Can Water-based Pigments Be Used For Silicone Screen Printing?
No, water-based pigments are generally not suitable for silicone screen printing because silicone is hydrophobic (water-repellent) and requires specialized ink chemistry for proper adhesion and curing.
Why Water-Based Pigments Don't Work Well with Silicone:
Poor Adhesion – Silicone repels water, causing water-based inks to bead up or flake off.
Curing Issues – Silicone inks typically cure via platinum or peroxide catalysts or heat, while water-based inks rely on evaporation or UV curing, which doesn't bond well with silicone.
Durability Problems – Even if applied, water-based pigments may wash off or degrade quickly.
Recommended Alternatives for Silicone Screen Printing:
Silicone-Based Inks
Specifically formulated for silicone substrates.
Cure via heat or catalyst (e.g., two-part platinum-cure silicone ink).
Excellent flexibility & wash resistance.
Solvent-Based or UV-Curable Inks (if modified for silicone)
Some hybrid inks are designed for adhesion on silicone.
Requires surface treatment (e.g., plasma or flame treatment) for better bonding.
Pigment Dispersions in Silicone Carriers
Pre-dispersed pigments in silicone oil/resin for screen printing.
Best Practices for Silicone Printing:
✔ Surface Treatment – Corona, plasma, or primer can help if using non-silicone inks.
✔ Test Curing – Ensure proper adhesion and flexibility after curing.