Rockytan RP2

Premium Naphthalene-Based Synthetic Retanning Agent for Leather Processing

Rockytan RP2 is a weakly acidic, naphthalene-based synthetic retanning agent specially developed for the production of high-quality leather. Its versatile formulation makes it suitable for virtually all types of leather, including upholstery, garment, shoe upper, bag, and leather goods applications.

Thanks to its excellent dispersing and bleaching properties, Rockytan RP2 improves leather uniformity, enhances dye penetration, and helps achieve cleaner, brighter shades—particularly in white and light-colored crust leathers.

Key Features & Benefits:

• Suitable for all types of leather.
• Weakly acidic synthetic retanning agent.
• Excellent dispersing action on dyes and retanning chemicals.
• Helps produce clean, bright, and uniform leather shades.
• Reduces superficial deposition of retanning materials.
• Improves penetration of dyestuffs, amino resins, and replacement syntans.
• Particularly recommended for white and pastel-colored crust leathers.
• Compatible with various neutralization systems.

Product Description:

Rockytan RP2 is an anionic, naphthalene-based syntan designed to optimize retanning performance and improve the overall quality of finished leather. It can be used independently or in combination with selected retanning agents to enhance fullness, color uniformity, and processing efficiency.

When used during neutralization together with agents such as sodium formate and sodium bicarbonate, Rockytan RP2 minimizes surface deposition and promotes better distribution of retanning materials throughout the leather structure.

Its excellent dispersing properties ensure homogeneous penetration of dyestuffs, amino resins, and replacement syntans, resulting in more consistent leather characteristics.

Technical Specifications

Applications:

Rockytan RP2 can be used in:

• Shoe upper leather
• Upholstery leather
• Garment leather
• Bag and leather goods
• White crust leather
• Soft leather articles
• Vegetable-tanned and chrome-tanned leather
• General retanning processes

Recommended Dosage:

The recommended dosage is typically 1–7% based on shaved weight, depending on the leather type and the desired properties.

Rockytan RP2 is generally applied after neutralization and dyeing stages.

Processing Recommendations:

• Rockytan RP2 may create a bleaching effect on dyes when used together with vegetable tanning agents or products such as Rockytan RR7.
• For white crust and light-colored leather articles, it is recommended to use Rockytan RP2 alone or in carefully selected formulations.
• The exact dosage and process conditions should be optimized according to the leather type and final application.

Storage & Handling:

Store Rockytan RP2 in tightly sealed containers in a cool and dry environment.

Storage conditions:

• Recommended temperature: 5°C–25°C
• Protect from direct sunlight.
• Avoid freezing conditions.
• Keep packaging tightly closed to prevent moisture absorption and product degradation.

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