Auto Injector for Polyurethane & Slow Setting Epoxy

NextStar Auto-Injector Capsule for Polyurethane & Structural Epoxy

The NextStar Auto-Injector Capsule is a professional-grade, low-pressure injection tool designed to automate structural concrete repairs. Engineered for deep resin delivery, this mechanical syringe eliminates manual pumping by maintaining a continuous, uniform pressure of 35 to 40 PSI (2.7 bar). It is the industry-standard choice for injecting single-component polyurethane foams, two-component expanding hydrophobic grouts, and slow-setting structural epoxies. The internal heavy-duty mechanism ensures continuous, unattended chemical delivery for up to 24 hours, making it highly efficient for complex foundation restoration and infrastructure rehabilitation.

Advanced Design Features

• 40mL Fluid Capacity Reservoir: The transparent cylinder body allows technicians to monitor resin consumption in real time and easily refill the capsule mid-injection without removing the port.
• Constant 35–40 PSI Mechanical Tension: Delivers controlled, low-pressure extrusion that prevents substrate blowout while forcing low-viscosity adhesives deep into ultra-fine hairline cracks down to 0.2mm.
• Zero-Leak, High-Adhesion Base: Features a wide-port flat surface flange engineered to maximize surface bond strength with epoxy paste, completely eliminating chemical bypass or port leakage under pressure.
• Omnidirectional 360-Degree Operation: The sealed, leak-proof pressure capsule design enables flawless performance at any angle, including vertical foundation walls, horizontal slabs, and overhead ceilings.
• Cost-Effective Pneumatic Alternative: Replaces heavy, expensive pneumatic injection pumps and complex manifold systems with a lightweight, standalone tool that reduces labor hours and setup times.

Primary Structural Applications

• Foundation Wall Repair: Permanently seals basement cracks against water ingress using expanding polyurethane foam or structural epoxy.
• Infrastructure Rehabilitation: Ideal for stabilizing concrete columns, bridge decks, structural beams, and retaining walls.
• Novice & Professional Versatility: Simple, intuitive operation makes it accessible for first-time DIY foundation repairs while remaining durable enough for commercial contracting teams.

Frequently Asked Questions 

How long does the NextStar Auto-Injector maintain pressure?
The heavy-duty mechanism maintains a steady 35-40 PSI delivery for up to 24 hours or longer, ensuring the resin migrates deep into microscopic voids until a complete, zero-void cure is achieved.

Can I use this injector for overhead concrete cracks?
Yes. The sealed, pressurized design of the capsule prevents leaking, allowing it to be mounted and operated upside down on overhead concrete ceilings and beams.

Is the capsule reusable or refillable?
The NextStar Auto-Injector is fully refillable during the active injection process, allowing you to top off the 40mL reservoir seamlessly during long structural crack runs.