NSF-Certified PU Potting Resin for MBR Cartridge Sealing 809-10
BZ-809-10 is a high-performance polyurethane potting compound, specifically formulated for bonding and sealing both ends of MBR membrane bundles. It delivers moderate hardness with strong corrosion resistance, and its material formulation is NSF-certified. Widely adopted in water treatment cartridge manufacturing.
Key Product Features
- Easy Processing: Two-component PU system with excellent fluidity for smooth penetration during potting.
- Globally Compliant: Formulation meets RoHS and REACH environmental standards.
- NSF-Approved: Certified under NSF criteria for water treatment applications.
- Fiber-Safe Curing: Cures without creep or thermal stress on hollow fibers.
- Strong Substrate Bonding: Delivers durable, reliable adhesion across various substrates.
Technical Parameters
|
Parameters |
Hardener BZ-809-10 A |
Resin BZ-809-10 B |
|
|
Before curing |
Appearance |
Brown liquid |
Milky white liquid |
|
Viscosity(mPa·s.25℃) |
50±30 |
2500±1000 |
|
|
Initial mixed viscosity(mPa·s.25℃) |
550±200 |
||
|
Density(g/cm³.25℃) |
1.21±0.05 |
1.06±0.05 |
|
|
Mixing&Curing
|
Mix ratio(by weight) |
A:B=45:100 |
|
|
Pot life 130±30g(min.25℃) |
18±5 min |
||
|
Curing condition |
Room temperature curing |
||
|
Surface drying time 30g(H.25℃) |
1.5H |
||
|
Curing time 30g(H.25℃) |
3±1H |
||
|
Curing time 30g(heated) |
60℃heated ≤30 min |
||
|
After curing
|
Color |
Milky white |
|
|
Hardness (Shore D) |
60±15 |
||
|
Temperature resistance(℃) |
-40~85℃ |
||
|
Water absorption(24H) |
≤0.5% |
||
|
Thermal conductivity(W/m.k) |
≤0.3 |
||
|
Surface resistivity (Ω/sq) |
≥1.0×1013 |
||
|
Volume resistivity (Ω.cm) |
≥1.0×1013 |
||
|
Tensile strength(MPa) |
≥10 |
||
|
Elongation at break(%) |
≥30% |
||
|
Dielectric constant(at 50Hz) |
≥3 |
||
|
Breakdown voltage(kV/mm) |
≥18 |
||
|
Tensile Shear Strength (MPa) Al-Al |
≥6 |
||
Product Applications
- Column membranes: Strong adhesion to ABS casings, with superior corrosion and water resistance, ensuring durable bonding and long-term stability for membrane materials and filaments.
- Water purification filter elements: High bonding strength, eco-friendly formulation, and NSF-certified compliance.
Directions for Use
Pre-potting Preparation: Calibrate scales, prepare potting tools, cleaning tools, check machine settings, check vacuum pump force, etc.
Product Pre-treatment: Place product on a level surface or fixture. Remove dust, clean, degrease, and dry if necessary.
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.
Mixing & Stirring: Manual operation requires thorough stirring or using electric stirrers to ensure homogeneous mixing. Machine potting requires sufficient stirring speed, adjust as needed.
Uniform Potting: Manual operation should be done in small, multiple batches to ensure uniformity. Machine potting should follow the programmed path for quantitative dispensing.
Inspection or Secondary Potting: After potting, visually inspect as needed. Perform touch-up, bubble removal, or secondary potting if required.
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.
Final Product Confirmation: Perform visual inspection and performance testing as required by the customer.
Packing
Hardener: Typically 5KG/ 10KG / 20KG/ 200KG metal or plastic drums.
Resin: 10KG / 20KG / 200KG metal or plastic drums.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.