(Cruical)MBR Filter Cartridge PU Potting Compound With NSF Certification
Product Description
BZ-809-10 is a high-performance polyurethane potting compound, primarily designed for bonding and securing both ends of MBR membranes. It features moderate hardness and corrosion resistance, with materials certified by NSF. This compound is widely used in water treatment filter elements.
Key Product Features
- Two-component polyurethane, offering convenient process operation, excellent flowability, and easy process penetration.
- Product complies with ROHS and REACH environmental-friendly requirements.
- NSF certified
- No creeping or thermal damage to hollow fiber after potting.
- Excellent adhesion
Technical Parameters
|
Parameters
|
Hardener
BZ-809-10 A
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Resin
BZ-809-10 B
|
|
Before curing
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Appearance
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Brown liquid
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Milky white liquid
|
|
Viscosity(mPa·s.25℃)
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50±30
|
2500±1000
|
|
Initial mixed viscosity(mPa·s.25℃)
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550±200
|
|
Density(g/cm³.25℃)
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1.21±0.05
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1.06±0.05
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|
Mixing&Curing
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Mix ratio(by weight)
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A:B=45:100
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|
Pot life 130±30g(min.25℃)
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18±5 min
|
|
Curing condition
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Room temperature curing
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|
Surface drying time 30g(H.25℃)
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1.5H
|
|
Curing time 30g(H.25℃)
|
3±1H
|
|
Curing time 30g(heated)
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60℃heated ≤30 min
|
|
After curing
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Color
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Milky white
|
|
Hardness (Shore D)
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60±15
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|
Temperature resistance(℃)
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-40~85℃
|
|
Water absorption(24H)
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≤0.5%
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|
Thermal conductivity(W/m.k)
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≤0.3
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|
Surface resistivity (Ω/sq)
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≥1.0×1013
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|
Volume resistivity (Ω.cm)
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≥1.0×1013
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|
Tensile strength(MPa)
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≥10
|
|
Elongation at break(%)
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≥30%
|
|
Dielectric constant(at 50Hz)
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≥3
|
|
Breakdown voltage(kV/mm)
|
≥18
|
|
Tensile Shear Strength (MPa) Al-Al
|
≥6
|
Product Applications
- Column membranes: These exhibit excellent adhesion to ABS casings, with outstanding corrosion and water resistance, ensuring long-term stability in bonding and securing membrane materials or various membrane filaments.
- Water purification filter elements: featuring strong adhesion, eco-friendly materials, 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.
