Uralac® Ultra 

The powder of possibilities.

Wooden garden furniture with coating that lasts for up to 20 years

When Dutch designer Jan Willem Henssen wanted to breathe new life into an old idea, he turned to the DSM R&D department. The result is a range of wooden garden furniture that lasts for up to 20 years without any maintenance whatsoever. A range that looks great and requires no cleaning, scraping or recoating. And best of all, it is extremely friendly to the environment. “The idea of making furniture from discarded wooden crates and pallets was first explored by the famous designer Gerrit Rietveld in the 1930s,” says Jan Willem. “Since then, various other designers have experimented with the idea, but in 2010 I decided it was time to really push this eco-friendly, cost-effective idea to its full potential. Because I like wood, and I don’t like waste.”

Trials with linseed oil

Jan Willem began designing prototype models that tested various strategies in stability, aesthetics and ease-of-construction, keeping in mind the "pallet look and feel". “To continue the theme of eco-friendliness, we finished the prototypes with linseed oil – a natural, renewable material, that requires no primer or cross-linking chemicals” says Jan Willem. “Initial results were good, but we later found that linseed oil on unseasoned pallet wood becomes unstable and gets sticky in strong sunshine. Not really what you want in garden furniture.” 

Success with powder coatings 

“Amazingly, the day after we discovered that linseed oil was not possible, I stumbled across an article on the Internet about DSM’s work in powder coating resins – and the latest breakthrough in relatively low curing temperatures. This low-temperature curing meant that it could be applied to my pallet-wood furniture. What’s more, the performance characteristics of this powder coating – in terms of scratch resistance, humidity resistance and chemical resistance – meant that it would significantly prolong the life of the furniture.  So I immediately contacted the relevant departments and started tests with Jos Verlaak, DSM’s New Business Development Manager”

“We both instinctively knew that our newly developed single-coating of powder resin for heat-sensitive substrates was the perfect finish for Jan Willem’s chairs,” says Jos. “Both the chairs and the resins have very strong eco credentials. But we needed to identify the best coating and curing process for unseasoned pallet wood, and we spent many hours in our special coating laboratory testing various application pressures, coating thickness, and curing temperatures and times. Eventually, we found the best parameters to ensure excellent surface appearance and very high scratch and humidity resistance.”

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