StructurePoly alpha olefins (PAO)
CAS No. 151006-60-9
EC No. n/a
Synonyms Hydrogenated polydecene; Poly(1-decene) hydrogenated; Hydrogenateddecenehomopolymer; polymer with 1-decene, hydrogenated

Poly alpha olefins (PAO)

Poly alpha olefins (PAO) are widely known as PAOs. Chemically these are hydrogenated homopolymers of 1-Decene and are categorized as Group IV base oils.

Connect Chemicals does market Poly alpha olefins as a product group under the brand name SinoSyn. Standard viscosities available are 10, 40 and 100 (mm²/s at 100°). Other, lower viscosities, are under development at present (please get in touch with us in case of interest). 


The SinoSyn products are produced using pure alpha olefins. They do show more consistent properties - such as e.g. lower friction and higher thermal stability – resulting in superior performance compared to other base oil groups. Their high viscosity indices do lead to less film thickness reduction at higher temperatures.



  • PAOs are used in many synthetic products such as lubricating oils, hydraulic oils, cooling lubricants, drilling fluids, greases and all kind of other metal working fluids. 
  • The low viscosity PAOs can virtually be found in every modern car engine, acting as a synthetic motor oil.


Shelf Life

Under proper storage conditions, the shelf life is 24 months from date of production.

Health & Safety

Detailed information on the product described can be found in our relevant Health and Safety Information (Material Safety Data Sheet).