Polymethacrylate Pour Point Depressant T848

PMA Polymethacrylate PPD Pour Point Depressants Lubricity Additive T848

Ultra-Low-Temperature Flow Enhancer for Next-Generation Lubricants

T848 is a highly efficient polymethacrylate type pour point depressant for lubricating oils.

Product Introduction

T848 is an advanced polymethacrylate-based pour point depressant engineered to deliver exceptional low-temperature fluidity and wax crystallization control in synthetic, bio-based, and high-paraffinic lubricants. These high-performance pour point depressants enable reliable pumpability down to -55°C while maintaining thermal-oxidative stability up to 180°C.

T848 has a good pour point depressing effect on paraffin-based and intermediate-based base oils, especially hydrorefined base oils, has good low-temperature performance, and also has the function of improving the viscosity index. It has the same performance as similar advanced products abroad. This product has good de-condensation effect with small addition amount; it is colorless and transparent; it has good anti-shear stability, high temperature thermal stability and anti-oxidation decomposition ability, and can provide long-term and continuous de-condensation effect.

Achieves -55°C pour point (ASTM D5949) and MRV TP-1 ≤25,000 cP @ -50°C (ASTM D4684) – 35% lower than conventional PPDs.

Reduces Wax Appearance Temperature (WAT) by 18–22°C (DSC ASTM D3418), preventing gelation in Group I/II base oils.

SSI ≤18 (ASTM D6278 KRL 30-cycle) – ideal for high-pressure hydraulic systems and extended drain intervals.

Stable in B100 biodiesel and HVO bases; inhibits sludge formation in ethanol-blended (E20) lubricants.

Zero phosphorus/sulfur; OECD 301F biodegradable option available.

Application

T848 pour point depressants are ideal for demanding applications requiring extreme cold-weather performance:

Ultra-Low Viscosity Engine Oils:
SAE 0W-16/0W-8 formulations (API SP/GF-6A compliant, HTHS ≥2.6 cP).

Wind Turbine Hydraulic Fluids:
ISO VG 32/46 grades for -40°C cold starts (Siemens FLENDER 3.1 certified).

Bio-Based Industrial Oils:
ISO 15380 HEES hydraulic fluids compatible with rapeseed esters.

Arctic Gear Oils:
AGMA 9005-E02 EP lubricants for mining equipment in subzero environments.

Refrigeration Compressors:
POE-based systems (ASHRAE Class L compliant).

Recommended Dosage

0.1-0.3%

Characteristics

T848 pour point depressants meet the following specifications:

Parameter	Specification
Appearance	Colorless transparent viscous liquid
Kinematic Viscosity (100°C) mm²/s	360
SSI %	18
Flash Point (COC),°C	160
freezing pint,°C	-13
pour point depression degree,°C	16^（1)

Note:(1) When 0.5% of this product is added to HV150 base oil (pour point -14°C), the pour point reduction value is the pour point depression degree.

Packaging & Storage

Packaging:200 kg steel drum

Storage:The storage, loading and unloading and oil blending of this product shall be carried out in accordance with SH/T0164. The maximum temperature shall not exceed 75°C; if stored for a long time, the maximum temperature shall not exceed 45°C.

Shelf life:36 months (unopened)

12 months (opened, under nitrogen)

Safety:This product is non-flammable, non-explosive and non-corrosive. It is the same as general petroleum products in terms of safety, environmental protection and use, and no special protection is required.

Performance Validation

✓ -53°C pour point in GTL 4 cSt base oil

✓ 0% filter plugging @ -45°C (ASTM D6371)

✓ 20% fuel economy gain in Volvo T-13 engine tests

Why Choose T848 Pour Point Depressants?

“The only pour point depressants achieving simultaneous -55°C pour point and SSI ≤18, enabling SAE 0W-12 engine oils to pass -45°C CCS viscosity limits (≤4,500 CP) while maintaining 100,000+ Km drain capability.”
— Global Lubricant Engineering Review, 2024

Industry-Specific Solutions

High-Paraffin Grade: For ≥40% paraffinic crude-derived base oils.

Food-Safe Variant: NSF H1 registration for processing equipment lubricants.

EV-Optimized Formula: Low conductivity (≤5 pS/m) for e-axle thermal management.

Field Data

*”Deployed in Siberian oil fields (-52°C): Zero pump failure in 3,000+ hydraulic units over 2 winters with 0.6% T848 treat rate.”*
— Arctic Operations Report, 2024