LIQUID RHEOLOGY AGENT FOR SAG CONTROL AND PIGMENT SUSPENSION
IN NON-AQUEOUS COATINGS AND RELATED SYSTEMS
SUSPENO 70is a liquid flow control agent for use in the production stage or as a stir-in post addition to the finished product. It requires no predispension or activation and will correct sagging, running, dripping and curtaining of paints, or slumping in heavy bodied compounds. SUSPENO 70 has no effect on gloss, color, dry or cure time and flexibility. The prevention of sagging is readily demonstrated by testing wet films with the Leneta Sag Liner.
ØArchitectural Paints, Wood Stains and Primers
ØIndustrial Coatings and Product Finishes
ØMaintenance and Marine Coatings
ØInks and Adhesives
ØPutty, Caulks, Sealants
ØMastic and Trowel Compounds
ØAsphaltic and Bituminous Compound
The action ofSUSPENO 70 is not dependent on pigment reactivity nor does it relate to temperature, vehicle acidity, soaps, special solvent or surfactants. Being adsorbed on particle surfaces it prevents agglomeration and settling. SUSPENO 70 does not significantly alter apparent viscosity in the mid-shearing range such as observed in the Stormer viscometer and effluent cups (Ford, Shell, Zahn). It does increase viscosity in the ultra low shear range (.05 to 1.0 reciprocal seconds). This is an important factor in industrial coatings, which, because of high solids requirements, cannot tolerate a major viscosity increase.
Slight pigment settling is generally tolerated so long as the system can be easily reconstituted. Highly undesirable caking and hard packing are avoided by the use ofSUSPENO 70.
Sag control is achieved by reason ofSUSPENO 70’s high viscosity in the ultra low shear range. Its efficiency is readily demonstrated by adding it to paint at a test level of 5-7 pound per one hundred gallons. After thorough mixing (10-12 minutes) the paint can be brushed on a horizontal surface, scribed with a blunt point (pencil eraser) and them placed in a vertical position to observe sag correction.
SUSPENO 70is effective in a wide range of pigmented vehicles; oils, varnishes, alkyds, alkyd/amino systems, esters, polyurethane’s, cellulosic and acrylic lacquers, chlorinated rubber and vinyl. The normal solvents: aliphatic, aromatic and oxygenated are generally suitable.
SUSPENO 70can be added at any stage of production using conventional dispersion equipment. For correction of off-standard batches or reworking old material in storage, the stir-in principle is adequate. Through mixing for 10-12 minutes is suggested. There are not temperature restrictions governing the use of SUSPENO 70.
SUSPENO 70is generally used in the range of 0.4% to 1.2% based on total weight. Preliminary evaluation is suggested at five-seven per 100 gallons.
Form Viscous, brownish yellow liquid
Density (gm/cm3) 1.04
Bulking Value (gallons/lbs.) 0.115
(THIS IS NOT TO BE CONSIDERED A SPECIFICATION)
Poly-Resyn, Inc., 534 Stevens Court, Dundee, IL 60118
847-428-4031 800-233-4325 Fax 847-428-0305 www.polyresyn.com
Poly-Resyn Incorporated makes no representations or warranties with respect to the accuracy of research on materials it sells. Poly-Resyn disclaims any implied warranties of merchantability or fitness for any particular purpose. The Poly-Resyn materials are solid "as is". Poly-Resyn shall not be liable for incidental or consequential damages by use of its materials. The user assumes all risk of use and handling. Poly-Resyn’s liability arising out of use of its materials shall be limited to replacement of the materials. The Poly-Resyn materials shall not be used in any way, which would infringe any patent.