Water-Based vs Plastisol Screen Printing Ink: Which Is Right for Your Order?
By The Velocity Wear Team
Plastisol ink cures hard and bright, making it the default for most screen printing operations worldwide. Water-based ink soaks into the fabric for a softer, breathable finish that feels like part of the garment. For most commercial runs on white or light garments, water-based is the premium-feel choice; for dark garments needing opaque coverage, plastisol remains the reliable workhorse.
What Is Plastisol Ink?
Plastisol is a PVC-based ink suspended in plasticiser. It sits on top of the fabric rather than soaking in, and it cures by reaching a minimum temperature of around 160°C (320°F) at which point the particles fuse into a durable, flexible film. Plastisol does not dry in the screen, which gives printers long working windows and consistent results. It is highly opaque, making it excellent for printing on black and dark garments without a separate underbase step (though an underbase is still recommended for bright colours on darks).
What Is Water-Based Ink?
Water-based inks use water as the carrier for pigment. They penetrate the fabric fibres during printing and the water evaporates during curing, leaving pigment bonded within the weave. The result is a print that feels like dyed cloth — often described as a "vintage" or "worn-in" finish from the first wash. Water-based inks require more careful screen management because they can dry in the mesh during production if not kept humid, and they generally require higher mesh counts and more controlled curing conditions.
Hand-Feel Comparison
- Plastisol: distinct raised film on the surface — you can feel the edge of the print with your fingertip; heavier ink deposits feel noticeably "plastic"
- Water-based: virtually no surface texture — the print breathes and moves with the fabric, ideal for garments worn close to skin
- High-density plastisol builds up dramatic 3D texture intentionally; water-based does not achieve this effect
- Many premium streetwear labels specify water-based for tees and plastisol for outerwear to balance feel and durability
Opacity on Dark Garments
This is where plastisol has a structural advantage. Its PVC base is naturally opaque and bright, even in thin deposits. Water-based ink on dark garments requires either a discharge agent (which chemically removes the fabric dye to create a receptive surface) or a water-based underbase — both of which add production steps and cost. Discharge printing combined with water-based overprinting delivers exceptional softness on dark garments but requires 100% reactive-dyed cotton and is not suitable for all colourways.
Wash Durability
Properly cured plastisol is extremely durable — the fused film resists fading and cracking for many years under normal wash conditions. Under-cured plastisol (a common production error) peels and cracks within a few washes. Water-based inks, when cured at the correct temperature, are equally durable and often show less cracking because the pigment is within the fibre rather than sitting on top of it. Washing inside-out in cold water prolongs both ink types significantly.
Environmental Profile
Water-based inks are generally considered more environmentally favourable — they contain no PVC, require no plasticiser, and excess ink can be washed from screens with water rather than solvent. However, the pigments themselves must still be handled and disposed of responsibly. PVC-free and phthalate-free plastisol formulations have closed much of the gap, and many certified plastisol products now comply with OEKO-TEX and CPSIA standards. If sustainability credentials matter for your brand story, specify water-based or discharge printing and ask your decorator for their ink certification documentation.
“"The feel of a water-based print on a 200gsm ring-spun tee is genuinely different to anything plastisol can produce — it's the difference between a print on a garment and a garment that happens to have a print." — Velocity Wear production team”
Velocity Wear offers both plastisol and water-based screen printing from a 20-piece minimum order, with delivery tracked to the UK, USA, Europe, and worldwide. Use the free Design Studio to visualise your design, compare ink options with the instant price calculator, and request a free quote to get production underway.