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Polyurethane Dispersion – SM-348

SM 348 is an anionic dispersion of an Aliphatic Urethane Polymer in Water/Ketone.


 

Product Datasheet

 

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SM-348 is a polyurethane dispersion with shear stability and pigment compatibility that cures at room temperature giving very highly flexible crack-free films.
This allows SM-348to be used to formulate highly flexible coating systems, especially for coating of Plastics. Such system exhibits very good adhesive properties.
The property of High Flexibility along with Polyurethane’s inherent properties of abrasion, impact and chemical resistance is of an advantage in coating for concrete and masonry substrates.

TYPICAL PROPERTIES

Appearance : Translucent Liquid
pH : 7.5 to 8.5
Solids wt in % : 30 ± 2%
Solvent Content : wt% Water : Methyl Ethyl Ketone :: 85 : 15
Viscosity @ 30°C, Ford Cup B4 : 30 ± 10
Co- Solvent : Methyl Ethyl Ketone (MEK)
Weight per Litre – Kg. : 0.98
Acid Value : 21 – 22

FORM OF DELIVERY

30 ± 2% IN Water / MEK
Neutralizing Agent: Tri-Ethyl Amine (TEA)

APPLICATIONS

SM-348 has fair to good resistance to many solvents and chemicals; especially those used in common cleaning agents and detergents. This property coupled with abrasion and impact resistant properties of SM-348 allows it to be used as the sole binder or in combination with other compatible binders in the formulation of several coatings for concrete and masonry surfaces, "Anti-Bacterial Hygiene Coatings" being one of its speciality applications. Adhesion's properties of SM-348 to different substrates can be further improved by the addition of cross-linking resins.

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