Permabond UV605 Low Viscosity UV Glue for Glass and Crystal Bonding

Permabond UV605 is a very low viscosity, high strength adhesive that cures on exposure to UV light. Its optical clarity and resistance to yellowing make it a strong choice for glass and crystal bonds where the joint stays visible. At 75 cP it wicks into a joint by capillary action, so you can assemble parts first and apply the adhesive afterward.

Key Properties

• Chemistry: Methacrylate ester, 100% solids, no solvents
• Appearance: Colorless, low viscosity liquid (75 mPa.s at 25°C, 20 rpm)
• Cure wavelength: 365 to 400 nm UV light
• Fixture time: 3 seconds under a high-intensity UV light guide, 4 seconds under a 100 mW/cm² LED, 15 seconds under a 4 mW/cm² handheld lamp
• Tensile shear (steel to glass): 10 to 14 N/mm² (1,450 to 2,000 psi)
• Tensile strength (ISO 37): 14 N/mm² (2,000 psi), 90% elongation
• Hardness: 65 to 75 Shore D
• Refractive index (cured): greater than 1.490
• Service temperature: down to -55°C (-67°F). Handles brief heat exposure such as paint baking or wave soldering if the joint is not under heavy stress.

Compatible Surfaces

• Glass and crystal: clear, strong bonds for visible joints
• Metal: strong adhesion. Lightly abrade aluminum, copper and their alloys before bonding to remove the oxide layer.
• Plastics: test thermoplastics for compatibility first. Mold release agents can weaken the bond.

Why Choose UV605

• Bond after assembly: the thin viscosity lets the adhesive wick into the joint once parts are already positioned.
• Cures with simple lamps: an inexpensive handheld UV lamp is enough. Higher-power industrial lamps cure it faster.
• Stays clear: non-yellowing, so the joint looks good long term.

Directions and Handling

• Surfaces should be clean, dry and grease-free. Isopropanol works for most degreasing. Remove any silicone residue from glass before bonding.
• One substrate must let UV light through to the bond line.
• Keep the adhesive out of ambient light until you are ready to cure, and avoid trapping air in the joint.
• Store between 5°C and 25°C (41°F to 77°F), away from room lighting.

Our Shelf Life Options

• Fresh Batch: our newest stock, with the most shelf life remaining.
• Short Shelf Life: 1 to 3 months left before the expiration date. Good value if you will use it soon.
• Recently Expired: past the printed date and sold as-is at a deep discount. Best for testing, prototypes and non-critical work. Run a test bond before relying on it.

For professional and industrial use. Keep away from strong oxidizing materials. Refer to the Safety Data Sheet for handling guidance.