Cable-Grade Water-Blocking Polymer Powder - Technical Specifications
Product Overview
A specialized superabsorbent polymer powder engineered for superior moisture protection in cable systems, featuring:
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Instant water-triggered gel formation
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Long-term structural stability
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Broad material compatibility
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Thermal/chemical resistance
Key Performance Parameters
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Property
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Specification
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Base Material
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Crosslinked sodium polyacrylate (CAS 9003-04-7)
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Swelling Rate
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<30 seconds activation
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Expansion Ratio
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100-300x original volume
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Thermal Range
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-40°C to 90°C operational stability
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Gel Strength
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Maintains integrity at 0.5MPa pressure
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Particle Size
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50-300μm (standard)
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Technical Advantages
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Rapid Response: Immediate swelling upon water contact
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Persistent Protection: Gel remains stable for cable lifespan
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Material Adaptability: Compatible with XLPE, PVC, PE insulation
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Process Friendly: Easy integration during cable manufacturing
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Quality Assurance: Consistent batch-to-batch performance
Application Benefits
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Extends cable service life by preventing water degradation
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Reduces maintenance costs and failure rates
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Suitable for harsh environments (underground/submarine)
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Complies with international cable standards
Product Safety
Storage & Handling
Frequently Asked Questions
Q: How does swelling capacity vary with water salinity?
A: Standard grade maintains >80% performance in brackish water (≤3% salinity)
Q: Can it be used in high-voltage cable applications?
A: Yes, specially formulated for HV cable water-blocking tapes
Q: What's the typical application dosage?
A: 0.5-3% by weight depending on cable design requirements
Q: Does it affect cable electrical properties?
A: No impact on dielectric strength or insulation resistance
Q: Are custom particle sizes available?
A: Yes, tailored distributions for specific manufacturing processes
Product Tags:
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Cable-Grade Water-Blocking Polymer Powder – Structural Integrity Formula Images
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