Achieve high-performance, glossy leather with our patent systems

Achieve high-performance, glossy leather with our patent systems

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Stahl’s Patent Leather systems make it easy for manufacturers to create high-gloss, luxurious leather for the apparel and accessories industry. These solutions use a transparent, flexible, lightfast film that protects white and pastel shades, so that the patent effects can also be applied to colored leather. We also offer systems for classic and thermosetting patent leather finishes, as well as special effects. What’s more, our patent systems meet demanding technical requirements for lightfastness, cold flex resistance, heat stability, and elasticity. So, whether you need a base coat, a water-based coat, or a solvent-based patent system, our portfolio can offer the right solution for your leather.


Product
Objective
Main Features
RC-22-991
Provide acetone/solvent resistance and ensure intercoat adhesion
Patent and college base coat.
RC-38-901
Provide acetone/solvent resistance and ensure intercoat adhesion
Patent and college base coat.
EX-RC-43-200
Provide acetone/solvent resistance and ensure intercoat adhesion
Very soft patent and college base coat - Not suitable for Thermosetting.

Aqualen® Top APT
High gloss aliphatic PU designed for Patent Look
Water patent - Medium hard.
Aqualen® Top SPT
High gloss aliphatic PU designed for Patent Look
Soft water patent.
Aqualen® Top LN.A
High gloss aliphatic PU designed for Patent Look
Water patent - Medium hard.
WT-42-511
High gloss aliphatic PU designed for Patent Look
Water patent casein look - Good fastnesses - Very hard.
WT-72-500
High gloss aliphatic PU designed for Patent Look
Water patent - Ready to use - Hard.

SU-8220
Reactive solventborne patent system designed for Smooth Mirror Gloss
Polyisocyanate - For lightfast solvent patent.
SU-8254
Reactive solventborne patent system designed for Smooth Mirror Gloss
Bluish white pigmented polyol - Very high gloss.
SU-8255
Reactive solventborne patent system designed for Smooth Mirror Gloss
Polyester Polyol - Very high gloss - Deep transparency - Natural smooth feel.
SU-8260
Reactive solventborne patent system designed for Smooth Mirror Gloss
Polyisocyanate - Solvent patent.
EX-SU-8265
Reactive solventborne patent system designed for Smooth Mirror Gloss
Polyester Polyol - Very high gloss - Deep transparency - Natural smooth feel - For Thermosetting resistance.
LD-5815
Reactive solventborne patent system designed for Smooth Mirror Gloss
Jet black liquid dye.
LP-5132
Reactive solventborne patent system designed for Smooth Mirror Gloss
Jet black pigment.

Learn more about our patent systems and their properties by downloading the catalog.


Stahl’s patent leather systems comprise base coats, top coats, and additives, and cover the entire process of creating top-quality patent leather. A base coat layer is enhanced with a bi-component top coat, or paint, based on a polyisocyanate crosslinker and polyester polyol.


Acetone and solvent resistance for base coat systems

Our base coat systems have a high covering and filling layer that gives the tanned leather a smooth surface to boost adhesion and flexibility, especially between coatings. These acetone- and solvent-resistant base coats also ensure a durable finish and a smooth natural feel. They can also be used for college base coats.


Water-based patent systems for high-gloss and Patent look

Stahl’s water-based patent systems, including products from our Aqualen® portfolio, add a glossy patent look through aliphatic PU. This range includes products ranging from soft to very hard. In addition, WT-42-511 also offers good fastness.


Solvent-based patent systems for a smooth mirror gloss

Stahl’s solvent-based patent system is reactive and produces a smooth mirror gloss. Some of these products are highly transparent with a natural, smooth feel, while others are jet black liquid dyes, or are pigmented a blue-white color. Additionally, SU-8220 is lightfast, while EX-SU-8265 is ideal for adding thermosetting resistance.



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Achieve high-performance, glossy leather with our patent systems
Joachim Henkmann
Global Marketing - Business Unit Leather Chemicals