(Essential) MBR Cartridge PU Potting Resin – NSF Certified
Product Description
BZ-809-10 is a high-performance polyurethane potting compound, developed specifically for bonding and sealing both ends of MBR membrane bundles. It offers moderate hardness combined with robust corrosion resistance, and its material formulation holds NSF certification. This compound is widely adopted in water treatment cartridge manufacturing.
Key Product Features
- Two-component polyurethane system, enabling straightforward processing, superior fluidity, and easy penetration during potting.
- Formulation meets ROHS and REACH environmental compliance standards.
- Certified under NSF criteria.
- Cures without creep or thermal stress on hollow fibers.
- Delivers strong, durable adhesion across 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.
2. 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 & Shipping & Storage
Hardener: Typically 5KG/ 10KG / 20KG/ 200KG metal or plastic drums.
Resin: 10KG / 20KG / 200KG metal or plastic drums.
Store and transport as a general chemical product.
Store sealed, protected from light at room temperature. Shelf life varies from 6 to 12 months depending on packaging; please refer to the expiry date on the shipping package.
When temperature drops to 15°C or lower, the hardener or resin should be stored in a warm place or heated before use for potting. Specific heating recommendations depend on the temperature drop; please communicate and consult with us.
