NAZDAR Metallic Powders & Pastes

technical data sheet

NAZDAR Metallic Powders & Pastes

Metallic pigments can be added to solvent-based and UV-curable screen printing ink. Metallic pigments are available as powders and pastes.

v 7 EN
Ref: v 6 EN

While technical information and advice on the use of this product is provided in good faith, the User bears sole responsibility for selecting the appropriate product for their end-use requirements. Reference the 'Quality Statement' at the end of this document.

User Information

Mesh

Match particle size to the mesh count/mesh opening. When the mesh opening is too small, larger pigment particles are blocked from passing through the screen and onto the substrate, eventually blocking the printing of the ink.

Particle Size (microns)	Mesh Count
45-55 µm	195-55tpi (77tpcm) or lower
40-45 µm	230-48tpi (90tpcm) or lower
35-40 µm	280-34tpi (110tpcm) or lower
20-35 µm	305-34tpi (120tpcm) or lower
10-20 µm	355-34tpi (140tpcm) or lower

Reference your mesh manufacturer's guidelines as to the mesh count, thread diameter and mesh open area to determine the printing requirements with respect to pigment particle size.

Pigment Load

Depending on ink system, mesh count, adhesion, cure, and desired effect, the recommended percentages by weight:

Gold/Coppers:

Powders - Up to 15% by weight
Pastes - Up to 18% by weight

Aluminums

Powders - Up to 8% by weight
Paste - Up to 12% by weight

Chemical reactions in metallic inks may result in viscosity, color and printability changes over time. Mix only enough metallic ink to be used the same day.

When inks are to be printed over Metallic color, the overprinting ink(s) must be evaluated for intercoat adhesion over the Metallic color before proceeding with the production run. To maximize intercoat adhesion over Metallic colors, we recommend that the Metallic color be printed as late as possible in the print sequence.

Leafing / Non- Leafing

Non-leafing pigments are characterized by an even particle distribution throughout the coating and may tend to have less sheen than leafing pigments.

Leafing pigments are at or near the film surface, rather than distributed throughout the coating. Leafing pigments tend to produce a brighter finish than non-leafing pigments; however, the surface can become damaged unless overprinted with clear.

Storage

Close tightly and store in a dry area.

Handling

It is recommended that all personnel mixing and handling these products minimize the creation of dust and wear gloves and safety glasses to prevent contact. See the appropriate Safety Data Sheet for additional information.

Manufacturer's Product Offering

Based on information from our raw material suppliers, these ink products are formulated to contain less than 0.06% lead. If exact heavy metal content is required, independent lab analysis is recommended.

Color Card Materials

Special Effects Color Card (CARDSPL): provides screen printed samples and visual reference of several Metallic Powders and Pastes.