Custom Manufacturing & Precision Machining Company
Pad Printing2025-06-23T08:34:50+00:00

Pad Printing

As a versatile solution for decorating complex shapes and hard-to-print surfaces with precision, whether you’re working with plastic, metal, or coated parts, pad printing delivers clean, consistent results across industries.
  • Suitable for printing on irregular and curved surfaces
  • Vibrant, long-lasting prints with fine detail
  • Single or multicolor capability
  • ISO 9001:2015 certified quality

What is Pad Printing?

Pad printing is a versatile and precise printing method that uses a silicone pad to transfer ink onto various-shaped surfaces, including irregular ones and curved ones. This process ensures high-quality and fine printing results, making it highly suitable for brand logos, signs, and complex pattern designs on items such as promotional products, automotive parts, and electronic devices.
With its ability to print on a wide range of materials, including plastics, metals, and ceramics, pad printing is an excellent solution for both small and medium-sized production runs. The process provides vibrant, durable prints that stand up to wear and handling, offering a cost-effective solution for businesses looking to add detailed custom designs to their products.

Pad Printing: 6-Step Process Explained

Schematic of pad printing process step 1

Step 1: Ink Plate Moves Beneath Pad
The ink plate (also called the cliché) containing the etched image slides into position directly under the silicone pad.

Schematic of pad printing process step 2

Step 2: Pad Picks Up Ink
The silicone pad presses down onto the ink-filled etched area, picking up a thin layer of ink in the shape of the design.

Schematic of pad printing process step3

Step 3: Pad Lifts Off
The pad lifts straight up, carrying the inked image on its surface.

Schematic of pad printing process step 4

Step 4: Ink Plate Retracts
The ink plate moves out of the way to make room for the object being printed.

Schematic of pad printing process step 5

Step 5: Pad Transfers Image to Object
The pad presses down onto the object’s surface, transferring the ink from the pad to the product precisely.

Schematic of pad printing process step 6

Step 6: Pad Lifts – Print Complete
The pad lifts away, leaving a clean, detailed image on the product. The print cycle is complete and ready for the next repetition.

Advantages of Choosing Us to Pad Print Your Product

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Excellent Surface Versatility

It can print on complex surfaces, textures, and materials—from plastic and metal to curved or uneven finishes.

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Flexible Production Volumes

Whether you need quick prototypes or high-volume batches, pad printing easily scales to meet demand.

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Long-Lasting Results

Pad printing produces permanent markings that resist wear, making it ideal for both indoor and outdoor applications.

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Cost-Effective Customization

No need for additional labeling or adhesives—pad printing directly applies graphics, reducing production costs.

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Wide Color Range

From single-color logos to full-color graphics, pad printing supports a broad spectrum of color applications.

What Do You Need to Prepare for Pad Printing?

To successfully pad print your part, please provide the following information:

  • 3D CAD Model or Part Link
    A digital model helps us evaluate surface geometry and positioning.

  • 2D Drawing with Graphic Placement
    Clearly indicate where the graphics should be applied on the part.

  • Vector Artwork File
    An Adobe Illustrator (.AI) file specifying the exact size and shape of the graphic(s).

  • Order Quantity
    Let us know how many parts you need printed to help us plan the production process.

  • Color Details
    Please include Pantone (PMS) numbers or equivalent color specifications.

  • Material Type
    Commonly supported materials include ABS, PC, and ABS/PC blends. For other materials, feel free to consult us to confirm compatibility with pad printing.

pad printing

*Note:
We’re continually expanding our pad printing capabilities. If you have questions or unique requirements, please reach out to your account representative for assistance.

Single Color Pad Printing

  • We offer a variety of single-color pad printing machines to suit different part sizes and applications. By selecting the right equipment for each job, we ensure consistent, high-quality prints.
  • Our facility includes both open well and sealed cup systems, as well as in-house automation for high-volume, cost-effective production. We support a wide range of industries—automotive, medical, electronics, and so on—and offer custom and PMS color matching.

  • All work is performed under our ISO 9001:2015 certified quality system, ensuring reliable and repeatable results.

Multi-Color Pad Printing

  • We specialize in high-quality multicolor pad printing with the capacity to handle large-volume orders efficiently. Our advanced carousel-style pad printers offer precise registration and fast production, making them ideal for complex, multi-color graphics—including gradients and halftones.

  • All printing is performed under our ISO 9001:2015 certified quality management system, ensuring consistent, accurate, and reliable results every time.

Comparison Between Different Types of Surface Treatment

Surface TreatmentDescriptionKey BenefitsTypical ApplicationsPrice Comparison
AnodizingElectrochemical process that thickens the oxide layer on metal.Corrosion and wear resistance, aesthetic finish.Aerospace, automotive, electronicsMedium
Hot StampingApplying metallic foil with heat and pressure.Vibrant, metallic finishes.Packaging, automotive, promotional itemsMedium
Laser EngravingUsing lasers to etch designs on surfaces.Precise, permanent markings.Branding, industrial parts, electronicsMedium
Pad PrintingTransferring ink using a silicone pad.High-quality prints on irregular shapes.Medical devices, consumer products, electronicsLow
Sand BlastingBlasting abrasive materials to clean or texture surfaces.Matte or textured finishes.Metal, glass, stone, automotive partsLow
ElectroplatingDepositing metal onto surfaces using electricity.Corrosion resistance, improved conductivity.Jewelry, automotive, electrical componentsMedium
SprayingApplying coatings via spray.Fast application of protective coatings.Automotive, machinery, constructionLow
PVDVacuum deposition of metal films.Durable, aesthetic metal finishes.Electronics, jewelry, automotiveHigh

FAQs question mark

Frequently Asked Questions

Can KingStar Mold help with fixture design for pad printing?2025-06-23T07:43:16+00:00

Yes. Accurate fixture design is critical for consistent pad printing—especially for multicolor applications or irregularly shaped parts. KingStar Mold designs and manufactures custom fixtures in-house, ensuring precise alignment and repeatability. We account for part geometry, ink transfer angles, and automation compatibility to support both manual and automated production workflows.

