at low shear rates, but does not influence high shear rate viscosity. High film build, spray applications.
K-STAY 740	HEUR Thickener	100	Supplied as solid free flowing powder. Shear thinning, provides increase to low and medium shear rate viscosities. Easy to handle.
* HEUR - Hydrophobically Modified Ethoxylated Urethane Thickener