How Epoxy Inks Work
Epoxy inks rely on a chemical curing process rather than simple heat setting.
Two-Part Ink System
Epoxy inks typically consist of a resin and a hardener that must be mixed before use.
Chemical Bonding
Once applied, the ink cures through a chemical reaction, forming a strong, cross-linked surface.
Hard Finish Formation
After curing, the ink becomes rigid, providing excellent resistance to abrasion, moisture, and chemicals.
This process creates a tough coating rather than a flexible print layer.
Key Characteristics of Epoxy Inks
Epoxy inks have distinct properties that set them apart.
- Extremely durable and long-lasting
- High resistance to chemicals and moisture
- Hard, rigid surface finish
- Strong adhesion to non-porous materials
These characteristics make epoxy inks suitable for specialised applications rather than wearable fabrics.
Suitability for Garments and Apparel
Epoxy inks are generally unsuitable for clothing due to their rigidity.
Lack of Flexibility
The hardened ink does not stretch or move with fabric, which can lead to cracking.
Comfort Limitations
The rigid finish can feel uncomfortable when applied to wearable items.
For this reason, epoxy inks are rarely used directly on garments in professional apparel printing.
Common Applications in Australia
In the Australian printing industry, epoxy inks are more commonly used for:
- Branded badges and nameplates
- Labels and identification tags
- Promotional items and accessories
- Industrial or safety signage components
These applications benefit from epoxy ink’s strength and resistance.
Epoxy Inks vs Garment Printing Inks
Compared to water-based or plastisol inks used in garment printing, epoxy inks prioritise durability over flexibility. While garment inks are designed to move with fabric, epoxy inks are intended for rigid or semi-rigid surfaces.
Considerations When Using Epoxy Inks
Using epoxy inks requires careful handling.
Application Expertise
Precise mixing and application are essential for proper curing.
Safety and Compliance
Epoxy systems require appropriate ventilation and safety measures.
End Use Assessment
Selecting epoxy inks should be based on environmental exposure and durability needs.
Professional assessment ensures epoxy inks are used appropriately.
Why Epoxy Inks Matter in Custom Printing
While not a standard choice for apparel, epoxy inks play an important role in specialised branding and industrial printing applications. For Australian businesses requiring extreme durability on non-textile items, epoxy inks provide a reliable, long-lasting solution when used correctly.
