Product Name
Hardman Double Bubble Purple/Beige-Label A85 04024 - Crystal Clear Flexible Water-Resistant Urethane Adhesive
Brief Description
This product is a two-component, crystal clear, flexible, and water-resistant urethane adhesive system. It is renowned for its high peel strength and resilience, curing rapidly to form a durable bond. Designed for a wide array of bonding, sealing, potting, and casting applications, it offers excellent resistance to UV light and extreme temperatures, preventing yellowing or degradation over time.
Popular Applications & Uses
- Jewelry making and repair.
- Sealing and repair of flexible surfaces.
- Repair of construction and off-road tires, flexible conveyor belts, printing press rollers, rubberized fabrics, shoes, ski boots, and other sports equipment.
- Bonding refrigeration and AC equipment.
- Potting and casting applications requiring resistance to UV light.
- Structural bonding in automotive and transportation industries, including vehicle manufacturing and component assembly.
- Bonding insulation materials, flooring, and various building components in construction.
- Sealing joints, gaps, and seams in building structures and industrial equipment for watertight and airtight protection.
Industries that Commonly Use It
- Aerospace/Defense: Used in aircraft and rail applications for structural bonding and assembly.
- Artist, Artisan: Ideal for jewelry making and repair due to its crystal clear finish and flexibility.
- Automotive Service/Repair: Employed in automotive/transportation for attaching trim, panels, structural components, and repairing tires and other flexible parts.
- Cabinet & Woodworking: Valued for strong, moisture-resistant bonds in furniture and wooden product manufacturing.
- Cladding: Used in construction for bonding cladding materials.
- Commercial Door: Utilized in PVC/composite door manufacturing.
- Construction/ Building Services: Common for bonding insulation, flooring, building components, brick slips, and sealing joints and gaps.
- Electrical Services or Products: Applied in electronics and electrical engineering for bonding components and electrical insulation, including refrigeration and AC equipment.
- Fabrication (Metal and Plastic): Excellent for multi-material assemblies involving metals, plastics, and composites.
- Flooring Installer or Manufacturer: Used for bonding flooring, including glued-down hardwood floors and artificial turf installation.
- Food & Beverage Company or Distributor: Applied in the packaging industry for multi-layer packaging requiring strong, durable, and water/oil-resistant bonds.
- Furniture: Essential for strong, moisture-resistant bonds in furniture production.
- General Manufacturing: A versatile adhesive for various industrial bonding and assembly requirements.
- Government & Military: Polyurethane adhesives are widely used in military applications.
- LED/Electronics: Used for bonding and insulating electronic devices and components.
- Marine: Employed in boat manufacturing and for marine adhesive applications.
- Mold Making/ Casting: Suitable for potting and casting applications.
- Packaging Services or Contractor: Used for producing multi-layer packaging for various products.
- Petroleum Industry, Products or Services: Can be used for sealing fuel tanks and in mining equipment.
- Prosumer: Popular for DIY projects and repairs of items like shoes, sports equipment, and general household fixes.
- PVC Trimboard: Used in PVC manufacturing.
- Synthetic Turf: For bonding artificial grass to various substrates.
- Tarp, Fabric, Awning Manufacturing: Effective for bonding rubberized fabrics.
- Transportation/ Specialty Vehicle: Critical for structural bonding in automotive, rail, industrial vehicles, and RV/camper sealing.
Special and Unique Features
- Crystal Clear Appearance: Maintains optical clarity, making it suitable for applications where aesthetics are important.
- Extremely Flexible: Offers high flexibility with a medium hardness (Shore A-85), allowing it to accommodate movement and vibration without cracking.
- High UV Resistance: Formulated to resist breakdown and yellowing from exposure to UV light, ensuring long-term clarity and performance outdoors.
- Water-Resistant: Provides excellent resistance to water, making it ideal for exterior and immersed projects, and is practically impervious to water during curing.
- Rapid Cure Time: Features a quick 5-minute work time, 15-minute set time, and 45-minute handling strength for efficient repairs and assembly.
- Two-Component System: Ensures a reliable and controlled curing process, leading to consistent bond strength.
- Excellent Adhesion: Forms strong bonds to a wide range of similar and dissimilar substrates.
- Temperature Resilience: Withstands extreme temperatures, including sub-zero applications, and harsh environments.
- Low Shrinkage: Cures with very low shrinkage, maintaining dimensional stability.
Key Properties
- Type: Two-component Urethane Adhesive/Sealant (Polyurethane).
- Color: Crystal Clear.
- Flexibility: High / Extremely Flexible.
- Hardness: Medium Hardness, Shore A-85.
- Work Time: Approximately 5 minutes.
- Set Time: Approximately 15 minutes.
- Handling Strength: Achieved in 45 to 90 minutes.
- Water Resistance: Excellent, highly water-resistant, and impervious during cure.
- UV Resistance: High, prevents fading or yellowing.
- Peel Strength: High.
- Resilience: High.
- Temperature Resistance: Good for low-temperature/sub-zero applications; generally up to 120°C, with some formulations reaching 140°C.
- Chemical Resistance: Good resistance to solvents when cured; resists oil and chemicals.
- Physical Form (Uncured): Heavy Syrup.
Surface Compatibility
This adhesive exhibits excellent adhesion to a broad spectrum of materials, including:
- Metals: Aluminum, steel, stainless steel, copper, brass.
- Plastics: ABS, PVC, polycarbonate, engineering plastics, composites, polystyrene, nylon.
- Rubber: Natural and synthetic rubber, rubberized fabrics.
- Glass.
- Leather.
- Wood: Hardwoods, softwoods, plywood, fiberboard.
- Masonry: Concrete, stone, stucco.
- Ceramics.
- Composites.
- Foam: Polyurethane foam, polystyrene foam.
- Fiberglass.
Known backups / known substitutes
- Epoxy Adhesives: While offering strong bonds, epoxies typically lack the high flexibility and specific UV resistance of this urethane. Hardman also offers various epoxy Double Bubble products.
- Silicone Sealants: Provide flexibility and water resistance but generally have lower bond strength and different curing characteristics, and may not be paintable.
- Other Polyurethane Adhesives/Sealants: A wide range of polyurethane formulations exists, including one-component systems, offering varying hardnesses, cure times, and specific properties for different applications.
- Acrylic Sealants: Easier to apply and paintable, but often less resistant to harsh weather conditions and UV radiation compared to polyurethane for exterior use.
Comparison Note
The Hardman Double Bubble A85 04024 distinguishes itself from many general-purpose adhesives through its exceptional combination of crystal clarity, high flexibility (Shore A-85), rapid cure, and superior resistance to both water and UV light. Unlike many epoxies, which offer high strength but often lack flexibility and UV stability, this urethane maintains elasticity and clarity in challenging environments. While silicones provide flexibility and water resistance, they typically offer lower adhesive strength and have different material compatibility profiles. This product is specifically engineered for applications demanding a strong, flexible, clear, and durable bond, effectively bridging the performance gap between more rigid epoxies and softer silicones.
