PPG Semco® 28 Gauge Sem-Flex Dispensing Needle — Tan Hub | Luer Lock & Slip | 1" Length
Precision-engineered. Sem-Flex compatible. The finest-gauge solution for micro-precision dispensing across aerospace, electronics, and medical device applications.
The PPG Semco® 28 GA Sem-Flex Needle is precision-engineered for the most exacting material application requirements — delivering micro-precision flow control, secure Luer Lock & Luer Slip connections, and industrial-grade stainless steel durability where accuracy is absolutely critical.
⚠️ Safety Notice: Always follow applicable safety protocols and manufacturer guidelines when using dispensing equipment. Inspect needles before each use and replace bent or clogged needles immediately.
At a Glance
Technical Specifications
| Specification |
Detail |
| Brand |
PPG – Semco® |
| Needle Type |
Sem-Flex |
| Gauge |
28 GA |
| Length |
1 inch (25.4 mm) |
| Outer Diameter |
0.027" (0.69 mm) |
| Inner Diameter |
0.015" (0.38 mm) |
| Hub Color |
TAN |
| Connection Type |
Luer Lock & Luer Slip |
| Material |
Stainless Steel |
| Compatible With |
Semco® Cartridge Systems & Standard Dispensing Equipment |
Key Features & Benefits
🟤 Tan Color-Coded Hub
Instantly identify the correct gauge in busy work environments — the tan hub provides quick, reliable 28 GA identification, eliminating costly mix-ups and saving critical production time.
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💧 Micro-Precision Flow Control
The exceptionally narrow 0.015" inner diameter delivers micro-precision material flow — engineered for the most exacting fine-detail dispensing applications where absolute accuracy is non-negotiable.
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🔒 Dual Luer Lock & Slip Connection
Luer Lock & Luer Slip compatibility provides a secure, leak-free fit with standard dispensing equipment — preventing slippage and ensuring safe, uninterrupted operation even at fine-gauge pressures.
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🔩 Industrial-Grade Stainless Steel
Robust stainless steel construction resists corrosion and chemical exposure — guaranteeing longevity, consistent performance, and extended use even in the most demanding industrial environments.
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📏 1" Length for Controlled Reach
The 1-inch length provides controlled, precise reach for micro-detail work — balancing accessibility with the tight pressure management required for ultra-fine 28 GA dispensing performance.
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⚙️ Manual & Automated Compatible
Optimized for both manual and automated dispensing systems — delivering reliable, consistent micro-precision performance across hand-operated guns and high-volume production environments alike.
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Common Applications
Aerospace Assembly Electronics & PCB Medical Device Manufacturing Manufacturing Assembly Precision Adhesive Dispensing Sealant Application MRO Operations Micro-Detail Precision Engineering
Complete Your Dispensing Setup
⚠️ Required Accessories
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Semco® Dispensing Cartridge
Holds and feeds your adhesive or sealant material into the needle
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Sem-Flex Compatible Adapter
Connects the Sem-Flex needle securely to your dispensing cartridge system
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⭐ Recommended Accessories
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Pneumatic Dispensing Gun
Consistent, hands-free pressure control — ideal for high-volume production environments
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Pneumatic Hose
Connects your dispensing gun to an air supply for smooth, uninterrupted operation
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Manual Dispensing Gun
Portable, no-air-required option for smaller jobs or fieldwork
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Quality You Can Count On
🎯
Micro-Precision Flow
Manufactured to strict quality standards for dimensionally accurate, repeatable micro-detail results
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🔒
Secure Dual Luer Connection
Luer Lock & Slip fitting prevents leaks and ensures safe, reliable operation
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🔩
Industrial-Grade Durability
Stainless steel construction built for extended use in demanding environments
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🟤
Color-Coded for Speed
Tan hub for instant 28 GA identification in busy work environments
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Tips for Best Results
✓ Use the shortest needle suitable for your job — with 28 GA, minimizing length is critical to maintaining adequate flow pressure
✓ Always cap needles immediately when not in use — micro-bore tips are especially susceptible to clogging
✓ Inspect before each use — replace bent or clogged needles immediately to maintain micro-precision dispensing accuracy
✓ 28 GA is best suited for very low viscosity materials only — high viscosity adhesives may cause excessive back-pressure or clogging
✓ Confirm Luer Lock or Luer Slip compatibility with your dispensing equipment before use
PPG Semco® 28 GA Tan Sem-Flex Needle — Micro-precision dispensing engineered for where accuracy matters most.
Available individually or in bulk. Compatible with Semco® cartridge systems and standard Luer dispensing equipment.
⚠️ Safety & Compliance Notice: Always follow applicable safety protocols and manufacturer guidelines when using dispensing equipment. Inspect needles before each use and replace bent or clogged needles immediately.
Semco® is a registered trademark of PPG Industries. Compatible with Semco® cartridge systems and standard Luer dispensing equipment. Specifications subject to change without notice.
