HDS-9 SeaShield Salt-Resistance AdditiveNPT-HDS-9
A salt-resistance additive for seawater and high-salinity groundwater, shielding polymers and bentonite from salt degradation to keep slurry performance stable.
Product Overview
One-liner: For high-salinity and seawater ground, A salt-resistance additive for seawater and high-salinity groundwater, shielding polymers and bentonite from salt degradation to keep slurry performance stable.
HDS-9 (SeaShield) serves coastal and sea-crossing projects by forming a protective environment around polymer chains, blocking chloride attack on viscosity and wall protection. Verified on coastal projects, slurries compounded with PAM-S/PAM-P hold viscosity and fluid loss steady when made with 35‰ seawater.
35‰ salt resistance
Performance holds up in slurries made with 35‰ seawater.
Anti-degradation
Blocks chloride attack on polymer chains, keeping viscosity stable.
Easy blending
Compounds with PAM-S / PAM-P and bentonite in the same tank, no line changes.
Applicable Strata / Scenarios
| Strata type | Typical scenario | Recommended ratio | Expected effect |
|---|---|---|---|
| Saline sand | Coastal piles | 0.3%–0.5% dosage | Stable performance |
| Seawater ground | Sea-crossing shield | 0.5%–0.8% dosage | Resists Cl⁻ degradation |
| Saline soil | Pipe jacking / tunnels | 0.3%–0.5% dosage | Stable wall |
| High-TDS water | On-site make-up | By water quality | Higher yield |
Technical Data Sheet
Quantified core indices for product selection and tender comparison; a test report ships with every batch.
| Test item | Specification | Test method |
|---|---|---|
| Appearance | White to pale yellow powder | Visual |
| Active content | ≥ 95.0% | Oven drying |
| pH (1% solution) | 8.0–10.0 | pH meter |
| Dissolution time | ≤ 10 min | Stirring observation |
| Salt tolerance | ≥ 35‰ | Simulated seawater test |
| Recommended dosage | 0.3%–0.8% | Mix trial |
How to Use / Mix Design
| Step | Key points | Reference dosage |
|---|---|---|
| Make-up | Dissolve in fresh water first, then add the main material | 0.3%–0.8% |
| Dose | Use the upper dosage range at higher salinity | By water salinity |
| Compound | Blend with PAM-S / PAM-P in the same tank | — |
| Test | Check viscosity and fluid loss each shift | Once per shift |
Related Solutions
Related Cases
South · Industrial plantsHot-humid, saline-groundwater piles in South China: 72 h stable
A coastal plant foundation in South China hit 35‰ saline groundwater and hot, humid weather. The slurry flocculated out within 4 hours, forcing three slurry changes per shift with heavy idle time.
Project scaleCoastal industrial plant piles in 35‰ saline groundwater and hot, humid conditions
Overseas · Port worksSeawater-ground slurry flocculation: 28% less bentonite
An overseas port project mixed slurry with seawater at about 32‰. Conventional mud flocculated out in the salt and could not form a film on the wall; bentonite consumption was high and remote resupply pushed costs up.
Project scaleOverseas port piles mixed with seawater at about 32‰ salinity
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