Ford FLTM BN 103-01 Resistance of Coated Fabrics and Plastic Films to Migration Staining and Blockage

The “Ford FLTM BN 103-01 Resistance of Coated Fabrics and Plastic Films to Migration Staining and Blockage” standard, developed by Ford Motor Company (Ford), defines a test method used to evaluate the resistance of coated fabrics, plastic films, and plastic extruded strips to migration staining and blockage under high-temperature conditions. This standard is widely applied to automotive interior trim materials, including seat covers, door panels, instrument panel trims, and decorative vinyl components.

Automotive interior trim materials typically contain plasticizers, dyes, pigments, adhesives, and other chemical additives. Over the lifespan of a vehicle, especially in hot climates, these substances can migrate from one material to another. This migration can cause:

• Permanent discoloration or staining
• Surface adhesion
• Adhesion (blocking) between adjacent materials
• Loss of aesthetic appearance
• Customer dissatisfaction and warranty claims

The Ford FLTM BN 103-01 standard was developed to ensure that interior trim materials maintain their appearance and functionality when exposed to high temperatures over time.

This standard applies primarily to:

• Coated textile fabrics
• Vinyl coated materials
• plastic films
• Extruded plastic wicks
• Interior trim components containing polymeric materials.

The described test method determines a material's resistance to the following:

• Migration staining: The transfer of colorants, plasticizers, or additives from one material to another.
• Blocking: Unwanted adhesion or bonding between contacting surfaces after exposure to heat.

In general, this test follows these steps:

• The test materials are placed in direct contact with a specified receiving surface.
• Pressure is applied using a controlled loading mechanism.
• The assembly is exposed to high temperatures for a specific period of time.
• Separation of samples after conditioning.
• Evaluation:
  • Degree of staining or discoloration
  • Signs of adhesion or blockage
  • Changes in surface appearance

The materials are then graded according to Ford's acceptance criteria.

Materials that do not conform to the Ford FLTM BN 103-01 standard may exhibit the following:

• Paint transfer to adjacent trim components.
• Yellowing or darkening of contact surfaces
• Plasticizer migration
• Changes in surface gloss.
• Adhesion between layers
• Material damage during separation.

These types of malfunctions may become apparent after the vehicle has been exposed to sunlight for an extended period.

Modern vehicle interiors contain numerous polymer-based materials positioned in close contact. In summer conditions, interior temperatures can exceed 80 degrees Celsius in some regions. Under these conditions, migration and occlusion become significant concerns.

The Ford FLTM BN 103-01 standard helps manufacturers in the following areas:

• To prevent color transfer between internal components.
• To increase long-term endurance.
• To ensure consistent image quality.
• Reducing warranty costs
• Verifying supplier materials before production.
• To ensure compliance with Ford material specifications.

This test is particularly important for PVC-coated fabrics, synthetic leather, thermoplastic films, and decorative upholstery materials.

Although developed by Ford, this method is widely used in the automotive industry by the following sectors:

• Ford Motor Company
• Major automotive original equipment manufacturers
• Interior trim suppliers
• Polymer compound manufacturers
• Coated fabric manufacturers
• Automotive materials testing laboratories

Many accredited laboratories offer testing services according to the Ford FLTM BN 103-01 standard as part of automotive material qualification programs. Materials that successfully meet the requirements of this standard generally provide the following:

• Improved color stability.
• Reduced additive migration
• Better resistance to adhesion.
• Improved appearance protection
• Greater durability in hot environments.
• Increased customer satisfaction

The Ford FLTM BN 103-01 standard is essential because it helps ensure that automotive interior materials maintain their appearance and performance when exposed to heat, pressure, and prolonged contact with other materials. Without this testing, discoloration, adhesion, and material degradation can occur in vehicle interiors over their normal lifespan. The main reasons why this standard is considered important are:

• Prevents migration staining: Many automotive materials contain the following:
  • plasticizers
  • Paints and pigments
  • stabilizers
  • Processing additives

When vehicles are exposed to high temperatures, these substances can migrate from one material to another. This can cause:

• Color transfer
• Staining of adjacent parts
• Visible color fading

This standard verifies that materials demonstrate resistance to such migrations before being approved for production.

• Prevents clogging and surface adhesion: Interior components often remain in direct contact during vehicle assembly and operation. Under heat and pressure, some materials can stick together; this phenomenon is called blocking. Blocking can lead to:
  • Surface damage when parts separate
  • Peeling of decorative coatings
  • Loss of texture or pattern
  • Poor fit and workmanship

This standard evaluates whether materials remain stable and detachable after thermal exposure.

• Simulates real vehicle conditions: Vehicle interiors can be exposed to extreme temperatures.
  • Temperatures of 70-90 degrees or higher in direct sunlight.
  • Prolonged exposure during summer months
  • Continuous contact between trim components

This standard enables engineers to predict long-term performance by recreating these conditions in a controlled laboratory environment.

• It preserves the interior appearance: Customers expect interior components to retain their original appearance throughout the life of the vehicle. Without adequate warping resistance, materials can develop the following:
  • dark spots
  • yellowing
  • Brightness changes
  • Stain marks
  • Irregular coloration

This standard helps ensure a consistent and high-quality appearance.

• Supports material selection: Automotive manufacturers evaluate many candidate materials before production. This standard helps engineers in the following areas:
  • Comparing material formulations
  • Selecting suitable coatings and plasticizers
  • Verifying supplier materials
  • Identifying potential compatibility issues.
• Supports long-term durability: Modern vehicle interiors are expected to remain attractive for many years to come. Materials that meet this standard generally demonstrate the following:
  • Better thermal stability.
  • Reduced additive migration
  • Improved resistance to adhesion.
  • Longer service life

In conclusion, the Ford FLTM BN 103-01 standard is a critical automotive material performance standard that evaluates the resistance of coated fabrics and plastic films to migration, staining, and adhesion. By simulating high-temperature service conditions, the test helps ensure that interior trim materials maintain their appearance, prevent unwanted color transfer, and exhibit adhesion resistance throughout the vehicle's lifespan. Compliance with this standard significantly contributes to durability, quality, and long-term aesthetic performance.

For many years, our organization, with its competent and experienced staff, has been understanding the needs of its customers, providing the advanced testing services they require, and assisting them in the establishment, implementation, and improvement of management systems. Within this framework, we also provide testing services to businesses in accordance with the Ford FLTM BN 103-01 standard.