01. What Materials and Products Can a Pad Printing Machine Print?
Substrate Versatility & Surface Geometry Range
• Core Rule: As long as the component can be secured in a custom fixture, a pad printer can transfer ink to virtually any solid substrate—including engineering plastics (ABS, PP, PC, PVC, acrylic), metals, glass, ceramics, silicone rubber, leather, and wood.
• Geometry Advantage: The deformation of the high-resilience silicone pad allows flawless ink transfer across 3D curved, spherical, cylindrical, and stepped/recessed surfaces where flatbed screen printing fails.
1. Material Compatibility & Dedicated Ink Pairing Matrix
| Material Category | Representative Workpieces | Ink Selection & Curing Method | Adhesion Performance |
|---|---|---|---|
| Rigid Plastics | ABS, PC, PS, PVC, Acrylic | Solvent-based 1K/2K ABS Inks | Passes cross-hatch test, alcohol & scratch resistant |
| Polypropylene (PP) | Bottles, food containers, stationery | Shichuangli Pretreatment-Free PP Ink | Eliminates flame/corona treatment; ROHS compliant |
| Silicone Rubber | Keypads, smart bands, seals | High-temp silicone ink (150–200°C cure) | High elasticity, zero cracking under 300,000+ flex cycles |
| Metals & Alloys | Stainless steel, aluminum, anodized parts | 2-component epoxy metal ink (baking cure) | High hardness, solvent & salt-spray resistant |
| Glass & Ceramics | Cosmetic jars, drinkware, ceramic tiles | Glass ceramic enamel inks (thermal bake) | Dishwasher safe, chemical & water resistant |
| Leather & Wood | Leather goods, wooden crafts, tool handles | High-flexibility specialized soft inks | Non-brittle, natural surface penetration |
2. Recommended Industrial Equipment & Tooling
3. High-Frequency Industrial Product Applications
- Electronics & Appliances: Remote control keycaps, calculator keypads, phone cases, chargers, power tool housings, and navigation panels.
- Consumer Packaging: Cosmetic bottle caps, skincare containers, drinkware bases, and thermal flasks.
- Toys & Stationery: Scale model figures, plastic building blocks, pen barrels, and rulers.
- Hardware & Metrology: Tool handles, dial calipers, micrometer scale graduations, and metal identification tags.
- Automotive Interiors: Dashboard buttons, indicator icons, switch toggles, and air vent trim accents.
To give overseas manufacturers total peace of mind, we provide first-time free sample proofing on your actual workpieces.
• Risk-Free Validation: Send sample parts and artwork files to our factory in Dongguan. Our master technicians will fixture, print, and test ink adhesion.
• Transparent Terms: Custom jigging and proofing labor are completely free on your initial trial run; clients only cover the carrier shipping fees.
• Lead Time: Sampling is finished promptly within 48 hours after parts arrive at our facility (total transit time depends on your chosen courier).
4. Key Engineering FAQs
Q: Can pad printing print on 3D curved, spherical, and recessed surfaces?
A: Yes. The flexible silicone pad deforms to conform to curved, spherical, and recessed geometries. For circumferences larger than standard pad stroke, indexable rotating fixtures or cylindrical screen printers are utilized.
Q: Can PP plastic be printed directly without flame or corona treatment?
A: Yes. Using Shichuangli's specialized zero-pretreatment PP ink (5μm particle fineness), you can skip flame or corona surface activation while maintaining excellent alcohol, sweat, and cross-hatch adhesion.
Q: How does the first-time free sample proofing work?
A: Simply ship your raw parts to our Dongguan plant. We complete fixture set-up and trial printing within 48 hours of receipt at zero labor or tooling cost to you (you only handle courier freight), and provide high-resolution photos/video or express the printed samples back for your sign-off.
Q: Will printed text on silicone rubber keypads rub off?
A: When printed with high-temperature silicone ink and cured at 150–200°C, the ink bonds molecularly with the substrate, enduring over 300,000 keystrokes and extensive solvent exposure without peeling.