Guide to Choosing the Best Polyurethane Material
Plan Tech for over 30 years has produced millions of parts for numerous applications. Frequently we will be presented with a problem for a custom application or better performance out of OEM parts. Plan Tech can match OEM parts to print or from a sample part out of high-quality urethane from world leading chemical companies.
There are two main types of urethane resins polyester and polyether. For the most part polyether material is incredibly tough and a go-to choice for most applications. When abuse or wear items are presented to Plan Tech we will learn exactly what the application is and find the best material we feel suited for excellent product performance and service life.
Plan Tech exclusives use high quality cured agents like 4,4′-Methylenebis(2-
Property | Best performance | Least Appropriate |
Abrasion Resistance: Sliding | Polyester with 5% Armgorlide 95A-75D | Low Cost Polyether |
Abrasion Resistance: Heavy Load Sliding | Polyester with 2% Moly oil 95A-75D | Low-Cost Polyether |
Low Compression Set | TDI- Both ester and ethers perform well when plasticised down more than 20%. | MDI |
High Compression Set | TDI- Both ester and ethers perform well with natural prepolymer. | MDI |
Heat Aging | Polyester | Low-Cost Polyether |
Bushing | Polyether 95A-75D w\ 3% moly oil or armorglide | Polyester |
Heat Buildup | Polyether | Polyester |
High-Temperature Properties | TDI | MDI |
Hydrolysis (Reaction with Water) Resistance | Polyether | Polyester |
Low-Temperature Properties | Polyether | TDI Polyester |
Oil Resistance | Polyester | Polyether |
High Rebound | Polyether 80A – 95A | Polyester |
Low Rebound | Polyester 30A-70A | Polyester |
Tear Strength | Polyester 95A | Low-Cost Polyether |
Tensile (Tension) Strength | Polyester 95A | Polyether |