4S Graphics

Diazo Emulsion

Grafix Dxit is a high quality, pigmented aqueous emulsion of water dispersible polymers and monomers, supplied with Diazo powder Sensitizer in a two pack system. Recommended for ceramic printing

Characteristics

• Blue color Diazo emulsion
• Phthalate free
• Excellent print definition on a variety of meshes due to medium solid content and viscosity
• Excellent exposure latitude
• Dual cure emulsion resistant to solvent based and water inks
• Shelf life of sensitized emulsion is 2 to3 weeks if kept below 25° C

Directions for Use

Handle Grafix Dxit under yellow fluorescent tubes or low wattage Tungsten light. Grafix Dxit is supplied as a two-pack kit comprising the Emulsion and Sensitizer Powder in separate bottles. Prior to using the Sensitizer, Material Safety Data Sheet should be carefully read and understood.

Preparation of Sensitizer: Add Luke warm water 8 to 10 times directly to the Sensitizer Powder and shake well to ensure complete solubility of the powder. The prepared Sensitizer should be mixed with the emulsion immediately. Do not store Sensitizer mixed with water.

Preparation of Coating Emulsion: Pour the Sensitizer dissolved in water into the emulsion. Stir thoroughly for approximately 2-3 minutes to ensure emulsion is sensitized uniformly. Allow the emulsion to de-gas for 1 hour so that the air bubbles are disappeared.

Mesh Preparation: Thoroughly degrease the screen prior to application of the coating. Used /reclaimed screens will have to be cleaned and degreased carefully ensure removal of all oily residues. Cleaned screens should be dried with a hot air blower prior to application of the emulsion.

Coating & Drying: Stand the screen on edge, angled away from the operator and, using a good quality coating-trough, proceed as follows: Apply 2 coats to the squeegee side and 2 coats on the underside of the screen. Additional application of coating as required may be done on the underside of the screen with intermediate drying. The screen should be dried horizontally, squeegee side up and stored under dark or yellow light conditions. Dry the screen at a maximum temperature of 86°F (30°C).

Exposure: Achieving correct exposure is essential for optimum stencil performance. Under exposure will result in weak stencil with reduced resistance. Remove dust from the surface of the stencil and tape the positive in position. Place entire screen in a suitable vacuum frame and expose. Test exposures using Exposure Calculator is recommended to ascertain correct exposure timing.

Washout and Drying: After exposure, wash out both sides of the screen under high-pressure spray of water. Continue the washout until all parts of the image appear clean and sharp. Blot off surplus moisture with lint free blotting medium and dry at a maximum temperature of 30°C (86°F)

Storage, Handling & Packing

Storage & Handling: Protect from light including direct sun rays. Store at moderate temperature in dry, well ventilated area. Keep containers tightly closed. Use of hand gloves is recommended.

Shelf-life: When sealed in the original container and stored in cool conditions, Products will maintain its original properties for one year from the date of production 12 months from the date of manufacture. Shelf life of sensitized emulsion is 2 to3 weeks if kept below 25° C

Precaution: Avoid contact with skin and eyes.

Downloads

Product information catalog (296KB)