| Résumé : |
The author discusses new formulation for semi-transparent wood stains that aims to give superior exterior durability.
More restrictive regulatory requirements along with applicators' preference for low odour, safe to handle products, are continuing to drive the adoption of waterborne formulations as opposed to solventborne.
The wood coatings sector is no exception, where performance criteria, such as exterior durability, early water resistance and hardness development are key, whatever the formulation base.
Recent developments in acrylic technology have helped to address increasing demand for more environmentally responsible formulations, with waterborne solutions enabling minimal emissions of Volatile Organic Compounds (VOCs) and supporting APEO-free coatings.
However, with tough exposure demands in an exterior environment, acrylic-based wood stains must be capable of withstanding peeling and flaking, phenomena that result from degradation at the wood coating interface.
New developments at Dow, which is increasingly working with 100% acrylics, are designed to address these challenges and deliver against appearance criteria, water resistance and durability demands. |
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New directions in wood directions in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 207, N° 4635 (10/2017)
