Tropical Hardwoods and Their Impact on Leather Manufacturing

Have you ever found yourself curious about the magical journey that turns rugged animal hides into the soft, supple leather adorning your cherished shoes, bags, and accessories? What if I told you that an intricate process, full of challenges and innovation, unfolds behind the scenes?

In this remarkable dance between nature and craftsmanship, tropical hardwood emerges as the unsung hero, revolutionizing leather manufacturing. Yes, you read that right – Tropical Hardwood. Today, in this blog post, I will delve into the heart of leather crafting, unravel the enigma of tanning, and help you understand the pivotal role played by hardwood in shaping the leather industry.

Chemistry, Heat, and Transformation

Leather, something we often don’t think much about, goes through a fascinating manufacturing process. It involves shifts from acids to alkalis and high to low water temperatures. These changes are really important for the tanning process. And that’s where super durable tropical hardwoods come in – they can handle all of this.

But how does it all work? It’s very interesting. First, the hides get prepared – they remove any dirt and hair to make a clean starting point. Then comes the main part: the tanning process.

During the tanning process, they treat the hides carefully to ensure they stay strong and don’t break down. The primary ingredient in the tanning process is tannic acid or tannins which is extracted from the wood of the Wattle tree or the bark of the Acacia tree. It is what gives the leather its base tan color while also providing preservative qualities. 

The pH levels go up and down, and the temperature changes too. It’s like a dance. The hide soaks in all of these chemicals, slowly turning into soft, tough material that keeps its natural strength.

Now, let’s talk about the unsung hero – the super-durable tropical hardwoods. These special woods are brought from far away places. Species like Oroko, Karri, and Merbau have been used since the early 70s to build wooden tanks and drums used by the leather tanning industry. 

Tropical hardwoods are strong protectors during the tanning process. They hold the hides as everything happens. Because of them, the pH and temperature stay just right, and the hides become great leather that you can use for your favourite shoes and accessories.

Intriguing, isn’t it? All these steps – the hides, the organic chemicals, and the strong hardwoods – come together to make leather – a material that continues to captivate human innovation for centuries.

My Personal Journey into the World of Hardwoods

In the mid-70s, as I began my journey in this fascinating world, my hands dove into the Jarrah and Karri wood from Australia, Merbau from New Guinea, and Iroko from Africa. I discovered that these hardwoods, sourced from diverse corners of the world, were uniquely equipped to stand tall against the challenging conditions of the tanning process. This discovery sparked my inquisitiveness and charted a course that would eventually steer me toward uncovering the wider uses of these and other extraordinary woods.

With my father’s mastery as a chemical engineer in the leather sector guiding me and fueled by a passion for woodworking and an unquenchable thirst for exploration, I embarked on voyages that immersed me in the core of timber operations across Australia, Papua New Guinea, and Brazil. Those were the days when telexes were our lifelines, and fearless curiosity was our compass. As I witnessed the birth of these hardwoods in the heart of nature, I began to understand their true potential.

As my experiences deepened, a profound curiosity began to take root. It wasn’t just about mastering the process but about understanding the harmony between nature’s offerings and human ingenuity. This intrigue led me to delve further, exploring the broader applications of these resilient woods. I pondered the potential for these hardwoods to contribute beyond leather crafting to offer sustainable solutions for a world awakening to the need for eco-conscious practices. This curiosity led me first to the boardwalk and marine construction industry, which led to residential applications, but more about that later.

Sustainability and Resilience: A Promise for the Future

Tropical hardwoods offer durability and align with the imperative of sustainability. In an era marked by environmental consciousness, their ability to withstand the rigours of the tanning process translates into longevity, minimizing waste and supporting a greener future.

As the demand for eco-friendly and sustainable practices grows, the value of super-durable tropical hardwoods becomes increasingly evident. These woods stand as a testament to the potential of leveraging nature’s resources responsibly, ensuring that our practices today don’t compromise the needs of future generations.


Just as tanning requires a harmonious interplay of elements, from chemistry to craftsmanship, the journey of responsible lumber sourcing necessitates a blend of accessibility and ethics. Tropical Forest Products’ dedication to supporting sustainability initiatives, including chain of custody audits and sourcing from forest management areas, aligns seamlessly with the ethos of preserving our environment while delivering excellence. To learn more about our sustainable practices, get in touch!

About the Author

Meet Brian Lotz, General Manager of US Operations, Technical and Environmental Compliance Director for Tropical Forest Products and industry Influencer. With over 40 years of experience in the exotic hardwood business, Brian brings a wealth of knowledge that enhances the company’s commitment to sustainability within the imported and domestic hardwood industry. Brian was responsible for spearheading the 38th FSC Chain of Custody Certification for his company in North America, the Fields to Forests Tropical Reforestation Program and the TFP Legal Lumber “Due Care” Compliance Program. As we explore the impact of super-durable tropical hardwoods on multiple industries, Brian’s insight offers a unique lens, underscoring the harmonious interplay between skillful artisanship, biophilic design and sustainable ethos.

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