3311-2D Medical UV Adhesive for Plastic Bonding

3311-2D is a high-performance medical-grade UV-curing adhesive specially formulated for the medical device industry. Featuring ultra-low viscosity, rapid curing, low odor, low irritation, and outstanding impact and aging resistance, it is designed for precision, high-strength plastic-to-plastic bonding. It provides durable, reliable sealing and joining for medical catheter connectors, anesthesia masks, and medical electronic devices in complex healthcare environments.

Key Features

Ultra-Low Viscosity & High Flowability: With a viscosity as low as 150 ± 50 mPa·s, it offers excellent penetration to quickly fill micro-gaps, making it ideal for micro-component assembly and high-precision automated dispensing.

High Strength & Impact Resistance: Provides high tensile strength and superior impact resistance after curing, effectively absorbing drops, mechanical stress, and continuous mechanical vibration.

Rapid UV Curing: Cures within seconds under UV light at 400 mJ/cm², significantly shortening production cycles and boosting assembly line efficiency.

Low Odor & Low Irritation Formula: Specifically developed for demanding medical manufacturing environments, providing a mild, low-irritation user experience.

Exceptional Aging & Weather Resistance: Offers superior resistance to aging, resisting yellowing and embrittlement over prolonged use and environmental changes.

Optional Fluorescent Indicator: In addition to the standard transparent appearance, a fluorescing version is available for convenient quality control (QC) and dispense verification under UV/black light.

• Applications
  Medical Catheters & Connectors: High-precision, high-strength bonding of medical tubing, Y-connectors, luer locks, and fluid delivery line components.
• Anesthesia & Respiratory Masks: Sealing and structural bonding of anesthesia masks, oxygen masks, and related plastic housings.
• Medical Electronic Devices: Enclosure bonding, plastic component joining, and sensor encapsulation for portable medical instruments and diagnostic devices.
• Precision Medical Devices: Plastic-to-plastic assembly applications requiring high flowability, rapid cure speed, and low odor.

Technical Specifications

Packaging & Storage

• Standard Packaging: 1 kg per bottle.

• Storage Conditions: Store in a cool, dry place at 8–28°C away from direct sunlight and UV light. Keep container tightly sealed after use.

• Customization Services: OEM formulations, customized fluorescence levels, and custom packaging options (such as syringes or bulk drums) are available upon request.

FAQ

Q1: What is the curing speed of 3311-2D UV adhesive?

A: The adhesive cures within seconds under UV irradiation at 400 mJ/cm². Actual cure speed depends on the UV light intensity, wavelength, and adhesive layer thickness.

Q2: What is the benefit of the fluorescent option?

A: The fluorescing formula glows under UV/black light inspection, enabling automated optical inspection (AOI) and quality control to verify coverage, placement, and dispense quantity.

Q3: What advantages does the ultra-low viscosity (150 mPa·s) offer?

A: The low viscosity provides superior capillary action, allowing the adhesive to easily wicking into tight gaps and close-fitting plastic joints while minimizing bubble entrapment during high-speed dispensing.

Q4: How does 3311-2D perform regarding impact and aging resistance?

A: Engineered with a crosslinked polymer network combined with a Shore D 55 hardness and 14 MPa tensile strength, 3311-2D maintains high bond strength without cracking or debonding when subjected to repeated physical shocks, drops, and long-term storage.

Q5: What are the storage requirements and shelf life?

A: The shelf life is 12 months when stored sealed at 8–28°C in a cool, dry place protected from light exposure.

Q6: Is this adhesive suitable for automated dispensing systems?

A: Yes. The 150 ± 50 mPa·s viscosity guarantees smooth, consistent flow and precise volumetric control, making it fully compatible with automated pneumatic and electric dispensing systems.