ECO PU Adhesive Y61B for Industrial Filter Bonding
Environmentally friendly, solvent-free two-component polyurethane (PU) adhesive formulated with a precise 5:1 weight ratio (A:B). Features low mixing viscosity, strong bonding force, and excellent resistance to high and low temperatures. Ideal for bonding hydraulic oil filter elements, oil-water separators, and industrial dust filters—perfectly cast using our Filter Gluing & Dispensing Machines.
Our ECO PU Adhesive Y61B is an environmentally friendly, solvent-free, two-component polyurethane (PU) adhesive system engineered for high-performance bonding of hydraulic oil filter elements, oil-water separators, various industrial special-shaped filters, and dust filter products.
Formulated with a precise weight ratio of A:B = 5:1, this eco-friendly PU system consists of a low-viscosity polyether polyol blend (Component A) and a high-reactivity isocyanate prepolymer (Component B). It cures at room temperature to form a tough, durable bond with excellent temperature resistance, ensuring reliable structural integrity and leakage prevention under extreme high-pressure hydraulic flows and variable thermal conditions.
Technical Specifications
The factual mechanical parameters, mixing ratio, and curing properties of ECO PU Adhesive Y61B are detailed below:
Technical Parameters
Factual Specifications
Material Composition
Two-component Solvent-free Polyurethane (PU)
Component A (Polyol)
Low-viscosity polyether polyol blend
Component B (Isocyanate)
High-purity isocyanate prepolymers
Mixing Weight Ratio
A:B = 5:1
Curing Temperature
Room Temperature (Fast curing without external heat)
Specifically designed to withstand wide temperature fluctuations. The cured polyurethane elastomer maintains high mechanical elasticity and strong adhesion under both extremely low and high temperatures, preventing joint cracking in harsh outdoor or engine compartment environments.
2. Low Mixing Viscosity & Easy Handling
The optimized low viscosity of the mixed compound allows it to flow smoothly, self-level evenly inside the metal end cap mold, and completely wet the paper edges. This ensures thorough penetration without leaving micro-gaps, dry spots, or air bubbles.
3. High Bonding Strength & Structural Stability
Provides an exceptionally strong mechanical bond across diverse substrates. It permanently secures filtration media (cellulose paper, fiberglass, synthetic non-woven) to steel, aluminum, and plastic end caps, preventing media detachment under heavy oil or air flow.
4. Environmentally Friendly & Solvent-Free
Formulated completely without volatile organic solvents (VOCs). It is odorless during application, ensuring a safe, compliant, and healthy workplace for your factory operators.
Target Applications
This versatile 5:1 eco polyurethane adhesive is widely used for structural sealing in:
Hydraulic Oil Filters: Bonding pleated cellulose or fiberglass media to metal cores and end caps in high-pressure oil systems.
Oil-Water Separators: Tight, leak-proof sealing for automotive, marine, and industrial fuel-water separators.
Industrial Special-Shaped Filters: Custom potting and bonding for unique, complex, or heavy-duty filter elements.
Dust Collector Filters: End cap bonding for industrial dust cartridges and air pollution control systems.
Why Partner with Fupei?
Machinery-Optimized Material Matching: As both a machinery and raw material manufacturer, we test and calibrate our ECO PU Adhesive Y61B directly on our own Filter Gluing & Dispensing Machines to guarantee smooth fluid delivery and zero nozzle dripping.
Tested and Certified Consistency: Every batch of Component A and B is tested in our quality control lab for viscosity, density, and curing speed, ensuring seamless machine operation without nozzle clogging.
Secure Global Supply & Packaging: We offer flexible packaging (such as 25kg drums, 200kg barrels, or IBC totes) to suit your workshop’s storage and production scale, with secure global shipping and SDS certificates.
Frequently Asked Questions
A: The 5:1 weight ratio of Component A to Component B is chemically optimized to balance fast curing with high flexibility. This specific polyurethane formula provides excellent structural resilience and impact resistance, making it ideal for hydraulic filters and fuel-water separators that experience constant pressure surges.
A: No. ECO PU Adhesive Y61B is designed for convenient room-temperature curing. It cures stably and quickly under standard factory floor conditions (around 25°C). While external heating is not required, mild heating can be used to accelerate the initial gel time in cold winter environments.
A: Yes, absolutely. With its low mixed viscosity and excellent self-leveling properties, this adhesive is perfectly compatible with automated 2-part dosing systems. For high-volume automated filter production, we highly recommend using our specialized Filter Gluing & Dispensing Machines for precise volumetric control.
