T630V is a polymethacrylate (PMA) viscosity index improver. It is suitable for blending hydraulic oil (especially low-temperature low condensation hydraulic oil), gear oil, shock absorber oil, transmission oil, and other oil products. With excellent shear stability, it can effectively increase the viscosity index and improve the low-temperature performance of oil products.
Item | Typical Value | Test Method |
Appearance | Transparent Viscous Liquid | Visual |
Kinematic Viscosity (100ºC), mm 2/s | 1350 | GB/T 265 |
Color Number | 0.5 | GB/T 6540 |
Density (20°C), kg/m 3 | 917 | SH/T 0604 |
Flash Point (COC), °C | 180 | GB/T 3536 |
Test Data
Item | Base Oil 150N | +10% T630V |
Kinematic Viscosity (100ºC), mm 2/s | 5.66 | 11.75 |
Kinematic Viscosity (40ºC), mm 2/s | 32.37 | 56.31 |
Viscosity Index | 115 | 210 |
Pour Point (°C) | -26 | -43 |
Thickening Ability | -- | 6.08 |
Shear Stability Index SSI | KRL 20h: 48 Diesel nozzle 30 cycles: 3.9 |
1. Packed in 200L metal drum, IBC tank, or made to order.
2. Long-term storage temperature should not exceed 45ºC.
3. Handle & blending temperature should not exceed 65ºC.
4. Not dangerous chemicals, store in a dry & clean warehouse.



The raw materials were inspected before entering the factory to ensure that the requirements were met.
During the production process, sampling inspection, real-time monitoring, and correction.
After the production is finished, each batch of goods shall be sampled and tested to make sure the goods are qualified before leaving the factory.



Polymethacrylate, (PMA) was first developed in the 1950s as a synthetic rubber substitute. In the 1970s, researchers began investigating the use of PMAs as VIIs in lubricants. They found that PMAs had excellent shear stability, good low-temperature performance, and oxidation resistance.
Methacrylicacid is esterified with higher carbon alcohol under acidic conditions to form methacrylate, and the generated water is continuously absorbed by sulfuric acid to make the reaction continue. Remove the unreacted substances and by-products from the crude methacrylate, after refining, carry out free radical polymerization under the trigger of benzoyl peroxide or azobisisobutyronitrile, etc., and also use dodecanethiol to control the molecular weight (in During the polymerization process, a certain amount of diluent oil should be added), the reaction formula is:
May I have a sample of Polymethacrylate PMA Viscosity Index Improver?
We understand the importance of product testing, and we strive to make the sample delivery process as straightforward and reliable as possible.
The PMA price goes up and down with the market, please contact us for the current PMA VII price.
May I get the MSDS and COA of PMA Viscosity Improver?
Yes, Please contact Chorus's sales engineer for the latest COA and MSDS of PMA Viscosity Index Improver.