Automotive Rain Repellent Spray formula

A professional-grade water repellent cream designed for shoes, offering hydrophobic coating and breathable barrier properties. It ensures all materials remain non-yellowing and fast-drying while providing a safe application on all materials.

Technical Specifications

  • pH Level: 7
  • Shelf Life: 24 months
  • Batch Size: 100 - 500 liters
  • Processing Time: 1 - 2 hours
  • Temperature: Processing at 70°C, cooling to 40°C
  • Storage: Store in a cool, dry place away from direct sunlight.
  • Viscosity: Medium
  • Certification: REACH, RoHS compliant

Ingredients

IngredientPercentageFunction
Water50.0%Solvent
Silicone Emulsion20.0%Hydrophobic agent
Polyurethane Dispersions10.0%Breathable barrier
Ethanol10.0%Solvent, fast drying agent
Nonionic Surfactant5.0%Emulsifier
Preservative1.0%Preservative
Fragrance2.0%Fragrance
Colorant1.0%Colorant
pH Adjuster1.0%pH regulation

Manufacturing Process

Phase A - Preparation

  1. Combine water and nonionic surfactant in a beaker.
  2. Heat to 70°C while stirring continuously until homogeneous.

Phase B - Emulsification

  1. In a separate container, mix silicone emulsion and polyurethane dispersions.
  2. Slowly add the mixture from Phase A into Phase B while stirring.

Phase C - Finalization

  1. Cool the mixture to 40°C while stirring.
  2. Add ethanol, preservative, and fragrance.
  3. Adjust pH to 7 using sodium hydroxide solution.
  4. Introduce colorant under low shear mixing until evenly distributed.

Usage Instructions

Apply a thin, even layer of the cream onto clean shoe surfaces using a soft cloth. Allow to dry for 15-20 minutes before use.

View full formulation details on AIFormulator