UV Curing Plastic Bonding Adhesive High Viscosity Fast Cure Surface Dry for Small Area Plastic Bonding

UV Curing Plastic Bonding Adhesive

3308 UV Curing Plastic Bonding Adhesive is an amber transparent UV adhesive with high viscosity and fast curing. It provides a quick surface dry (tack-free) finish and good adhesion to a wide range of plastics including PC, PS, ABS, PMMA, PVC and APET. It is recommended for small to medium area plastic-to-plastic bonding such as phone quicksand cases.

Technical Specifications

Key Features

• High viscosity for controlled dispensing and flow
• Fast curing with a good surface dry (tack-free) finish
• Good adhesion to PC, PS, ABS, PMMA, PVC and APET
• Reliable bonding across multiple plastic substrates
• Recommended for small to medium area plastic-to-plastic bonding such as phone quicksand cases
• High hardness (Shore D 68) for a durable bond
• Consistent performance for assembly and packaging

Applications

• Small to medium area plastic-to-plastic bonding such as phone quicksand cases
• Plastic-to-plastic bonding
• Bonding of PC, PS, ABS, PMMA, PVC and APET parts
• Consumer electronics and phone case assembly
• Display and packaging plastic assembly

Operation and Curing Guide

1. Surface preparation: clean the plastic surfaces to remove oil, dust and contaminants for maximum adhesion.
2. Dispensing: apply the adhesive evenly to the bonding area.
3. Assembly: position and join the parts, pressing to spread the adhesive and removing any excess before curing.
4. UV curing: expose the adhesive to UV light at 500 mJ/cm² (UV) until fully cured.
5. Inspection: verify a uniform bond with a clean, surface dry finish and no bubbles.
6. Rework: gently separate bonded parts, clean the surfaces and re-apply the adhesive when repair is needed.

FAQ

Q1: What is the 3308 adhesive mainly used for?
3308 is a UV curing plastic bonding adhesive recommended for small to medium area plastic-to-plastic bonding such as phone quicksand cases, with good adhesion to PC, PS, ABS, PMMA, PVC and APET.

Q2: Which plastics does it bond?
It provides good adhesion to a wide range of plastics including PC, PS, ABS, PMMA, PVC and APET.

Q3: What does surface dry mean?
The adhesive cures quickly to a good surface dry (tack-free) finish, so bonded parts can be handled sooner after UV exposure.

Q4: Why is high viscosity useful?
The high viscosity gives good control for covering the bonding area without excessive flow or squeeze-out.

Q5: What bond strength does it provide?
3308 has a Shore D 68 hardness, a shear strength of 9.5 MPa on PC/PC and 6.8 MPa on PC/PVC.

Q6: What are the storage conditions and packaging?
Store at 8-28°C in the original sealed container. Shelf life is 12 months. Available in 1kg / 5kg packaging.