This is how finished leather is made in the first place. Pigments, binders and protective coatings are applied to the hide during manufacturing. Professional restoration isn't introducing a foreign concept to the leather — it's rebuilding a finish that has worn away.

There is a marketing claim in the leather industry that you may have heard:“Your leather is smothered in plastic.”

It sounds alarming. It is also an oversimplification of how finished leather has been manufactured for decades.

“Plastic” is a very generic term. Most protected and pigmented leathers use a coating system containing binders, often polyurethane and/or acrylic based, that hold pigment in place and create a flexible, durable surface. Without a binder, pigment would essentially be a loose color and would quickly rub or wear away.

So the real question isn't whether there are polymers in a leather finish. The question is how that finish was engineered, how it has aged, and how it should be properly restored.

An easy comparison is the finish on your automobile.

A vehicle doesn't simply get sprayed with color and leave the factory. There are multiple layers designed to provide color, appearance, adhesion, and protection. The clear coat provides an additional sacrificial layer between the environment and the color underneath.

Many finished leathers work on a similar principle.

Depending on the type of leather and the manufacturer's finishing process, there may be adhesion layers, base color, secondary colors or effects, and a protective topcoat.

That topcoat matters.

It helps protect the leather and its color from abrasion, body oils, perspiration, spills, clothing dyes, UV exposure, and everyday use.

As that protective surface wears down, the underlying finish becomes increasingly vulnerable. Once you're wearing directly into the color coat, deterioration can accelerate.

That's also one reason routine maintenance and using the appropriate leather conditioner and protectant can be valuable. You're trying to maintain that first line of defense rather than waiting until significant damage has already occurred.

Is Unfinished Leather Better?

Not necessarily. It's simply different.

Unfinished and minimally finished leathers can be beautiful. They can have an incredibly natural appearance and hand feel.

But there is a tradeoff.

The less protection you put between the leather and its environment, the more susceptible the leather can become to spills, staining, body oils, moisture, fading, and other contamination.

Think about automotive leather. It needs a substantial protective finish because it is expected to survive years of people sliding across seats, perspiration, denim, food, drinks, sunlight, heat, cold, and constant abrasion.

Calling a protective leather finish “plastic” doesn't make that finish inherently bad. Protection is often exactly what the leather was designed to have.

Professional leather restoration isn't about taking beautiful natural leather and simply covering it with dye paint system.

In many cases, we're repeating and rebuilding the same basic finishing principles that were used when the leather was originally manufactured.

The difference is that we're working with an existing piece of leather that may have years or even decades of wear, contamination, body oils, previous conditioners, silicone products, scratches, cracking, and deteriorated coatings.

That is why preparation can be just as important as the color itself.

You can have excellent coatings and still get poor results if the leather isn't properly prepared.

Depending on the condition of the leather, preparation can include:

• Thorough cleaning
• Removal of contaminants and incompatible products
• Proper surface preparation
• Oil extraction where necessary
• Selective sanding of damaged or deteriorated areas
• Repairing scratches, cracks, or other physical damage
• Preparing the existing finish for proper adhesion

Oil extraction can be especially important. Areas such as headrests and armrests can accumulate years of body oils. Simply coating over that contamination can create adhesion problems and premature finish failure.

But preparation also requires judgment.

Leather should not automatically be aggressively sanded just because it is being refinished.

If an existing finish is sound and properly adhered, unnecessarily removing it can actually create additional damage and more restoration work. You may remove perfectly usable factory finish, disturb the grain, expose vulnerable leather underneath, and create a larger area that now has to be rebuilt.

The goal isn't to remove everything.

The goal is to remove what needs to be removed, preserve what should be preserved, and create the proper foundation for the new finish.

That's one of the major differences between simply applying color and actually understanding leather restoration.

That's a catchy marketing phrase, but it doesn't accurately describe the complexity of modern leather finishing.

Yes, many finished leathers contain polymer based binders and protective coatings. They are there for a reason. They hold pigment in place, provide flexibility and durability, and protect the leather underneath.

And when those finishes eventually deteriorate, professional restoration is not about reinventing leather.

It's about understanding how the leather was originally finished, identifying what has failed, preserving what is still sound, properly preparing the damaged areas, and rebuilding the finish correctly.

Modern professional leather coating systems can provide excellent adhesion, flexibility, abrasion resistance, and durability when the right products and processes are used.

So when someone tells you that your leather is “smothered in plastic,” ask a better question:

What type of leather do I have, how was it originally finished, what part of that finish has actually failed, and what does it really need to be restored?

That answer will tell you a lot more about your leather than a marketing slogan ever will.