Fiat MS-90152 Tape - Double Layer - Pressure Sensitive Adhesive

The “Fiat MS-90152 Tape - Double Layer - Pressure-Sensitive Adhesive” standard, developed by Fiat Chrysler Automobiles (FCA) (now Stellantis), an Italian-American automotive company, is one of numerous internal engineering and materials standards used by Fiat (Stellantis) in vehicle development, testing, and supplier qualification processes. This standard, like Fiat material specifications, generally aims to define one or more of the following:

• Material composition requirements
• Physical and mechanical performance limits
• Environmental resistance tests
• Chemical compatibility requirements
• Supplier approval and verification procedures
• Quality control acceptance criteria for production parts.

These standards are primarily used by:

• Component suppliers
• Laboratories
• Verification engineers
• Production quality departments

This standard, like other Fiat MS standards, is referenced alongside the following:

• FCA material approvals
• ISO standards
• ASTM test methods
• Fiat performance specifications (PF), laboratory procedures (LP), or component specifications (CS)

The Fiat MS-90152 standard was developed for the following purposes:

• Consistent supplier quality worldwide.
• Durability in automotive operating conditions.
• Compatibility with related materials
• Compliance with environmental and safety regulations.
• Repeatable production performance

The test methods defined in the Fiat MS.90152 standard are as follows:

• Overlap shear adhesion test: This test evaluates the resistance of tape to shear forces when two overlapping panels are glued together. The purposes of this test are as follows:
  • Measures structural holding strength.
  • It evaluates long-term cargo carrying capacity.
  • Simulates the stress on exterior trim parts during vehicle operation.

In general, the following are considered:

• Glued metal or painted panels
• Controlled overlap area
• Tensile/shear loading to fracture
• Measuring shear strength or fracture mode.

Common refraction modes include:

• Adhesive breakage
• Cohesive foam fracture
• Substrate fracture

This is especially important for:

• Fuselage side moldings
• Logos
• Appliques
• Decorative trims

• Resistance to adhesive creep at high temperatures.
• Ability to keep bonded parts attached under heat and load.

This method typically follows these steps:

• Bonded sample loaded with a fixed weight.
• Exposure to high temperatures
• Monitoring belt movement/slippage
• Determining the creep failure temperature.

Automotive exterior surfaces can reach temperatures of 80-100 degrees Celsius or higher in sunlight. If adhesive creep occurs:

• Trim pieces are slippery.
• The emblems are detachable.
• Gaps and compatibility issues may arise.

Meanwhile, the Fiat MS-90152 standard also includes more extensive durability tests:

• Adhesion test: Measures the force required to peel the tape off the following surfaces:
  • Painted steel
  • Plastic surfaces
  • Coated panels

The test is usually performed at the following temperatures:

• Room temperature
• Low temperature
• High temperature

• heat aging
• humidity cycle
• Thermal shock
• Exposure to weather conditions

Proficiency tests include the following:

• Heat and humidity cycles
• Aging conditions that simulate vehicle lifespan.

• Stellantis paint systems
• Transparent coatings
• Modern automotive coatings

This is very important because,

• Some adhesives damage paint systems.
• Paint peeling may occur during removal.
• Poor compatibility reduces durability.

• aerodynamic loads
• Manual pull
• Edge lifting
• Coup forces

In general, typical performance characteristics evaluated according to the Fiat MS-9152 standard are as follows:

• Overlap shear strength: Structural holding power.
• Peel-and-stick: Edge retention
• Creep resistance: High temperature stability.
• Environmental aging: Long-term durability
• Paint compatibility: Coating protection
• Moisture resistance: Outdoor durability
• Thermal cycling: Expansion/contraction resistance
• Cohesive breakdown behavior: Adhesive integrity

According to original equipment manufacturers, the Fiat M-90152 standard is generally associated with the following:

• External trim connection
• Labeling systems
• Molding connection
• Decorative exterior parts
• Mounting pin assembly
• Acrylic foam automotive tapes

In the automotive industry, adhesive tapes generally replace the following:

• Screws
• Clips
• Rivets
• Resources

The advantages of these tapes are as follows:

• Lower weight
• Improved appearance
• Reduction in corrosion.
• Simplified assembly

However, the adhesive must be resistant to the following:

• Exposure to UV rays
• Heat
• Rain
• Vibration
• Thermal expansion
• Car wash
• chemicals
• Long vehicle lifespan

The Fiat MS-90152 standard test methods aim to verify that bonded exterior components remain safe and cosmetically acceptable throughout the vehicle's service life.

Fiat MS-90152 and similar standards are necessary because automotive production relies on tight repeatability. Even small variations in raw materials or processing can affect:

• Vehicle durability
• Interior view
• Corrosion resistance
• Noise and vibration behavior
• Security performance
• Guaranteed reliability

The Fiat MS-90152 standard is an automotive specification for pressure-sensitive bilayer adhesive tapes used specifically for the following applications:

• External trim connection
• Emblem/badge
• External molding systems
• Acrylic foam adhesive tapes

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 in accordance with the Fiat MS-90152 standard.