Product Name
- PERMABOND UV6231 UV glue with high clarity and excellent moisture and humidity resistance, thicker gel ultra-slow flow
Brief Description
PERMABOND UV6231 is a single-part, fast-curing, UV-curable adhesive known for its exceptional optical clarity and resistance to yellowing. It offers excellent resistance to moisture and humidity, making it suitable for demanding environmental conditions. Its thicker, gel-like consistency provides an ultra-slow flow, allowing for precise application and gap filling without sagging.
Popular Applications & Uses
- Bonding glass and crystal for a high-quality finish, including glass furniture, display cases, and decorative panels.- Bathroom-type applications such as bathroom scales and shower doors, due to its excellent moisture and humidity resistance.- Outdoor applications requiring good resistance to weathering.- Architectural bonding for items like glass balconies and staircases.- Bonding clear plastics such as acrylic and polycarbonate in display panels, optical lenses, and consumer electronics.- Assembly of medical devices, including catheters, endoscopes, syringes, diagnostic tools, and respiratory support devices.- Automotive assembly for bonding mirrors, headlights, interior trims, and sensor housings.- Bonding and coating of circuit boards, touchscreens, and sensors in electronics.- General bonding of metal to glass or other substrates.
Industries that Commonly Use It
- Aerospace/Defense- Automotive Service/Repair- Construction/ Building Services- Electrical Services or Products- Fabrication- Furniture- General Manufacturing- LED/Electronics- Marine- Medical Device/ Prosthetics- Metal Fabrication- Plastic Fabrication- Sign & Display- Transportation/ Specialty Vehicle
Special and Unique Features
- **Cure on Demand:** Cures rapidly upon exposure to UV light, allowing for precise component alignment before bonding.- **Optically Clear:** Maintains excellent optical clarity and resistance to yellowing, ideal for aesthetic applications.- **Excellent Environmental Resistance:** Provides strong resistance to moisture, humidity, and weathering, suitable for outdoor and challenging environments.- **Thicker Gel, Ultra-Slow Flow:** Its high viscosity (5000-8000 mPa.s) prevents dripping and allows for controlled application, gap filling, and vertical surface bonding.- **100% Solids, No Solvents:** Environmentally friendly and safe for various applications.- **Fast Curing with Low-Power Lamps:** Achieves rapid cure times even with low-intensity UV lamps, increasing production efficiency.
Key Properties
- **Chemical Composition:** Methacrylate ester.- **Appearance:** Colourless, clear.- **Viscosity @ 25°C (20 rpm):** 5000-8000 mPa.s (cP).- **Specific Gravity:** 1.1.- **Cure Wavelength:** 365-400 nm.- **Fixture Time (Low power 4mW/cm² lamp):** Approximately 5 seconds.- **Shore D Hardness:** 45-50.- **Refractive Index:** 1.471.- **Elongation:** 180%.- **Temperature Resistance:** -55°C to +120°C (-67°F to +250°F) for continuous operation, with brief periods up to +120°C.- **Maximum Gap Fill:** 1.5 mm (0.06 in).
Surface Compatibility
- Excellent adhesion to glass.- Excellent adhesion to crystal.- Excellent adhesion to metal (e.g., steel, aluminum, copper and its alloys after light abrasion).- Bonds a wide variety of plastics, including clear plastics like acrylic and polycarbonate.- Surfaces should be clean, dry, and grease-free for optimal bonding.
Known backups / known substitutes
- Permabond UV620 (General purpose, optically clear)- Permabond UV625 (Non-drip for larger gaps and vertical applications)- Permabond UV632 (Low viscosity, plastic bonding, excellent adhesion to acrylic)- Permabond UV640 (Medium viscosity, plastic bonding, excellent adhesion to polycarbonate)- Permabond UV6160 (Optically clear, even in high-stress joints)- Permabond UV7141 (UV and anaerobic curing for shadow areas, glass, mirrors, metal)- Dymax 429 Lightweld UV Cure Adhesive (for glass bonding)- Dymax 425 UV Light Cure Adhesive (for architectural bonding)- Dymax 3099 UV Light Cure Adhesive (for plastic bonding)- Loctite 34931 (for glass and plastic bonding)
Comparison Note
PERMABOND UV6231 distinguishes itself among UV-curable adhesives by combining superior optical clarity and non-yellowing properties with exceptional resistance to moisture and humidity. Its unique thicker gel, ultra-slow flow characteristic provides significant advantages for applications requiring precise placement, gap filling, and non-sagging performance, offering more control during assembly compared to lower viscosity UV glues. This makes it particularly well-suited for high-quality finishes and durable bonds in challenging environments where both aesthetics and environmental resistance are critical.
