JDVII-6351 Polymethacrylate (PMA) VII
Product Introduction
JDVII-6351 is a solution of polymethacrylate in highly refined mineral oil. It is a viscosity index improver with high shear stability specially designed for multi-grade engine oils, and also has a condensation reducing effect.It is suitable for the blending and production of multi-grade internal combustion engine oil, especially the blending of new oil products under the trend of low viscosity.
Product Performance
- Narrow molecular weight distribution, excellent shear stability
- Efficient thickening and viscosity index improvement capabilities
- Effectively inhibits wax crystallization, and is suitable for different types of base oils.
Physical Properties
Item |
Typical Value |
Test Method |
Appearance |
Light yellow transparent viscous liquid |
Visual |
Kinematic Viscosity(100ºC) ,mm2/s |
2530 |
GB/T265 |
Flash Point ,ºC |
160 |
GB/T3536 |
Thickening ability ,mm2/s |
8.5 |
SH/T0622 |
P-SSI ,% |
15 |
SH/T 0505 |
Density(20ºC),Kg/m3 |
930 |
GB/T1884 |
Color |
0.5 |
GB/T6540 |
Noted:Add 0.5% to HVI150 base oil (freezing point -14±1 ºC), and the freezing point reduction value is the degree of pour point.
The difference of the k. viscosity at 100°C between HVI150 base oi and adding 10% of viscosity index agent to HVI150 base oil.
Recommended Dosage
1-10%, depending on the actual application.
Packing And Precautions
Please refer to SH/T0164 for transportation, storage and handling.
Net weight: 170 Kg/drum, packed in 200 liter metal drum. Non-flammable, non-explosive, non-corrosive. Best Blending temperature: 50-60ºC.Storage temperature below 60ºC, avoid repeated heating,

Company Profile
Tianjin J&D Technology Co., Ltd
J&D Lubricant was established in 2016 and has been specializing in the field of lubricant additives and synthetic base oils and has rich experience in this field. As a well-known and professional lubricant additives manufacturer and supplier in China, we offer a wide range of additives for a variety of lubricants, such as engine oils, gear oils, hydraulic oils, ATF, marine oils and turbine oils, as well as other industrial oils, specialty oils and greases.
We have built up a wealth of experience and kept stable long-term relationships with many large oil companies in the world, especially in the US, European and Japanese markets, winning a good reputation from our customers.
Our Laboratory
The blending production and quality inspection of J&DLubricnat has been awarded the title of Advanced Scientific Laboratory in China. We also participate annually in the Global Additives Cross-Data Comparison Test organized by the American Society for Testing and Materials (ASTM) to ensure the reliability of our results.
Exhibition View
We participate in a variety of lubricant-related exhibitions around the world every year to expand our international presence and to communicate deeply with our customers, with whom we have made deep friendships!
Our Team

FAQ
Q1: What's your MOQ
A: our MOQ generally starts from 1kg
Q2: Can I get some samples?
A: Of course, You need to pay a certain fee, but if your order is large, or if you are willing to cooperate with us for a long time, we can provide you with free samples, you only need to pay the freight
Q3: Is there any discount?
A: If the order quantity is relatively large or there is a good and long-term trade cooperation with our company, we will provide a more favorable discount.
Q4. What is your terms of delivery?
A: EXW, FOB, CFR, CIF, DDU.
Q5. How about your delivery time?
A: Generally, it will take 30 to 60 days after receiving your advance payment. The specific delivery time depends on the items and quantity of your order.
Q6. Do you test all your goods before delivery?
A: Yes, we will do 100% test before delivery.
Q7: How do you ensure our business long-term and good relationship?
A:1. We will keep good quality and competitive price to ensure our customers' benefit ;
2. We respect each customer as our friend and we sincerely do business and make friends with them no matter where they come from.