Polyurethane Plastic and Rubbers Explained

Depending on the polyurethane casting material selected, you can pull parts out of your mold every as quickly as 10 minutes, and some systems may require an overnight cure. Much of this depends on the geometry of the part you are making or the type of material needed to create the part. This process is used in most manufacturing industries. It’s a very cost-effective way to get product feedback, prove out your design, and make design changes before expensive production tooling is made.

BJB sells a wide range of Thermosetting polyurethanes from flexible (Shore A) to rigid (Shore D) and everything in between. We supply Technical Data Sheets (TDS) for all our products, which include the materials mechanical and handling properties. This way, you can select the correct product for your particular application. Most of BJB’s materials are offered in their natural colors which can range depending on the formulation. Some are white, translucent, gray, clear amber, and clear. Most of these products can be pigmented using our 6800 series pigments (Opaque) or dyed using our 7100 dyes (Translucent). We recommend that you stay under 2 percent dye or pigment to the total weight of the A and B components. The more Dye or pigment you use, the more likely you will adversely affect the materials mechanical properties. Keep in mind, the natural base-color of the casting material will affect how well you will be able to achieve the final color you are after. A strong white base will tend to shift colors lighter, and an amber base color material would be very difficult to achieve a bright white finished color. We also sell pre-pigmented black versions of some of our products; a minimum purchase might be required. We are always happy to provide cured samples of our casting materials for client evaluation and help with selection.

The Product Material Charts found on our website make it easy and quick to compare our product options to one another and this makes the selection process much easier.