High Gloss Water Based Overprint Varnish High Wear Resistant

High-Gloss & High-Wear Resistant Water-Based Varnish is an eco-friendly water-based coating material specially formulated for offset printing, suitable for offset press in-line and tail coating processes. It forms a highly glossy and transparent film with outstanding wear and scratch resistance. Adopting solvent-free water-based formula, it features low odor and green environmental performance. With excellent leveling, strong adhesion and fast drying speed, it is compatible with various printing paper materials, effectively enhancing the brightness and surface protection of printed products. Widely applied in high-end packaging, color boxes, picture albums and trademark printing, it serves as an ideal alternative to traditional lamination processes.

Core Product Features

Rapid thermal curing allows direct stacking after coating. It simplifies production procedures and perfectly replaces lamination processes, greatly saving material and labor costs.

How to choose:

1. Prioritize this model for high-end printing products requiring high gloss and strong scratch & wear resistance.

2. Preferred for easily abraded printed products such as color boxes and outer packaging.

3. The standard model is suitable for high-speed offset in-line production lines and large-batch orders.

4. Specially selected for orders with environmental testing and export qualification requirements.

How to use:

1. Stir thoroughly before use. No dilution is required under normal working conditions for direct on-machine coating.

2. Adjust coating roller pressure and film thickness, and match appropriate drying temperature and machine speed.

3. Support synchronous offset in-line coating to complete printing and varnishing in one step.

4. Clean roller equipment with clean water after operation to prevent varnish drying and clogging.

5. Store in a sealed, cool and shaded place, away from fire sources and high-temperature environments.

Q1: What causes insufficient gloss after coating?

Caused by inadequate stirring, ultra-thin coating or low drying temperature. Properly increase the coating dosage and raise the drying temperature to restore high-gloss effect.

Q2: How to solve decreased wear resistance of high-gloss varnish?

Ensure the bottom ink is completely dried before coating. Increase curing temperature and form a standard thick film, and avoid production under low temperature and low speed.

Q3: How to solve foaming and shrinkage cavities during varnish application?

Mainly caused by excessive workshop humidity and dust impurities on rollers or plates. Clean the equipment and substrates and control workshop humidity for improvement.

Q4: How to solve adhesion and smudging of stacked coated products?

Reduce machine running speed and strengthen drying & curing. Control coating dosage to avoid incomplete curing caused by excessive film thickness.

Q5: Can it be mixed with ordinary varnish?

Mixing is not recommended. It will damage the high-gloss and wear-resistant film structure, resulting in dim gloss, reduced wear resistance and foggy film surface.

Q6: Can it completely replace the lamination process?

It can fully replace lamination for conventional high-end packaging and picture albums. Lamination is recommended for enhanced protection in outdoor and heavy friction working conditions.

Q7: Is dilution with auxiliaries required?

The finished product is pre-adjusted for direct use in normal production. Arbitrary dilution is prohibited, otherwise the gloss and wear resistance will be reduced.