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RepelFlex® L is a family of UV curable, flexible, hard coatings that are designed for a variety of substrates. RepelFlex-L is designed specifically for application to leather substrates, providing a highly durable, scratch and stain resistant surface. The coating is extremely flexible and thin, preserving the look and feel of genuine leather. In addition, it is friendly to the environment as it contains no solvent or Fluorine and is UV curable.

Product Type: Coating

Features: Abrasion Resistant, Durable, Excellent Substrate Adhesion, Excellent Transparency Properties, Flexible, Good Adhesion, Good Scratch Resistance, Good Stain Resistance, Hardcoat, High Hardness, Microbe Resistant, Soft Touch, UV Curable

Application Area: Furniture

Compatible Substrates & Surfaces: Leather, Plastics

Application Method: Spray

Chemical Family: Silanes

Technical Data Sheet
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Identification & Functionality

Chemical Family
Product Type

Features & Benefits

Applications & Uses

Application Area
Application Method
Compatible Substrates & Surfaces
Applications

RepelFlex-L is designed to provide outstanding anti-scratch and anti-stain protection to genuine and faux leather surfaces. Ideal applications include the following:

  • Luxury leather goods and accessories (handbags, belts, bracelets, wallets, watch bands, etc.)
  • Footwear
  • Seating (automotive, aerospace, home and office furniture, etc.)
  • Other applications where the protection against scratching and stains is equally important as the retention of the look and feel of genuine leather

Wet based deposition methods such as dip or wipe are acceptable. Atomized spray preferred. UV curing is achieved at 1,100 to 1300 mJ/cm² using a standard class "H" lamp. For some applications a short bake at 50-70°C is recommended prior to the UV cure step.

Properties

Physical Form

Technical Details & Test Data

Technology

The unique characteristics of RepelFlex-L result from a combination of proprietary polymers with distinct phases and properties. Balancing the ratio of these polymers is the key to enabling the unique characteristics of hardness, durability, and flexibility. RepelFlex-L is designed to be applied using simple atomized spray equipment followed by a rapid cure through the exposure to UV light. RepelFlex-L is formulated to be solvent and fluorine-free.

Material Characteristics
  • Target Coating Thickness (wet): 1.5 to 1.9 microns
  • Solvent-free
  • Fluorine-free
  • Static contact angle: Water 110° / Oil (Diiodomethane, CAS No. 75-11-6) 65°
  • Adhesion: ASTM D3359 - Cross Cut Adhesion Test: (5) - No de-lamination observed
  • Flexibility: ASTM D522 - Cylindrical Bend Test/Conical Mandrel – Pass
  • Static Bending: (R = 5mm, 7 days @70°C) – No deformation or cracking observed
  • Anti-Stain: Martindale Blue Jean Abrasion – 1KG force, 5000 cycles – Pass
  • Resistant to common fluids (lotions, condiments, cosmetics, household cleaners, etc.)
  • Transparency: ≥ 90%

Storage & Handling

Handling and Storage
  • Storage Recommendations: Prevent exposure to light and maintain 10o C – 45o C.
  • Shelf Life: 1 year
  • Follow good standard industry hygiene practices. Apply in a well-ventilated area. Wear appropriate personal protective equipment (PPE).
  • Avoid: Exposure to heat, flames, sparks and other sources of ignition
  • Store in tightly closed opaque containers under normal warehouse conditions.
  • Stable at normal storage temperatures and conditions for up to one year