Rockytan RAL – Aluminum Tanning Agent for White, Nubuck, and Suede Leather

Rockytan RAL is a high-quality aluminum tanning and retanning agent based on pure crystallized aluminum tri-formate. It is suitable for all types of leather and is particularly recommended for the production of white, pastel-colored, nubuck, and suede leathers.

Thanks to its excellent dye-fixing properties, Rockytan RAL improves color brilliance and enhances the brightness of dyed leather articles. In addition, it provides superior buffability, making it an ideal solution for nubuck and suede production.

Rockytan RAL is compatible with mineral tanning systems and can be used alongside chrome tanning agents to produce leather with a lighter shade and a finer, flatter grain structure.

Key Features and Benefits:

• Suitable for all types of leather.
• Improves dye fixation and color brilliance.
• Ideal for white and light-colored leathers.
• Enhances buffability in nubuck and suede articles.
• Produces a fine and flat grain structure.
• Compatible with mineral tanning agents.
• Easily soluble in cold and warm water.
• Contributes to improved leather appearance and quality.
• Supports hydrophobic agent fixation.

Technical Specifications

Applications in Leather Processing:

Rockytan RAL is a versatile tanning auxiliary designed for use in various leather manufacturing processes. Its unique aluminum-based chemistry improves dye fixation, leather appearance, and processing performance.

Recommended applications:

• White and pastel-colored leather production.
• Nubuck and suede leather manufacturing.
• Dye fixation and shade enhancement.
• Retanning of chrome-tanned leather.
• Hydrophobic and water-repellent leather articles.
• Footwear leather.
• Upholstery leather.
• Garment leather.
• Leather goods and accessories.

When used together with chrome tanning agents in the main tanning process, Rockytan RAL helps produce leather with a lighter color and a smooth, fine grain.

Performance Advantages:

Excellent Dye Fixation

Rockytan RAL effectively fixes dyestuffs within the leather structure, resulting in brighter, cleaner, and more uniform colors.

Improved Buffability

The product enhances the buffing characteristics of nubuck and suede leather, helping manufacturers achieve a smooth and consistent surface.

Superior White Leather Production

Its aluminum-based formulation makes Rockytan RAL particularly suitable for white and light-colored leather articles that require excellent brightness and color stability.

Better Grain Quality

When combined with chrome tanning agents, Rockytan RAL contributes to a fine, flat grain structure and improves the visual appearance of the finished leather.

Compatibility:

Rockytan RAL offers:

• Excellent compatibility with mineral tanning agents.
• Limited compatibility with anionic tanning agents and dyestuffs.

For optimum performance, compatibility tests are recommended before incorporating the product into new formulations.

Recommended Dosage:

Retanning (Based on Shaved Weight)

• 1–3% Rockytan RAL

Increasing Color Brilliance After Acid Fixation

• 0.3–1% Rockytan RAL

Fixation of Hydrophobic Agents

• 2–3% Rockytan RAL

The exact dosage depends on the type of leather, process conditions, and the desired final properties.

Why Choose Rockytan RAL?

Rockytan RAL combines excellent tanning performance with outstanding dye fixation and buffability. Its ability to improve leather brightness, enhance suede and nubuck quality, and support hydrophobic treatments makes it a valuable addition to modern leather processing systems.

Whether used in white leather production, retanning, or specialty applications, Rockytan RAL delivers reliable and consistent results.

Packaging:

Rockytan RAL is available in:

• 25 kg polyethylene (PE) bags.

Additional packaging options may be available upon request.

Storage Conditions:

For maximum product stability:

• Store in tightly sealed containers.
• Keep at temperatures between 5°C and 25°C.
• Protect from moisture and direct sunlight.
• Avoid freezing and excessive heat.

Under proper storage conditions, Rockytan RAL has a shelf life of 12 months.

Always consult the Material Safety Data Sheet (MSDS) before use.