How to Verify Metal and Glass Ink Adhesion Before Scaling Up

Before placing a volume order, evaluate ink adhesion on samples that reflect the actual metal or glass part and its planned production process. Use the intended surface condition, printing method, and processing settings, then review both adhesion and print appearance. Shichuangli lists several methods for its PP ink, but its available product information does not confirm metal- or glass-specific suitability or define an adhesion test and pass threshold.

What to Check Before a Production Run

• Print on a representative piece of the actual metal or glass substrate. A trial on a different material may not predict performance on the production part.
• Apply the same surface preparation, printing method, and process conditions planned for production. Record these details alongside the sample results.
• Inspect the finished print for attachment and visual consistency after processing. Agree with the supplier on a suitable test procedure and acceptance criteria for the specific application.
• Confirm the ink is appropriate for the intended substrate before scaling up. The listed minimum order quantity is 1,000 g; the listed delivery time is three working days, although timing may vary with the process.

Plan a Representative Adhesion Trial

A useful sample evaluation mirrors the intended production setup as closely as possible. Identify the precise metal or glass part, its surface condition, the selected printing method, and the process settings. Keep these factors consistent across trial pieces so the results can be reviewed against a clear record.

After processing, examine the printed area for adhesion and appearance. Keep approved samples as references for future production checks. If the substrate, surface preparation, or printing process changes, repeat the trial rather than assuming the previous result still applies.

What the product information does—and does not—say

Shichuangli identifies the product as PP ink, item SCL-00YM, supplied at a net weight of 1,000 g per piece. Listed colors are black, white, red, blue, yellow, and green. The stated printing methods are screen printing, pad printing, offset printing, and screen flexographic printing.

The available details do not specify a metal- or glass-specific adhesion procedure, curing settings, durability test, or numerical acceptance limit. These requirements should be discussed with the supplier for the intended part and use. Do not treat an unlisted test condition as a confirmed product specification.

Examples of stated applications include shampoo bottles, cosmetic bottles, stationery products, and batteries. Shichuangli also describes work across consumer goods, electronics and household appliances, automotive parts, and packaging. These examples provide context for its printing activities, but do not establish adhesion performance on every metal or glass surface.

The company profile lists IECEx certificate IECEx PTB 05.0006X for an electromagnetic valve and trademark registrations associated with printing equipment. Neither is presented as certification of PP ink adhesion on metal or glass. Similarly, a case involving a Saudi Arabian hotel-product distributor describes screen printing, heat-transfer printing, and hot stamping on different materials; it is not a documented adhesion test for this ink.

Sample Review and Scale-Up Checklist

Frequently Asked Questions

Is adhesion on metal or glass confirmed in the supplied product details?

No. The information does not identify metal or glass as confirmed application materials or report substrate-specific test results. Validate performance on the actual material before production.

Which printing processes are listed?

The listed options are screen printing, pad printing, offset printing, and screen flexographic printing. Confirm which method suits the part and planned production conditions.

What should be settled before ordering for volume?

Discuss the substrate and surface condition, printing method, process settings, inspection method, and pass criteria with the supplier. The available product data does not prescribe a test protocol or numerical pass limit.

Recommendation

Move from samples to volume only after testing the ink on the intended metal or glass component under representative production conditions. Record the observed adhesion and print appearance, retain an approved reference sample, and agree on application-specific acceptance criteria with the supplier. Shichuangli states that it offers OEM/ODM customization and technical training; its company profile describes a factory training base of more than 1,600 square meters. For guidance on the PP ink and a particular substrate, contact support@shichuanglimachine.com.

About the Company

Dongguan Shichuangli Zhihui Technology Co., Ltd. is located in Huangjiang Town, Dongguan, Guangdong. Established in 2008, the company combines printing-equipment design, research and development, manufacturing, sales, and technical training. Its factory training base covers more than 1,600 square meters, and its products include printing equipment and supporting materials such as inks. Listed credentials include IECEx certificate IECEx PTB 05.0006X for an electromagnetic valve and trademark registration certificate 42347920 for printing-related goods; neither certifies PP ink adhesion on metal or glass. The company has also described work with a Saudi Arabian hotel-product distributor.