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Wood Plastic Composites

Stronger, more durable Wood Plastic Composites (WPC)

Composites are gaining popularity in the building and construction industry, and it’s easy to see why. They provide better weather resistance, require less maintenance and can be formulated to be more sustainable than traditional all-wood materials.

Dow’s diverse portfolio of additives for WPC can help you meet demands for design flexibility, durability, sustainability and energy efficiency.

Substantial strength improvement

Plastic additives for polymer and composite materials can help build stronger construction products. Thermal and foam cell stabilizers for PVC deck boards impart melt strength and prevent degradation. Coupler aids enable more durable composites that retain their integrity through freeze/thaw cycles.

These additives help achieve the energy-efficient processing of tougher, more weatherable material for decks, fences, rails, boardwalks, docks and more.

Increased moisture resistance

Wood plastic composites made with ethylene copolymers can deliver increased moisture resistance at significantly lower usage levels than conventional maleic anhydride coupling agents. At higher levels, they provide superior performance for dramatic reduction in water absorption.

Silicone Enhanced Polymer Systems (SEPS)

Our latest additive technology, Silicone Enhanced Polymer Systems (SEPS) by Dow, can improve your processes with increased production efficiencies, lower reject rates and result in stronger, higher performing boards. Our newly launched AMPLIFY™ Si PE 1000 can enhance your wood plastic composite manufacturing, providing sustainability options with improved physical properties to WPC boards.

Let’s talk about Dow’s additives for wood plastic composites and how they could work for your building and construction applications.


Reducing Your Carbon Footprint with AMPLIFY™ Si PE 1000 Polymer System
With AMPLIFY™ Si PE 1000, you can use a greater proportion of recyclable plastics in manufacturing while maintaining – or even improving – the finished product.