ETHYLEX® 2040 Surface Treatment Starch

•  Stable viscosities and reduced set back properties
•  Greater water retention
•  Dried films that are clear and flexible
•  Lower gelatinization temperatures
•  Good compatibility and reactivity

Clear Sizing Paper
Because of their excellent water holding and film forming properties, ETHYLEX starches are highly recommended for surface sizing papers. Availability in a wide viscosity range permits their usage at the size press or calender stack; ETHYLEX films give papers better surface strength and hold out properties than those provided by other starches commonly used. As a result, ETHYLEX starches are products of choice for surface sizing fine quality papers.
The properties of film clarity and continuity permit the use of ETHYLEX starches in transparentizing papers.
Size Press Paper Coating
EHTYLEX starches provide process advantages such as viscosity stability and improved runnability to metered size presses. These advantages are not seen in other starches. ETHYLEX starches are especially useful as co-binders in both clear and pigmented surface sizes in conjunction with synthetic resins, polyvinyl alcohol, latexes and other film formers. Hydroxyethylated starches are fully compatible with these materials, and act with them to contribute to the barrier properties that impede the migration of moisture, wax, lacquer and varnish.
Paper CoatingCertain grades of coated paper, such as label paper, require especially high print quality. ETHYLEX starches are used in these high-solids, pigment-binder systems because they possess unusually high adhesive strengths and provide good compatibility with latex. The ETHYLEX starches also contribute water holding ability, viscosity stability, and consistent rheological properties to coating mixtures. The trend to increased coating speeds necessitates the consistent, stable viscosities of ETHYLEX starches.

Paperboard Sizing and Coating
ETHYLEX starches are important in the manufacture of a large variety of paperboard products, ETHYLEX starche 2040 is used at the calender stack to control curl and to increase the hold out properties of the board for subsequent over coating.

Most of the ETHYLEX starches are available in 50 and 100 lb. multiwall paper bags and 1000 and 2000 lb. bulk bags for railcar and truck shipments. They are also available in bulk truck and railcar quantities.

Store at ambient temperature and humidity.