Krytox™ for NVH in Automotive Interiors

Reduce squeaks, rattles and vibrations in automotive interiors with Krytox™. These high-performance PFPE lubricants provide long-lasting friction control between plastics, metals, leather and rubber – helping improve comfort, perceived quality and the customer experience in modern vehicles.

Reduce squeaks, rattles and vibrations in automotive interiors

Unwanted noise in automotive interiors affects comfort, perceived quality and the customer experience. When materials such as plastics, metals, leather, rubber, textiles and glass meet in tight constructions, even small movements can create friction, creaking, squeaking, rattling or vibrations.

These challenges are often referred to as NVH – Noise, Vibration and Harshness – or BSR, buzz, squeak and rattle. For design engineers and production teams, the challenge is to find a solution that reduces unwanted noise without compromising materials, feel or service life.

Krytox™ high-performance PFPE lubricants are used to reduce friction and unwanted noise in demanding automotive applications. The products are designed for long-lasting performance, low migration and good compatibility with several materials used in modern automotive interiors.

At G A Lindberg, we help you find the right Krytox™ solution for your NVH application.

What is NVH?

NVH stands for Noise, Vibration and Harshness. It describes noise, vibrations and perceived harshness or discomfort in a vehicle.

In automotive interiors, NVH problems can occur when different materials move against each other. Examples include plastic against metal, leather against leather, rubber against glass, or panels affected by vibration during driving.

Common NVH and BSR problems include:

  • squeaks from panels, compartments and controls
  • rattling from components with tight tolerances
  • friction noise between plastics, metals, leather and rubber
  • stick-slip in seals and weatherstrips
  • noise from seats, headrests and seat belt guides
  • vibrations or unwanted noise from moving mechanisms

As vehicles become quieter, especially electric vehicles and plug-in hybrids, even small interior noises become more noticeable. This makes NVH and BSR solutions increasingly important in modern vehicle development.

Why Krytox™ is used for NVH and BSR

Krytox™ oils and greases are based on PFPE, perfluoropolyether. This makes them particularly suitable for applications where the lubricant needs to perform over a long period of time, stay in place and remain compatible with surrounding materials.

Krytox™ can help to:

  • reduce friction between different materials
  • reduce or eliminate creaking, squeaking and rattling
  • provide long-lasting performance without relubrication
  • reduce the risk of migration to nearby surfaces
  • perform across large temperature variations
  • help preserve plastics, elastomers and leather without discoloration
  • provide a clean, odorless and stable solution for interior applications

Krytox™ is also silicone-free, chemically inert and has low volatility. This makes the products suitable for automotive applications where high performance, clean application and long service life are required.

Typical application areas in automotive interiors

Krytox™ is used in many contact points where movement, friction or material interfaces can create unwanted noise. Examples of applications include:

Visors and vanity mirrors

Reduces squeaks and friction in hinges, joints and small mechanisms.

Airbag and steering wheel components

Can be used where moving components require stable lubrication and low friction.

Instrument panels and interior trim panels

Reduces creaking and rattling between plastic parts, metal attachments and other materials.

Storage compartments and lids

Provides smoother movement and reduces noise during opening, closing and vibration.

Headrests, seats and leather trim

Reduces friction noise, especially where leather, plastic or metal are in contact with each other.

Console parts and controls

Contributes to a more premium feel in moving components and helps reduce unwanted noise.

Seat belt guides

Can reduce friction and noise where the seat belt, plastic parts and guides interact.

Rubber seals, weatherstrips and window lift systems

A thin film of Krytox™ can reduce stick-slip, improve sliding contact and help reduce wind noise and noise from seals.

Krytox™ solutions for different NVH challenges

The most suitable Krytox™ solution depends on materials, load, movement, application method and service life requirements. For NVH applications in automotive interiors, PFPE-based oils and greases with different viscosities and properties are often used.

Examples of products that may be relevant include Krytox™ GPL 105, Krytox™ GPL 205 and Krytox™ GPL 215.

Krytox™ GPL 105 can be an option where a thin, clean oil film is suitable. Krytox™ GPL 205 is often used where a stable grease is needed to reduce friction and unwanted noise. Krytox™ GPL 215 may be relevant in more heavily loaded applications where extra pressure resistance is required.

The right product should always be selected based on the specific application. Contact G A Lindberg for guidance on which Krytox™ solution is best suited for your NVH problem.

Read more about Krytox™ GPL 215 on the product page.

Benefits of Krytox™ in automotive interiors

Krytox™ offers several technical and practical benefits for design engineers, production teams and quality work:

  • long-lasting lubrication
  • low migration
  • low volatility and low outgassing
  • good compatibility with plastics, metals, elastomers and leather
  • silicone-free formulation
  • odorless and virtually undetectable after application
  • normally does not discolor surfaces
  • can be applied manually or automatically
  • suitable for one-time application in production
  • helps reduce complaints related to unwanted noise

Case: unwanted noise eliminated with Krytox™

In a documented example, a European premium car manufacturer experienced an unwanted noise issue in a parking brake mechanism. The noise originated where a seal was in contact with a metal piston rod in the brake actuator.

By applying Krytox™ GPL 205 as a PFPE film on the seal, the components could work together with lower friction. The noise was eliminated immediately, and subsequent lifetime testing confirmed the effectiveness of the solution.

The example shows how a small amount of the right lubricant can make a significant difference to comfort, perceived quality and the customer experience.

How G A Lindberg can help

G A Lindberg helps you select the right Krytox™ solution for your NVH application. We base our recommendation on the application, materials, production environment and the requirements for service life, cleanliness and performance.

We can support you with:

  • needs analysis of NVH and BSR problems
  • recommendation of a suitable Krytox™ product
  • technical guidance on material compatibility
  • support regarding application method
  • dialogue around dosing, service life and production adaptation

Frequently asked questions about Krytox™ and NVH

What does NVH mean?

NVH stands for Noise, Vibration and Harshness. It describes noise, vibrations and perceived discomfort in a vehicle. In interiors, it often refers to creaking, squeaking, rattling and friction noise.

What does BSR mean?

BSR stands for buzz, squeak and rattle. It is used to describe unwanted buzzing, squeaking and rattling noises in vehicles.

Why is Krytox™ used in automotive interiors?

Krytox™ is used to reduce friction and unwanted noise between materials such as plastics, metals, leather and rubber. The products offer long service life, low migration and good material compatibility.

Is Krytox™ silicone-free?

Yes, Krytox™ oils and greases are silicone-free. According to product information from Chemours, they also contain no VOC materials or chlorine.

Which lubricant is suitable for squeaks and rattles in automotive interiors?

It depends on the materials, movement, load and application method. PFPE-based Krytox™ oils and greases are often used to reduce friction, squeaks and rattles in automotive interiors.

Can Krytox™ be used on plastics and rubber?

Yes, Krytox™ has good compatibility with many plastics, elastomers, metals and leather. This makes the products suitable for many interior contact points in vehicles.

How much Krytox™ is needed?

In many NVH applications, only a small amount is required. The recommended amount depends on the application, surface, material and application method.

Contact us for the right Krytox™ solution

Are you experiencing problems with squeaks, rattles, vibrations or friction noise in automotive interiors? Contact G A Lindberg and we will help you identify the right Krytox™ solution for your application.

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