General Description

The 4466 ink series is a UV cure ink for application by MARKEM 530 & 534 printers and similar pad printing systems for printing on materials used in the manufacture of electronic components including low stress and conventional molding compounds.

Cure Property: UV cure

Thinner: ZY

Cleaner: 320

Remover: 500

Accessory Chemicals:
The addition of thinner may be required to maintain a viscosity appropriate for the application method. The viscosity range for printing this ink is dependent upon the ink's solvents, machine speed, plate etch depth, plate etch line widths, temperature, humidity, substrate, and transfer pad. The cleaner is recommended for removing ink from the printing equipment. NOTE: Use Q thinner in place of ZY when using the Model 590 to help minimize background haze.

Drying / Curing: This ink will remain "wet" until cured by exposure to high intensity UV light. Curing requires 3 seconds of exposure to a lamp radiating a minimum of 1200 total watts in the 250 to 350 nanometer range of the UV spectrum. MARKEM recommends microwave activated mercury vapor lamps because a constant power output is maintained throughout the lamp's life. The ink film thickness should be carefully controlled to ensure that the UV radiation can penetrate and cure the entire film. The prints should travel parallel to the UV lamp and be at the lamp's focal point. Overcuring may yellow the prints.

Technical Data: • With any MARKEM ink the surface to be printed must be properly cleaned prior to marking.
• This is an improved UV cure for marking low stress molding compounds and resisting solder fluxing/dipping.
• Recommendations for machine set-up are application specific and include: Ultra 1 or Quicklase gravure plates; 20 to 60 cycles/minute; 50 durometer pads.
• Flame treatment of low stress parts is recommended prior to marking for optimum adhesion.
• Cured prints of inks in this series have shown good resistance to the following conditions after application in accordance with MARKEM's recommended procedures:
> solvents, including those specified in MIL-STD-883 Method 2015 and MIL-STD-202 Method 215 (Revision current at the time of testing).
> soaking in water and gasoline as described in Federal Specification TT-I-1795A.
> thermal shock as described in MIL-M-13231C.

Shelf Life: The shelf life for this ink series is six months from the date of shipment or twelve months from the date of manufacture, whichever is less.

Optimum storage condition is at 5-10°C in the original unopened container. Allow ink to warm gradually to room temperature before use.

Important Notes

• The materials used in formulating this product may present health or safety hazards as defined by the OSHA Hazard Communications Standard. Always consult the Material Safety Data Sheet for specific hazard information before using this product.
• No warranty for suitability of chemical products for specific applications is expressed or implied. The performance (transfer, adhesion and permanance) of any ink is directly related to the cleanliness of the surface being printed. The specifications for these chemical products are subject to change without notification or obligation.
• Contact Sales Support, or your local MARKEM representative, for assistance with colors, related inks for other application methods, or any other application questions.

Technical information is subject to change without notice.

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