Custom Urethane Molding
Urethane Production Capability
Ro-Lab can bond urethane part to a wide variety of metal sub-surfaces such as aluminum, brass, and steel. Urethane is ideal for making a block mold. Block molds have the advantage that they are quick to make and usually do not require a rigid mother mold like latex does.
Ro-Lab has the press capacity for small, high-volume production as well as production of large-scale parts:
5-250 ton capacity
Platen sizes up to 24-inch by 24-inch
Oven capacities to 2,880 cubic feet (20-ft. by 12-ft. by 12-ft.)
Part sizes: less than 1 oz. to 500+ lbs.
Metered Mixing: up to 40 lbs./min.
Urethane Molding Processes
- Urethane Compression Molding: Liquid polyurethane is poured into a mold and cured in a compression press with capacities up to 250 tons. This technique is most suitable for components that must maintain dimensional accuracy and repeatability.
- Dimensional precision and repeatability
- Capable of being very flexible or very rigid
- Very durable and wear-resistant
- Urethane Low Pressure Injection Molding: Injection of liquid polyurethane into a closed mold under low pressure, in a process ideal for projects in which a component size, component shape or tooling configuration would make compression molding impractical.
- Ideal for unusual sizes or shapes
- High precision and intricate parts
- Finish is minimized
- Open Cast Urethane Molding: The pouring of liquid polyurethane into an open mold, which is then cured in an oven or on a heated table. Usable on part sizes from less than an ounce to more than 500 lbs. Excellent for projects where conventional tooling would be expensive or impractical.
- An economical alternative to conventional tooling
- Low cost tooling: a mold capable of handling high pressure is not required, soft tooling may be made out of urethane or silicone
- Suitable for smaller production runs
- High performance product
- RIM (Reaction Injection Molding): Reaction Injection Molding is the injection of polyols and isocyanates into a closed mold, triggering a chemical reaction that causes the material to expand and form the finished product.
- Effective in forming extremely large products with very light weights
- Able to improve or eliminate secondary operations
- Eliminates sink marks
- Workable for flexible or rigid products in foams or solids
- Delivers reliable control of components with varying wall thicknesses