Release Agents for Wood Composites

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McLube offers a full line of cost-effective, dilutable release agents and platen sealers ideal for a variety of wood composites operations. Regional variations in natural wood and tenacious adhesive blends create unique challenges for all engineered wood manufacturers. McLube offers non-staining release agents and platen sealers targeted towards your unique challenges for truly superior results. Due to recent governmental restrictions on the use of formaldehyde-based adhesives, many wood composite manufacturers have switched to pMDI-based adhesives. While these adhesives perform better than their formaldehyde-based counterparts, they are more expensive and notoriously tacky substances. Relying on decades of experience with pMDIs in the urethane molding industry, McLube has created multiple pMDI release agents to compliment the evolving wood composites industry. We also offer release technology for traditional phenol-formaldehyde and urea-formaldehyde adhesives. Contact us today to learn more about how McLube can help optimize your engineered wood operation.

Release agents Platen Sealers

Benefits of McLube

 

Mold Release Agents

 

for Wood Composites

Reduced buildup on molds and tooling

Improved efficiency of your molding operation

No transfer for a lighter board color

Superior release from press plates and belts

Promote smooth surface finish on OSB

Non-foaming, non-dusting, non-oily

Release agents for pMDIs available with enhanced slip

No buildup on platen surfaces or tooling

McLube Options for Engineered Wood Press Systems

Supported Materials

Binders

pMDI, PF, UF, MF, & poly vinyl acetate

Wood

All hard and soft woods, bamboo, vegetable fibers, coconut coir, other cellulosic products

Supported Processes

Continuous press systems, daylight / multi-opening presses, compression molding

Formaldehyde Regulations and pMDIs

While formaldehyde is an essential ingredient of cellular metabolism in mammals, studies have linked prolonged inhalation of formaldehyde gases to cancer. Engineered wood composites have been found to emit potentially harmful amounts of formaldehyde gas in two ways: unreacted free formaldehyde and chemical decomposition of resin adhesives. When exorbitant amounts of formaldehyde are added to a process, the excess will not have any additive to bond with and may seep from the wood product over time. Cheap urea-formaldehyde (UF) adhesives are largely responsible for degraded resin emissions. Moisture degrades the weak UF molecules, resulting in potentially harmful formaldehyde emissions. McLube offers release agents and platen sealers designed for those manufacturers who use reduced-formaldehyde UF and melamine-formaldehyde adhesives.

 

Many oriented strand board (SB) and plywood manufacturers use phenol-formaldehyde (PF) because phenol is a much more effective additive. Phenol forms a water-resistant bond with formaldehyde that will not degrade in moist environments. PF resins have not been found to pose significant health risks due to formaldehyde emissions. While PF is an excellent adhesive, the engineered wood industry has started to shift toward polyurethane binders like pMDI to achieve even greater water-resistance, strength, and process efficiency. pMDIs are also used extensively in the production of rigid polyurethane foams and insulators for refrigeration.

 

pMDIs outperform other resin adhesives, but they are notoriously difficult to release and cause buildup on tooling surfaces. McLube has developed a full line of release agents and platen sealers for pMDI adhesives based on decades  of experience working with castable urethane and polyurethane foam manufacturers. Our release agents for pMDI will reliably release these tenacious adhesives and dramatically reduce buildup on platens and other wood press substrates. Contact us for more information about our release agents for pMDI.

Availability

Fully dilutable, heat-cure or air-cure options available in 1-G, 5-gallon pails, 55-gallon drums, 275-gallon totes

Contact us for specific product information, safety data, and free samples.

Industry news and scholarly articles can be found at EngineeredWood.org