Dymax T18-125-TT-50 Free-Flow Taper Tips (Green) (Sold In Packages Of 50)
Dymax T18-125-TT-50 Free-Flow Taper Tips (Green), Pack of 50
The Dymax T18-125-TT-50 is an 18-gauge green free-flow taper tip designed for precision dispensing of medium-to-high viscosity fluids, including UV-cure adhesives and light-curable materials. Molded from polyethylene with a UV-light block additive to protect photosensitive fluids from premature curing during dispensing. At 1.25 inches (31.75 mm) in length with a 0.033 inch (0.84 mm) inner diameter, these tips provide a larger orifice than the 20-gauge T20 tips, making them well-suited for slightly lower viscosity fluids or applications requiring a larger deposit. Lead time is 1–2 weeks. Sold in packages of 50.
Sold in packages of 50 tips.
Specifications
| Part Number | T18-125-TT-50 |
| Gauge | 18 gauge |
| Color | Green |
| Length | 1.25 in (31.75 mm) |
| Inner Diameter (ID) | 0.033 in (0.84 mm) |
| Tip Type | Free-flow taper tip |
| Material | Polyethylene with UV-light block additive |
| Fluid Compatibility | Medium-to-high viscosity fluids, UV-cure adhesives, light-curable materials |
| Pack Quantity | 50 tips/package |
| Lead Time | 1–2 weeks |
| Manufacturer | Dymax Corporation |
Frequently Asked Questions
What is the difference between the T18 (green) and T20 (pink) taper tips?
The T18-125-TT-50 (18 gauge, 0.033" ID) has a larger inner diameter than the T20-125-TT-50 (20 gauge, 0.023" ID). A larger gauge number means a smaller orifice — so the 18-gauge green tip flows more freely and is better suited for medium viscosity fluids or applications requiring a slightly larger deposit. The 20-gauge pink tip is preferred for finer, more controlled deposits with higher viscosity materials. Both tips share the same 1.25" length and UV-light block polyethylene construction.
Why does the T18-125-TT-50 have a UV-light block additive?
UV-cure adhesives and light-curable coatings will begin to polymerize if exposed to ambient UV light during dispensing. The UV-light block additive in the polyethylene tip material prevents light from passing through the tip walls, protecting the fluid inside from premature curing. This is essential for maintaining consistent viscosity and flow during production runs with Dymax and other UV-cure adhesive systems.
What is a free-flow taper tip and when should I use one?
Free-flow taper tips have a tapered, conical shape that gradually narrows to the dispensing orifice, allowing medium-to-high viscosity fluids to flow smoothly without the back-pressure buildup that can occur with straight needle tips. They are preferred for UV adhesives, epoxies, and other thicker materials where consistent flow and minimal clogging are important. For very low viscosity fluids requiring fine, precise placement, a needle tip may be more appropriate.
Are these tips compatible with the Dymax SD-200 dispenser?
Yes — Dymax free-flow taper tips are designed for use with Dymax syringe dispensers including the SD-200, and are compatible with standard Luer-lock syringe fittings. They work with 3cc, 5cc, 10cc, and 30cc syringes. Always verify tip-to-syringe compatibility based on the Luer fitting type before ordering in volume.
