Rockytan RD – Retanning Agent for Improved Filling, Nubuck, and Suede Leather

Rockytan RD is a high-performance synthetic retanning agent based on melamine condensation technology. It is specially developed to provide excellent filling properties, particularly in loose areas of the hide, resulting in fuller and more uniform leather.

Rockytan RD is especially suitable for nubuck, suede, and velvet leathers, where it improves the nap and buffing characteristics while enhancing dye penetration and color brilliance. Its unique formulation allows manufacturers to produce soft, compact, and high-quality leather with an attractive appearance.

Key Features and Benefits:

• Excellent filling action, particularly on loose belly areas.
• Improves the compactness and uniformity of leather.
• Enhances the nap and buffing properties of suede and nubuck.
• Produces brighter and more vivid dye shades.
• Suitable for footwear, upholstery, and leather goods.
• Easy to dissolve in both hot and cold water.
• Provides a soft and pleasant leather handle.
• Suitable for velvet, nubuck, and suede leather articles.

Technical Specifications

Applications in Leather Processing:

Rockytan RD is designed for use in retanning operations where fullness, softness, and improved buffing performance are required. The product is particularly effective in treating loose areas of hides and skins, producing leather with enhanced physical properties and a superior surface finish.

Recommended applications:

• Nubuck leather production.
• Suede and velvet leathers.
• Shoe upper leather.
• Upholstery leather.
• Garment leather.
• Leather goods and accessories.
• Retanning of bovine wet blue and small skins.

Its ability to improve fluffing and nap formation makes Rockytan RD an excellent choice for premium suede and nubuck articles.

Performance Advantages:

Superior Filling Effect

Rockytan RD effectively fills loose sections of the leather, especially the belly area, resulting in a more compact and uniform structure.

Improved Nap and Buffability

For nubuck and suede articles, Rockytan RD enhances the buffing characteristics and creates a soft, even nap with an attractive appearance.

Brighter Dye Shades

The product improves dye uptake and distribution, allowing leather manufacturers to achieve brighter and more vibrant colors.

Excellent Process Flexibility

Rockytan RD dissolves easily in both hot and cold water, simplifying its incorporation into existing retanning formulations.

Application Recommendations:

Rockytan RD is most effective when applied after the neutralization process.

Important processing notes:

• Use only after proper neutralization.
• Recommended leather pH before application: 4.5–4.8.
• Not recommended for use in solutions with a pH lower than 3.
• Compatible with standard retanning and dyeing systems.

The dosage should be adjusted according to the leather type, required fullness, and desired final properties.

Typical dosage:

• 3–5% based on shaved wet blue weight.

Laboratory and production trials are recommended to determine the optimum formulation.

Why Choose Rockytan RD?

Rockytan RD combines excellent filling performance with outstanding suede and nubuck characteristics. Its melamine-based technology improves fullness, softness, and dye brilliance while helping tanners produce premium-quality leather with a smooth and uniform appearance.

Whether used for shoe uppers, suede, nubuck, or velvet leathers, Rockytan RD delivers reliable and consistent results.

Packaging:

Rockytan RD is available in:

• 25 kg polyethylene (PE) bags.

Custom 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 recommended storage conditions, Rockytan RD has a shelf life of 12 months.

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