3311-2S Medical UV Adhesive UV Moisture Dual Cure 400mJ/cm2 High Hardness Glue for Plastic Bonding

3311-2S Medical UV Adhesive with UV and Moisture Dual Cure

3311-2S is a medical grade UV adhesive featuring a unique UV and moisture dual cure mechanism. UV light cures the exposed adhesive instantly, while moisture curing completes bonding in shadow areas that UV light cannot reach, delivering high hardness and reliable performance for plastic to plastic bonding in medical device assembly.

Key Features

• UV and moisture dual cure – moisture curing reaches shadow areas not exposed to UV light
• Fast curing under UV light at 400 mJ/cm²
• High hardness (Shore D 83) for rigid and dimensionally stable bonds
• High strength bonding with 16 MPa tensile strength
• Reliable anti-aging performance with glass transition temperature of 60°C
• Transparent appearance, fluorescent version available for quality inspection

Applications

• Medical catheter connector assembly – secure bonding of catheter hubs, luer connectors and tubing fittings
• Anesthesia mask assembly – reliable bonding of mask shells, cushions and valve components
• Medical electronic device assembly – bonding and sealing of housings, displays and sensor components
• Shadow area bonding – ideal for joints and undercuts where UV light cannot reach
• Complex geometry assembly – bonding of multi-material plastic components with hidden surfaces
• Other precision plastic assembly bonding – general plastic to plastic bonding in medical manufacturing

Technical Specifications

Packaging & Storage

Standard packaging: 1 kg. Store at 8-28°C in a cool, dry place away from direct sunlight. Contact us for OEM formulation, custom viscosity and packaging options.

FAQ

Q1: How does the dual cure mechanism work?

A: The adhesive cures instantly under UV irradiation at 400 mJ/cm², while the moisture curing mechanism continues to cure adhesive in shadow areas that UV light cannot reach, ensuring complete bonding of complex geometries.

Q2: What materials can this UV adhesive bond?

A: It is specially designed for plastic to plastic bonding, including PC, ABS, PVC and other medical-grade plastics, making it ideal for medical catheter connectors, anesthesia masks and medical electronic devices.

Q3: Why is dual cure important for shadow areas?

A: In assemblies with undercuts, channels or opaque components, UV light cannot reach every surface. The moisture cure mechanism ensures these shadow areas still cure fully, providing reliable bonds across the entire joint.

Q4: What are the storage requirements and shelf life?

A: Shelf life is 12 months when stored at 8-28°C in a cool, dry place away from direct sunlight. Keep the container tightly sealed after use.

Q5: Is a fluorescent version available?

A: Yes. A fluorescent version is available, which allows easy online quality inspection under UV light after bonding.

Q6: What packaging options are available?

A: Standard packaging is 1 kg. Custom packaging such as syringes, bottles and other sizes can be provided upon request for OEM orders.