Rondecat Screen Inks

Description

RONDECAT is a 2-pack screen printing ink, with excellent adhesion to a wide range of the most difficult surfaces. By using the appropriate catalyst, both Gloss and Matt finishes may be achieved. The cured ink film will withstand the most severe chemical and physical conditions.

Colour Range

A wide range of standard colours are available. If you have a specific requirement for ‘special match’ colour. SISS offer a full colour matching service either to internationally recognised standards or customers own patterns

Substrates

RONDECAT inks adhere to a wide range of surfaces, including most metals, treated polythene and polypropylene, ceramics, glass, most stoved enamels and many plastics.

RONDECAT is often the solution to printing “odd ball” surfaces. SISS Technical staff will be pleased to assist in any substrate evaluation.

Stencils & Meshes

All types of stencil materials are suitable except Stenplex Amber and Solvent adhering films.
Meshes in the range of 68-120T monofilament Nylon or Polyester are recommended for the best results.

Ink mixing and Adjustment

Before use Rondecat inks must be mixed with the appropriate catalyst as follows:

• Gloss catalyst 10-1-0100 Ratio 6 : 1 Maximum hardness & chemical resistance
• Matt catalyst 10-1-0120 Ratio 3 : 1 Maximum hardness & chemical resistance
• Extra catalyst 10-1-0453 Ratio 20 : 1 Glass / Ceramic printing

For special applications these ratios may be varied. For details, please contact SISS Technical Staff.

After mixing with catalyst reducer/cleaner 10-1-0096, Retarder 10-1-0104 or a combination of these should be used to thin the ink to printing viscosity. After mixing with the catalyst and thinner, the inks will remain usable for approximately 12 hours, depending on local conditions

Drying

Drying time will depend upon a number of factors, such as the film weight deposited type of thinner used; type of substrate and drying temperature. However, the following time / temperature guidelines may be used:

• General – 20 mins @ 120 degrees C Metals – 10 mins @ 120 degrees C
• General – 30 mins @ 100 degrees C Glass – 5 mins @ 120 degrees C
• General – 60 mins @ 80 degrees C Plastics – 10-15 mins @ 90 degrees C

It is recommended that the drying temperature should not exceed 140 degrees C.

Air drying at ambient temperatures is NOT recommended, as it could result in solvent being entrapped in the cured ink film, thus degrading adhesion and resistance properties.

Coverage

Under normal printing conditions, an average coverage of 15 – 45sq mtrs per kg can be expected

Washing up

Reducer/ Cleaner 10-1-0096 should be used

Storage

RONDECAT inks will remain usable for many years, and the catalysts for at least 6 months,
providing they are stored in a cool place, with the lid firmly sealed.

Safety & Handling

RONDECAT inks are formulated to be free of control by the 1972 highly flammable liquids regulations.
Full handling advice is given on a separate H & S Data sheet