Pour Point Depressant

Pour Point Depressant

      Pour point depressant (PPD) is critical additives that improve low-temperature fluidity by modifying wax crystal structures. Key functions include:

Included Products

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Wind Farms in Wales

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Wind Farms in Wales

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Wind Farms in Wales

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Wind Farms in Wales

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Wind Farms in Wales

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Wind Farms in Wales

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Wind Farms in Wales

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Classification:

Product

Application

Fumarate Ester PPD (T818A, T818C, T818H)

Multi-grade engine oils, gear oils, hydraulic fluids, industrial lubricants, Arctic expedition equipment oils.

Polymethacrylate PPD (T819/T848)

 

NEV Cold Starts: Maintains fluidity of battery coolants at -40°C (Tesla TSL-015 certification).

Wind Turbine Gearboxes: Ensures operation in -45°C extreme cold (GL certification).

Aircraft Hydraulic Fluids: Guarantees stability at high-altitude low temperatures (MIL-PRF-5606H standard).

Biodiesel: Prevents crystallization of fatty acid methyl esters (EN 14214 certification).

Parameter

Specification Range

Test Method

Pour Point Reduction (°C)

≥25

GB/T 3535

Cold Filter Plugging Point (°C)

≤-30

SH/T 0248

Low-Temperature Kinematic Viscosity (-35°C, cP)

≤15,000

ASTM D5293

Wax Crystal Inhibition Rate (%)

≥85

ISO 3016

Golden Ratio Formula for PPD Dosage:
PPD dosage (%) = (Base oil wax content % × 0.2) + (Target pour point difference °C × 0.05)

Operational Guidelines:

Addition Temperature: Must exceed base oil cloud point +10°C.

Timing: Add at least 15 minutes after detergent addition.

Mixing Prohibition: Avoid direct mixing with high-alkaline additives.

Storage: Protect from light and moisture (humidity <40% RH).