Polyester Engineering Property Data

MatWeb has product data on about 6000 different grades of thermoplastic and thermoset polyester - PBT, PCT, PET, polytrimethylene terephthalate, polyester thermoplastic elastomers (TPEs), thermoset alkyds, polyester-based fiberglass, and thermoset SMCs and BMCs.  This page will help you to navigate through MatWeb to find the information that you need.

• If you would like to scan the polyester entries in MatWeb, then the MatWeb Material Category Page is a good place to start.  You can select 'Polyester' from under either the thermoplastic or thermoset polymer headings, or specific polyester types such as 'Polyethylene Terephthalate (PET)', and you will be presented with a list of descriptive names.  Polyester-based thermoplastic elastomers (TPEs) or polyurethanes are categorized separately.  Many users start by viewing MatWeb's Overviews - 'generic' polymer entries at the top of the results set that give typical values and ranges that cut across the various manufacturers' polyester product lines.

  You may also select from the drop-down lists of Plastic Manufacturers/Compounders or Polyester Trade Names available from MatWeb.

• If you need to narrow down the list of results to a polyester product with certain performance criteria, then MatWeb's Advanced Search or Property Search Page is a good place to start.  You can select 'Polyester' from the list of category choices under thermoplastic or thermoset headings (or be even more restrictive and select only PBT) along with the appropriate property choices.  For example, if you have an application that demands a flame retarded, anti-static thermoplastic polyester grade, you can enter a minimum UL94 Flammability rating of V-2 and a maximum surface resistance of 10⁸ ohms in your search criteria.

  This same strategy can be used to find fiber-reinforced thermoplastic polyester composites.  You can again select 'polyester' from the list of thermoplastics in the category box and specify a minimum flexural modulus of 9 GPa, for example.  This example returns a few hundred polyester grades; generally only grades with at least 30% glass or carbon fiber reinforcement are stiff enough to meet this flexural modulus requirement.  You can go one step further and eliminate the glass fiber reinforced grades by stipulating a maximum density of 1.45 g/cc.  Now a more manageable number of carbon fiber reinforced polyester grades are returned - you can then review each of the complete property information datasheets, including properties such as tensile strength or dielectric constant.

• Product Names from Polyester Manufacturers whose Products are included in MatWeb.
  If you want data about a specific polyester product, you can enter its trade name or manufacturer in the Search box at the top of any MatWeb page (see example below):