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Colorful Durability - PLT4 Ink
CHARACTERISTICS: PLT4 ink is a two-component series ink that is dust dry in about 20 minutes. This ink has a high gloss with very good opacity, it is trouble free and easy to work with. The ink has excellent mechanical and chemical resistance. PLT4 inks contain certain aggressive solvents and care should be taken with certain drying coatings as these could be "drawn up. PLT4 inks are not suitable for constant outdoor applications.
 
APPLICATIONS: Particularly suited for printing on cellulose acetate and thermosetting materials. Especially glass reinforced polyesters, epoxide-reinforced parts, pheno- and amoniplasts, polycarbonates, acetic resins (post-treated) and polypropylene and polyethylene (pretreated). Good results on glass, metal and painted surfaces (both epoxy and powder coated).
 
RESISTANCE: PLT4 has an excellence resistance to many organic solvents, chemical products and diluted acids.
 
FLASH POINT: Above 48 degrees C.
 
PREPARATION: As a two-component ink series, PLT4 should be mixed with hardener and thinner before use. Mix in a ratio of 4 parts ink to 1 part hardener(PLH). It is recommended that the mixed ink be allowed to rest for 10 minutes before printing. Thin and mix well the ink and hardener mixture with PLTA Thinner in a portion of 20-40% max. In warm climates and in the presence of fine details or screened images the use of PLTD Retarder in a small percentage is recommended.
 
WARNING: The life of the mixed ink is 8-10 hours after which the mechanical-chemical resistance and adhesion decrease. This is also dependent on room temperature and ratio of solvent.
 
WARNING: An excessive dilution causes a loss of coverage, smudges and incomplete ink detachment from the pad. A poor dilution may cause problems withdrawing ink from the cliché obtaining a repetitive print quality and avoiding the "dripping" of the same ink with lower print quality.
 
DRYING AND HARDENING: Generally the following drying times are applicable:
  • Hand drying at 68 degrees F: Approx. 20 minutes
  • Curing at 68 degrees F: Approx. 2 -3 minutes
  • Hand drying at 175 degrees F: Approx. 2 -4 minutes
  • Curing at 175 degrees F: Approx. 8 - 10 minutes
Items can be packed right after drying, however, curing may take up to 12 hours at room temperature. Chemical resistance tests should not be made for at least 72 hours. At that point PLT4 inks are alkai-proof and solvent-resistant. The final hardening of the ink is obtained after 5-6 days.
 
RANGE OF COLORS: PLT4 is available in 30 standard colors as well as 10 fluorescent shades. Europa scale is available in the Transparent colors. PLT4 has a high light fastness equivalent to 7-8 rating on the DIN 16525. PLT4 TP Transparent paste can be added to adjust standard colors to semi-gloss shades. For opaque colors, PLT4 inks are mixed 4 parts color to 1 part hardener, PLT4H. For transparent colors where PLT4 TP has been added use 3 parts ink to 1 part hardener. PLT4 inks are adjusted for printing with PLTA Thinner, PLTB Fast Thinner, and PLTD Retarder for printing fine detail.
 
HALF TONE: PLT4 inks are available in transparent colors PLT4 #180 Yellow.
 
PRINTING: PLT4 #181 Magenta, and #182 Cyan.
 
STORAGE: PLT4 has a shelf life of about 2 years. Storage containers should be sealed and placed in a cool and dry place. PLT4H Hardener should not be stored for long periods. The cans should be closed immediately after use, otherwise the hardener will take on moisture and become thick and useless.
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