Hydrophobic Breathable Coating Formulation

This advanced coating provides water-repellency while allowing moisture vapor to escape, ideal for activewear and outdoor gear. Designed to maintain comfort by keeping textiles dry while preserving breathability, which is essential for maintaining ideal performance conditions.

Technical Specifications

  • pH Level: 7.0
  • Shelf Life: 2 years when stored in a cool, dry place without direct sunlight exposure
  • Batch Size: 1000 L
  • Processing Time: 4 hours total: 2 hours for mixing and 2 hours for quality control and adjustments
  • Temperature: 25°C for processing and application
  • Storage: Store at 5-30°C in a dry environment with relative humidity below 50%
  • Viscosity: 75 cP at 25°C
  • Certification: Complies with REACH regulations, ISO 9001 certified for manufacturing

Ingredients

IngredientPercentageFunction
Fluoropolymer30.0%Forms a hydrophobic barrier that repels water
Silicone Elastomer20.0%Enhances flexibility and breathability of the coating
Polyurethane Dispersion25.0%Acts as the primary binding agent to adhere coating to textile fibers
Silica Nanoparticles10.0%Increases durability and abrasion resistance of the coating
Isopropanol15.0%Serves as the solvent to reduce viscosity and support application process

Manufacturing Process

Mixing Phase

  1. Preheat mixer to a controlled temperature of 25°C.
  2. Combine Fluoropolymer, Silicone Elastomer, and Polyurethane Dispersion at medium speed for 10 minutes using a high-shear mixer.
  3. Gradually add Silica Nanoparticles while maintaining a consistent mixing speed to ensure uniform dispersion.

Solvent Addition Phase

  1. Slowly incorporate Isopropanol into the mixture while stirring at low speed to prevent volatility loss.
  2. Continue stirring until a homogeneous solution is achieved, with no visible particulates.

Quality Control

  1. Check the viscosity using a viscometer to ensure a value between 50-100 cP.
  2. Perform a hydrophobicity test to verify water repellency properties meet industry standards.

Usage Instructions

Apply the coating evenly to the target textile using a spraying technique. Ensure coverage is uniform and allow drying naturally. The recommended application amount is 50g/m². Repeat application bi-annually for sustained performance.

View full formulation details on AIFormulator