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Wood fiber composites / panel pressing

Addressing the Challenges of the Wood Composite and Panel Pressing Industry

Chem-Trend understands the challenges that working with wood fiber composites and panel pressing can bring to an operation. Whether you are operating a continuous press system, a day-light press, or another type of wood molding or finishing operation, there are many variables that affect the quality of your end product and the efficiency of your operation. Often, those variables also interrelate with – and are impacted by – the mold release agent or plate/platten sealer that is used during the process. We have developed a comprehensive range of mold release agents that can handle the challenges found in wood fiber pressing applications. Most of the products we have developed for this industry are water-based and all have been tailored to work within a process that is demanding both in terms of chemical and mechanical attack of the pressing surface.

Panel pressing and the manufacturer of wood fiber based materials is not always a simple process. Wood composite materials are utilized in a wide variety of applications, but primarily for commercial and residential building materials. In the world of wood fiber composites and panel pressing there is little or no raw material waste. All pieces of trees, the major raw material in all final products in the industry, have some use and value in the process. After a log is de-barked it can be converted into a very diverse set of forms by chipping and/or grinding it into different sizes/consistencies, or combining it with some form of resin and then pressing/forming. The end result of the process is a wood composite that is designed for specific applications, such as:

Furniture Making Applications

  • Low density fiberboard (LDF)
  • Medium density fiberboard (MDF)
  • High density fiberboard (HDF)
  • Particle board (PB)
  • Plywood

Construction Applications

  • Oriented strand board (OSB)
  • Oriented wafer board (OWB)
  • Medium density fiberboard (MDF)
  • High density fiberboard (HDF)
  • Structural plywood
  • Strand lumber (all types)
  • “I” joists and beams

Increasingly tighter controls on formaldehyde emissions will increasingly impact the wood fiber composite/panel pressing industry. It has already led some in the industry to move toward the use of binder resins that have made the role of the mold release agent significantly more important. A good example of this is pMDI, which may prove more difficult to release than “traditional” binders and has been known to increase the rate of build-up on pressing surfaces. pMDI systems can be rather difficult to process, as the composite bound with it can be quite sticky and show a distinct tendency to bring about build-up on the pressing surface. However, pMDI binder systems do provide some attractive benefits to the wood composite processor, such as faster processing times and good moisture resistance, along with the important benefit of zero formaldehyde emissions.

Chem-Trend has formulated mold release agents to get to the heart of the issue of pMDI resin systems. The actual causes of sticking/build-up have been intensively studied by Chem-Trend chemists, which allowed us to develop products that eliminate the fundamental problem. With our mold release agents, build-up cannot gain a foot-hold on the pressing surface, ensuring that the manufacturing plant can remain in operation for extended periods of time. Since the release property of these products leads to a pressed article surface that is very smooth and consistent in texture, surface sanding – where necessary – is minimized.

Leveraging 50 Years of Experience in Helping Industries Produce

Through our more than fifty years of experience and product development in multiple molding industries we have learned a lot about addressing production challenges. We realize that no two wood composite applications are alike. Regional differences in fiber richness and type, combined with binder and manufacturing requirements, make each application unique. That is why we work with our customers, on their production floor, to find the right product for their situation. By working closely with our customers we have been able to develop release solutions that resolve masking and build-up issues and improve output – regardless of the manufacturing nuances of the facility.

The wood composite/panel pressing industry tends to be one that makes huge volumes of products on an almost continuous basis, and Chem-Trend has formulated its products to work in that type of demanding environment. Our products are easy to work with and remain highly stable under processing conditions of both heat and cold. We have developed our products to be as reliable as the company that they come from, because our customer’s production processes simply cannot be interrupted once running.

Contact us to learn more about how we can help you improve process efficiency.