High Hardness PU Polyurethane Two Component Adhesive 12MPa BZ-6100-5C

BZ-6100-5C: High-Hardness Polyurethane Adhesive for Structural Applications                                                

BZ-6100-5C is a two-component polyurethane adhesive engineered for structural bonding applications, offering high hardness, excellent adhesion, and superior mechanical strength in demanding environments. With a higher mixed viscosity and Shore D hardness, it provides enhanced load-bearing capacity and dimensional stability for heavy-duty construction materials. This adhesive complies with RoHS standards and provides good temperature resistance and weatherability, making it suitable for both indoor and outdoor structural applications.

Key Product Features

1. High Hardness & Strength: Shore D hardness of 75±10 and ≥12 MPa tensile strength ensure exceptional load-bearing capacity and dimensional stability in structural applications, even under heavy mechanical stress.
2. Balanced Curing Speed: Achieves surface drying in 2.5±1 hours and full curing in 4±1 hours at 25°C, providing sufficient working time for precise assembly while enabling efficient production cycles.
3. Adjustable Pot Life: 20±8 minutes at 25°C (adjustable) allows flexibility in working time, accommodating both manual and automated processes in structural manufacturing.
4. Excellent Substrate Compatibility: Bonds effectively to aluminum honeycomb panels, sandwich panels, and heavy-duty composite materials, as well as steel and concrete substrates, eliminating the need for surface treatments in most cases.
5. Low Water Absorption: ≤0.5% absorption in 24 hours ensures reliable performance in humid or outdoor environments, preventing delamination and maintaining bond integrity over time.

Technical Parameters 

Product Applications

1. Heavy-Duty Modular Construction: Bonds high-strength aluminum honeycomb panels and sandwich panels in prefabricated modular buildings for industrial and infrastructure projects, ensuring structural integrity and load-bearing capacity.
2. Aerospace & Defense Components: Assembles lightweight composite panels in aircraft interiors and defense equipment, providing structural strength and resistance to extreme temperature and pressure conditions.
3. Marine & Offshore Structures: Bonds composite panels and honeycomb cores in shipbuilding and offshore platforms, ensuring durability and resistance to saltwater corrosion and harsh marine environments.
4. Industrial Equipment Manufacturing: Seals and bonds heavy-duty components in construction machinery and mining equipment, providing structural integrity and resistance to vibration and impact in high-stress operations.
5. Bridge & Infrastructure Repair: Repairs and reinforces concrete and steel structures in bridges and roadways, providing high-strength bonding and resistance to environmental factors in critical infrastructure applications.

Directions for Use

1. Pre-potting Preparation: Calibrate scales, prepare potting tools, cleaning tools, check machine settings, check vacuum pump force, etc. 
2. Product Pre-treatment: Place product on a level surface or fixture. Remove dust, clean, degrease, and dry if necessary.
3. Accurate Proportioning: Manual operation requires precise mixing according to the specified ratio and recording. Machine potting requires calibrated ratios and first-article confirmation is recommended.
4. Mixing & Stirring: Manual operation requires thorough stirring or using electric stirrers to ensure homogeneous mixing. Machine potting requires sufficient stirring speed, adjust as needed.
5. Uniform Potting: Manual operation should be done in small, multiple batches to ensure uniformity. Machine potting should follow the programmed path for quantitative dispensing.
6. Inspection or Secondary Potting: After potting, visually inspect as needed. Perform touch-up, bubble removal, or secondary potting if required.
7. Curing: Allow the potted and inspected products to cure at room temperature or with heat assistance (recommended 60°C if needed), according to product and process requirements.
8. Final Product Confirmation: Perform visual inspection and performance testing as required by the customer.

Packaging & Shelf Life

1. Packaging: 25kg plastic drums, 200kg steel drums, and 1000kg IBC totes for both Component A (brown) and Component B (beige).
2. Shelf Life: 3–6 months from production date when stored sealed, protected from light at room temperature.
3. Opened Container: Use within 3 days for optimal performance; stir thoroughly before use if stored longer.