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Coatings Ingredients
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Coatings Ingredients
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ALPEX® CK 450/PAST

Technical Datasheet | Supplied by allnex
ALPEX® CK 450/PAST by allnex is a synthetic resin based on cyclized rubber. It acts as a phenolic crosslinker. It is readily compatible with mineral oils used in letterpress inks. Because of the non-polar structure, it reduces emulsification of offset inks with the dampening agent. It improves ink transfer and provides prints with good scratch resistance immediately after printing. It also improves gloss, enhances ink transfer properties and reduces flocculation of pigments in gravure printing. ALPEX® CK 450/PAST is used in screen printing inks for various purposes including the production of printed circuits. In paints, it is normally used in conjunction with plasticizers, drying oils and alkyd resins. It is suitable for chemically resistant-, anti-corrosion-, zinc-rich paints and interior coatings for drinking-water tanks. The shelf life is 365 days.
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ALPEX® CK 450/PAST
Technical Datasheet | Supplied by allnex
REQUEST A SAMPLE ORIGINAL DATASHEET CONTACT SUPPLIER
Product Type
Crosslinking / Coupling / Curing Agents
Chemical Composition
Cyclized rubber
Physical Form
Pellets
Product Status
COMMERCIAL
Geographical Availability
Africa, Asia / Pacific, Central and Eastern Europe, Middle East and Central Asia, North America, South and Central America, Western Europe
Applications/ Recommended for
  • Coatings
  • Inks
  • Inks > Gravure
  • Inks > Letterpress / Newspaper
  • Inks > Lithographic and Offset Inks
  • Inks > Screen inks

ALPEX® CK 450/PAST Properties

Property

Value & Unit
Test Condition
Test Method
Viscosity
350 - 700 mPa-s
(Dynamic. At 23°C. 50 % in toluene. Ubbelohde Viscometer)
DIN 53177
Melting Point
127 - 145 °C
(Capillary)
DIN 53181
Iodine Color
60
(50 % in toluene)
DIN 6162
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