Industrial Dust Filter Sealant 5:1 for Collector Cartridges
High-performance, solvent-free two-component polyurethane (PU) dust filter sealant formulated with a precise 5:1 weight ratio (A:B). Specifically engineered for potting and sealing industrial dust collector cartridges and air filter elements. Offers low mixed viscosity, strong bonding force, and stable room-temperature curing—perfectly applied using our Filter Gluing & Dispensing Machines.
Our Industrial Dust Filter Sealant 5:1 is an environmentally friendly, solvent-free, two-component polyurethane (PU) adhesive system engineered specifically for the high-strength sealing, potting, and bonding of industrial dust collector cartridges, pocket filters, and air purification filter elements.
This system consists of a low-viscosity polyether polyol blend (Component A) containing specialized active hydroxyl groups and a highly reactive polymeric isocyanate (Component B). When blended at the precise weight ratio of A:B = 5:1, the compound exhibits excellent fluid properties, pouring smoothly and self-leveling inside the filter end caps. It cures at room temperature to form a robust, impact-resistant elastomeric seal that prevents dust bypass and maintains filter integrity under continuous reverse-pulse cleaning shocks.
Technical Specifications
The factual mechanical parameters, mixing ratio, and curing properties of Industrial Dust Filter Sealant 5:1 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)
Mixed Viscosity
Highly optimized low viscosity for smooth machine pouring
Key Features
Solvent-free, low mixed viscosity, strong bonding force
Application
Sealing and potting industrial dust collector filter elements
Specially formulated to withstand the harsh mechanical forces of industrial dust collection, including continuous high-pressure reverse-pulse jet cleaning, without cracking, chipping, or losing adhesion on the metal frame.
2. Low Mixed Viscosity & Self-Leveling
Component A and Component B feature a highly optimized viscosity profile. When mixed, the liquid flows smoothly into complex end cap molds, thoroughly wetting the pleated polyester or cellulose paper edges without creating air voids, gaps, or bubbles.
3. Exceptional Cross-Material Bonding
Creates a powerful, airtight chemical bond between porous filter media (synthetic non-woven, cellulose, fiberglass) and non-porous end cap substrates, including galvanized steel, aluminum, ABS, and polyurethane frames.
4. Solvent-Free & Eco-Friendly Formula
Contains absolutely no volatile organic solvents, ensuring zero toxic emissions (VOCs) during dispensing, curing, and long-term filter operation in workshop environments, promoting a safe workplace for your operators.
Target Applications
This durable 5:1 polyurethane sealant is widely used for structural potting in:
Industrial Dust Collector Cartridges: Potting and sealing pleated spunbond polyester or cellulose elements into metal or plastic end caps for wood, cement, and metalworking shops.
HVAC Air Filters: Frame-bonding and side-sealing for commercial pocket and panel filters.
Heavy-Duty Intake Filters: End cap bonding for air compressors, gas turbines, and heavy mining machinery intake housings.
Why Partner with Fupei?
Machinery-Optimized Material Matching: As both a machinery and raw material manufacturer, we test and calibrate our Dust Filter Sealant 5:1 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 is chemically balanced to provide high structural hardness along with excellent impact resistance. This ensures that when the industrial dust collector undergoes intense reverse-pulse air cleaning, the cured polyurethane end cap does not crack or separate from the pleated media, maintaining a 100% leak-proof seal.
A: No. Our Industrial Dust Filter Sealant 5:1 is a room-temperature curing system. It cures stably and quickly under standard factory floor conditions (around 25°C). While external heating is not required, mild heating (such as 40°C–50°C) 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.
