Polyurethane Release Agents

Release Agents for Polyurethane   Request a Sample

McLube release agents for polyurethane (PU) are designed to prevent buildup and provide an excellent surface finish. We offer cost-effective mold release agents for urethane and PU molding with varying attributes to suit individual needs as well as anti-foul coatings for PU foam insulation spray guns and parts.   Explore below to learn more information or contact us today for free samples and process assistance.

Benefits of McLube Release Agents for Polyurethane

McLube release agents for polyurethane and urethane are designed to provide reliable release characteristics without building up on the mold surface. Reduced buildup will cut down on cleaning time and frequency as well as reduce rejection rates due to poor surface finish or failed release. McLube offers release agents for the following surface finishes:


  • Glossy
  • Matte
  • Satin


McLube Formulation Chemists will also work with customers to create custom formulations for unique surface finish requests. 


A major concern for all molders is material contamination by the releasing agent. Our release coatings are chemically inert and bond to the mold or tooling surface for superior, contamination-free release characteristics without transfer. Our proprietary formulas resist transfer and never buildup on parts and tooling because they are non-oily, non-dusting, and dry clean on the substrate. Pin-holing is also a concern for plastics and polyurethane molders. McLube release agents have been perfected over the last fifty years to adequately wet the desired surface to form an even, durable coating that will not cause pin-holing, knit lines, cracks, voids, or surface irregularities in your polyurethane.


Continue reading for more information or contact us for product data and free samples.

Release Options for Polyurethane

  • Water or solvent-based options
  • Concentrated or ready-to-use
  • Semi-permanent or sacrificial coatings
  • Non-flammable options available
  • VOC-options available
  • Aerosol

Release Agents for Polyurethane Spray Foam and Polyurea Applicators 

The same proprietary release technology McLube developed for polyurethane molding keeps PU foam and polyurea overspray from sticking to safety equipment and applicators. McLube release agents will prevent foam and polyurea from building up on whatever surface they are applied and can be easily wiped off at the end of the day. Our release agents also dry clear for effective protection of face masks and visors. Our PU foam release agents are available in bulk or aerosol form at an affordable price even at low order quantity. McLube also offers industrial cleaning products that facilitate PU foam and polyurea removal from any surface. Contact us for free samples and product data.



  • Thermoplastic polyurethane (TPU)
  • Rigid and flexible polyurethane foam to include jounce bumpers and insulation
  • Non-isocyanate based polyurethanes (NIPUs) and IPUs
  • Methylene diphenyl diisocyanate
  • Self-skinning urethanes, integral skin, PU spray skins
  • Carpeting, seating, carpet underlay

Casting, RIM, extrusion, injection molding (hydraulic, mechanical, electric, pneumatic), slush molding, mirror-finish stainless steel tooling, dual durometer, PU filter production, encapsulation, spray applicator gun

1G, 5-gallon pail, 55-gallon drum, 275-gallon tote, Aerosol (6oz, 10oz, 12oz, 16oz)

Ready-to-use aerosol can, wipe-on / brushing, or atomizing spray gun

Contact McLube for specific product information, pricing, and safety data sheets.

External resources: about polyurethane