ROHS High Transparent PU Potting Compound Adhesive Rapid Curing 5518-3-X
High-Clarity Yellow-Resistant PU Potting with Fast Cure
Product Description
BZ-5518-3-X-1 is a highly transparent, anti-yellowing polyurethane potting compound designed for decorative wall coverings and printed graphics. It meets ROHS, REACH, and California 65 standards. Upon curing, it forms a crystal-clear, three-dimensional surface with balanced hardness—staying flexible and crack-free even in low-temperature conditions. The material maintains its original color for three years without yellowing, delivering lasting visual appeal and protective performance.
Key Product Features
- Heat-accelerated curing for improved production efficiency.
- Compliant with ROHS, REACH, and California Proposition 65 environmental regulations.
- Two-component system with simple processing and excellent flow characteristics.
- Outstanding weather resistance and UV stability for long-term durability.
Technical Parameters
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Parameters |
Hardener BZ-5518-X-3-1 A |
Resin BZ-5518-X-3-1 B |
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Before curing |
Appearance |
Clear liquid |
Clear liquid |
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Viscosity(mPa·s.25℃) |
5-55 |
200-480 |
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Initial mixed viscosity(mPa·s.25℃) |
120-280 |
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Density(g/cm³.25℃) |
1.05±0.05 |
1.01±0.05 |
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Mixing&Curing
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Mix ratio(by weight) |
A:B=1:3 |
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Pot life 130±30g(min.25℃) |
9-17min |
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Curing condition |
Room temperature curing |
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Surface drying time 30g(min.25℃) |
15-30min |
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Curing time 30g(min.25℃) |
30-40min |
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Curing time 30g(Heated) |
60℃ heated ≤12min |
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After curing
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Hardness (Shore A) |
62±10 |
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Temperature resistance(℃) |
-40~85℃ |
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Water absorption(24H) |
≤1.0% |
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Surface resistivity (Ω/sq) |
≥1.0×1012 |
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Volume resistivity (Ω.cm) |
≥1.0×1012 |
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Tensile strength(MPa) |
≤2 |
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Elongation at break(%) |
≥40% |
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Dielectric constant(at 50Hz) |
≥8 |
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Breakdown voltage(kV/mm)
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≥14 |
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Product Applications
1. Decorative wallpaper: High transparency and accelerated curing properties, achieving over 300% higher production efficiency than epoxy resin; soft and long-lasting smooth surface without peeling after curing.
2. Printing materials: same as above;
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 20KG/ 200KG metal or plastic drums.
Resin: Typically 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.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.