RHEOVIS PU 1256

Rheovis PU 1256 (formerly DSX 3256) is a non-ionic mid-shear solvent-free rheology additive for aqueous coatings. 
Rheovis PU 1256 is an associative polyurethane thickener that gives aqueous systems a pseudoplastic behavior. 
The properties of Rheovis PU 1256 are independent of the pH. 
Rheovis PU 1256 is more effective in anionic emulsion types, pure acrylics and styrene-acrylic systems than in protective colloid emulsions such as VeoVa.

This product is recommended for use in house paints, synthetic plasters, emulsion paints, adhesives, fillers and anti-corrosive paints. 
Rheovis PU 1256 can be formulated with other thickeners such as cellulose derivatives and acrylate thickener.
Rheovis PU 1256 is a non-ionic mid-shear solvent-free rheology additive for aqueous coatings.
Rheovis PU 1256 is an associative polyurethane thickener that gives aqueous systems a pseudoplastic behavior. 
The properties of Rheovis PU 1256 are independent of the pH. 

Applications of Rheovis PU 1256:
Rheovis PU 1256 is an associative polyurethane thickener designed to modify the rheology in aqueous polymer emulsions. 
Rheovis PU 1256 is more effective in anionic emulsion types, pure acrylics and styrene-acrylic systems than in protective colloid emulsions.

Rheovis PU 1256 is recommended for use in house paints, synthetic plasters, emulsion paints, adhesives, fillers and anti-corrosive paints. 
Rheovis PU 1256 can be formulated with other thickeners such as cellulose derivatives and acrylate thickener. 

Rheovis PU 1256 used in aqueous paint formulations allows to achieve these advantages:
-improved flow
-improved gloss
-increased hiding power
-reduced splattering when paint is applied by roller
-increased resistance to washing and scrubbing
-long open time

Rheovis PU 1256 is film-forming, has a good pigment-binding capacity and is outstandingly resistant to UV radiation. 

Recommended concentrations of Rheovis PU 1256:
The recommended dosage of Rheovis PU 1256 is 1 – 3% on total formulation, depending on pigmentation, dispersion type, amount of binder and co-solvents used.
Rheovis PU 1256 may be added at any stage of paint manufacture.
However, Rheovis PU 1256 is recommended to incorporate it while stirring – without any dilution – directly to the pigment paste before the grinding stage.
Rheovis PU 1256 can also be added at the final stage of the paint manufacture.
Rheovis PU 1256 should then be prediluted 1:1 – 1:5 in propylene glycol or butyl glycol to achieve perfect incorporation into the system. 

Properties of Rheovis PU 1256:
-polyurethane-based associative thickener
-solvent-free, non-ionic, mid-shear rheology modifier for aqueous coatings
-gives aqueous systems a pseudoplastic behavior
-thickening is pH independent
-improved flow and gloss, increased hiding power
-wash and scrub resistances
-outstanding spatter resistance during roller application

Chemical nature of Rheovis PU 1256:
Rheovis PU 1256 is a solution of a polyurethane in water/liquefier.

Properties of Rheovis PU 1256:
physical form: clear to slightly yellowish turbid liquid
shelf life: When stored under the usual appropriate storage conditions, the product can be stored for 1 year.

Typical properties of Rheovis PU 1256:
density at 20 °C (68 °F): ~ 1.03 g/cm3
solids: ~ 35%
Brookfield viscosity at 23 °C (73 °F): ~ 23,000 mPa. s 

RHEOVIS additives encompass a broad portfolio of synthetic rheology modifiers designed for aqueous systems, including non-ionic associative (HEUR / HMPE), anionic associative (HASE) and non-associative anionic (ASE) technologies. 
Each product class has its own properties and applications to enable formulators to achieve their desired rheology profile with all types of resins. 
RHEOVIS PU and PE series of associative thickeners stand out as a class of groundbreaking additives based primarily on hydrophobically modified polyether and polyurethane derivatives. 
RHEOVIS HS and ASE are pH activated polyacrylate technology for ease of handling and in-can stability.

Key features & benefits of Rheovis PU 1256:
-Broad range of rheology profiles
-Highly efficient across many resin types
-Improved wash and scrub resistance
-Excellent leveling
-Reduced spattering
-Not susceptible to microbial attack

Applications of Rheovis PU 1256:
-ACE
-Automotive coatings
-Architectural coatings
-Building materials
-Construction coatings
-Elastomeric roof coatings
-Furniture and wood coatings
-Industrial coatings
-Marine coatings
-Nonwovens
-Overprint varnish (OPV)
-Printing and packaging

Storage of Rheovis PU 1256:
Rheovis PU 1256 should be stored in tightly closed containers. 
The packed product is not damaged by low temperatures or by frost. 
If stored at low temperatures precipitation or gelatinization of the product is possible. 
This process is reversible. 
Please heat Rheovis PU 1256 to room temperature and stir well before use. 
 

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