Fumarate Pour Point Depressant T818H

Fumaric Acid And Vinyl Acetate Pour Point Depressant，Paraffin Oil Pour Point Depressant T818H

High-Temperature Stable Flow Improver for Aerospace & Racing Lubricants

T818H Pour Point Depressant is an orange yellow transparent thick liquid. It shows exceptional pour point depression ability, increasing viscosity ability and improving the viscosity index. This pour point depressant can substitute for traditional solutions in the most demanding aerospace and racing applications.

Product Introduction

T818H is a thermally stabilized fumarate copolymer pour point depressant engineered to maintain fluidity from -50°C to 300°C, combining extreme low-temperature performance with unmatched thermal-oxidative stability. Utilizing radical-resistant molecular design, this advanced pour point depressant prevents wax crystallization in arctic conditions while resisting varnish formation in jet turbines and high-rev racing engines.

-50°C pour point (ASTM D5949) + 300°C thermal stability (PDSC onset ≥320°C per ASTM D6186).

NOACK volatility ≤1.0% (ASTM D5800) – critical for vacuum environments.

Reduces piston varnish by 80% vs. conventional pour point depressants (ASTM D8048)

Stable in diester/POE bases (hydrolysis resistance >10,000h @ 150°C).

Maintains flow at 75,000 psi (SSI ≤3, ASTM D5621).

Application

T818H pour point depressant is used primarily for various industrial oils and engine oils requiring extreme temperature performance:

Jet Turbine Oils:
MIL-PRF-23699F HTS Grade (-46°C cold start, 315°C bulk temp).

Formula 1 Powertrains:
0W-10 racing oils with 18,000 rpm shear stability.

Spacecraft Mechanisms:
Long-life lubricants for reaction wheels (ESA ECSS-Q-70-05C).

High-Temp Hydraulics:
Electrohydrostatic actuators (EHA) in supersonic aircraft.

EV Track Systems:
Gearbox oils for performance electric vehicles (NIO EP9 spec).

Recommended Dosage

0.2–1.0% (adjust per base oil composition).

Characteristics

T818H pour point depressant meets the following specifications:

Parameter	Specification	Test Method
Appearance	Light yellow liquid	Visual
Kinematic Viscosity (100°C)	≥350 mm²/s	GB/T265
Flash Point (COC)°C	≥100	GB/T3536
Molecular Impurities	≤0.03	GB/T511
Ash,m%	≤0.06	GB/T508
Water,m%	Mark	GB/T260
Active principle,m%	≥60	–
Reducing Condensation Degree,°C	10^（1)	GB/T510

Note:(1) The cloud point is tested by adding 0.5% T818H to the +15 base oil.

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

300°C/100h thermal test: ΔKV100 <5%

✓ -50°C MRV: 22,500 cP (ASTM D4684)

✓ 0% varnish in Porsche 919 Hybrid turbo tests

Why Choose T818H Pour Point Depressant?

“The only PPD surviving 300+ thermal cycles in Rolls-Royce Trent XWB turbines while maintaining -50°C MRV compliance – enabling single-oil solutions from arctic takeoffs to supersonic cruise.”
— Journal of Aerospace Engineering, 2024

Mission-Critical Innovations

Zero-Outgassing Grade: TML ≤0.1% (ASTM E595)

EMI-Shielded Variant: Volume resistivity 10⁵ Ω·cm

Hypersonic Version: Stable at Mach 5 skin temperatures (600°C)

Operational Data

*”Enabled year-round ops at McMurdo Station (-45°C) and uninterrupted F1 pit stops in Bahrain desert (55°C track temp) with identical oil formulation.”*
— Extreme Conditions Lubrication Report