How durable is pad printing on plastic parts?2025-06-23T07:42:29+00:00

The durability depends on plastic type, ink system, surface prep, and environment. Below are rough longevity estimates under typical indoor/outdoor conditions.

1. Durability by Plastic Type and Environment

Plastic Type Indoor Use Outdoor Use Notes Source
ABS 3–5 years 1–3 years Good adhesion; fades under strong UV unless UV-resistant inks are used Plastic Decorating Magazine
PC (Polycarbonate) 5+ years 2–4 years High UV and heat resistance; durable with proper inks RadTech UV Guide
ABS/PC Blend 3–5 years 1–3 years Similar to ABS; balanced properties Industry data (KingStar Mold)
PP/PE <1 year <1 year Requires pre-treatment; inks less durable if untreated 3M Technical Bulletin
Nylon (PA) 1–2 years <1 year Moisture affects durability; pre-treatment needed Coatings Tech
POM (Acetal) <1 year <1 year Difficult to print; ink tends to peel Industry reports

2. Durability by Environmental Exposure and Ink Treatment

Condition Typical Lifespan Remarks Source
Indoor, dry, low abrasion 3–7 years Longest lifespan; minimal wear PMMI Packaging
Outdoor, UV exposure 1–3 years UV-resistant inks can extend life RadTech UV Guide
Chemical exposure (mild solvents) 1–2 years Depends on ink chemistry and surface prep Ink World Magazine
Abrasion (handling, friction) 1–3 years Topcoats or curing improves resistance Coatings Tech

3. Impact of Post-Treatments

Post-Treatment Effect on Durability Lifespan Increase Source
Heat curing Improves adhesion and chemical resistance +1–3 years RadTech UV Guide
UV curing Enhances outdoor and abrasion resistance +1–4 years UV+EB Technology
Clear coating/topcoat Adds scratch and chemical resistance +2–5 years Industry case studies
What’s the typical lead time for pad printing?2025-06-23T07:37:57+00:00

Lead times vary depending on part complexity, number of colors, and quantity. For standard single-color jobs on approved materials, lead time can be as short as 3–5 business days after artwork approval. Multicolor or custom automation setups may take 1–2 weeks. At KingStar Mold, we aim to minimize turnaround through efficient in-house tooling, fixture design, and print testing.

Does KingStar Mold follow any quality certifications for pad printing?2025-06-23T07:37:24+00:00

Absolutely. All of our pad printing processes are conducted under our ISO 9001:2015 certified quality management system, ensuring consistent, high-quality results for every project.

How many colors can pad printing apply?2025-06-23T07:36:46+00:00

Pad printing can apply from one up to six or more colors, depending on the equipment and artwork complexity. For most industrial applications, up to four-color pad printing is commonly used to achieve precise, multi-layered graphics.

At KingStar Mold, we operate advanced multi-color carousel-style pad printing machines that are designed for accurate color-to-color registration. These machines rotate the part through multiple print stations, with each station applying a different color. This setup allows us to produce:

  • Tightly registered multi-color logos

  • Full-color gradients and halftones

  • Complex image transfers on curved or uneven surfaces

Thanks to our automated alignment and indexing systems, we can maintain consistent registration even in high-speed production. Multi-color pad printing is ideal for industries requiring branded or decorative finishes, such as medical devices, automotive components, electronics housings, and consumer products.

We also offer custom and Pantone (PMS) color matching to ensure branding accuracy across production runs.

If you have specific multi-color design needs, our engineers can help evaluate artwork suitability and recommend the best pad printing setup.

What materials can be pad printed?2025-06-23T07:34:51+00:00

Pad printing is highly versatile and works on a wide range of materials, making it ideal for decorating complex or irregularly shaped parts. Common pad-printable materials include:

  • Plastics:
    Most thermoplastics can be pad printed, including ABS, PC, ABS/PC blends, PP, PE, PS, Nylon, and acetal (POM). However, surface energy and ink adhesion vary by material, so proper surface preparation or pre-treatment (like flame or plasma treatment) may be required—especially for low-surface-energy plastics like PP or PE.

  • Metals:
    Stainless steel, aluminum, and other metals can be pad printed, especially when pre-treated with primers or surface coatings to improve ink adhesion. This is common in the medical and electronics industries.

  • Glass and Ceramics:
    With specialized inks and curing processes (such as UV or thermal curing), pad printing can be applied to glassware, ceramic items, and coated surfaces. These applications are often found in packaging or home goods.

  • Rubber and Silicone:
    Some elastomers can be pad printed using specially formulated inks. Silicone items typically require a primer or special adhesion promoter for durability.

  • Painted, Coated, or Plated Surfaces:
    Pad printing is frequently used to add branding or labels to painted or powder-coated parts, anodized aluminum, or electroplated plastics, assuming proper ink and surface compatibility.

At KingStar Mold, we most commonly pad print on ABS, PC, and ABS/PC-blend plastic parts used in injection molding. For other materials or advanced surface finishes, our team will evaluate ink compatibility, adhesion strength, and durability to ensure the best result.

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