The InWWerse® Disc, another groundbreaking product from MultiMaterial-Welding AG, is a state-of-the-art fastening solution specifically designed for joining dissimilar thermoplastics and very thin materials. Utilizing the unique MultiMaterial-Welding® ultrasonic technology, this fastener offers a quick and reliable alternative to adhesive bonding, especially in applications requiring Class A surfaces.
![InWWerse® Disc](https://cdn.prod.website-files.com/6569e8ad3fb2500a6f203fe9/6577c09a1e6956ac4d2edfa8_iw-disc-render%40640w.7602aa3c.webp)
Variants:
![Fastening for inter assembly.](https://cdn.prod.website-files.com/6569e8ad3fb2500a6f203fe9/6584ba0aea0c4bfde7c50854_inww-disc-2x6_new.png)
Standard
Substrate materials:
![Thermoplastic sheet (injected)](https://cdn.prod.website-files.com/6569e8ad3fb2500a6f203fe9/65d6f460c3dd47330707a8fb_Thermoplastic%20sheet%20(injected).png)
Thermoplastic sheet (injected)
![Thermoplastic sheet (thermoformed)](https://cdn.prod.website-files.com/6569e8ad3fb2500a6f203fe9/65d6f46a0c8cd795d22381af_Thermoplastic%20sheet%20(thermoformed).png)
Thermoplastic sheet (thermoformed)
![Thermoplastic organosheet](https://cdn.prod.website-files.com/6569e8ad3fb2500a6f203fe9/65d6f4c1fdada5d636514578_Organosheet.png)
Thermoplastic organosheet
Key Features:
- Optimized for Thin Materials: Expertly designed for materials less than 2.5 mm thick, ensuring no marks or fastener appearance on the distal side, maintaining the integrity of Class A surfaces.
- Advanced Ultrasonic Technology: Delivers very quick and reliable processing, making it superior to traditional bonding methods in many applications.
- Versatile Applications: Ideal for use in covers, invisible fastening between non-weldable plastics, and bonding thin-walled polymer components. It is also suitable for thermoplastic polymers, both reinforced and non-reinforced.
- Discrete and Effective Connections: Enables discrete connections without visible marks or fastener appearance on the opposite surface, perfect for both decorative and structural parts.
Discover the potential of the InWWerse® Disc Fastener for your next project – a cutting-edge solution for fastening thin and dissimilar thermoplastics, brought to you by MultiMaterial-Welding AG.
Automotive application
Our technology is applicable to a wide variety of assembly parts.
Click on the parts to find out more.
![Floor mat in a car](https://cdn.prod.website-files.com/651d477c3aa53e2ed5a95d6b/658dd8fad9b501bba5451f2c_Application%20area_Floor%20mat.webp)
Floor mat
Robust fastening systems ensure floor mats remain securely in place, enhancing vehicle interior stability and safety.
![Wheel arch of a car](https://cdn.prod.website-files.com/651d477c3aa53e2ed5a95d6b/658dd86cc1e7040c5d08f3a4_Application%20area_Wheel%20arch%20liner.webp)
Wheel arch liner
Reliable fastening methods secure wheel arch liners, ensuring durability and protection against road debris.
![Wheel arch of a car](https://cdn.prod.website-files.com/651d477c3aa53e2ed5a95d6b/658dd86cc1e7040c5d08f3a4_Application%20area_Wheel%20arch%20liner.webp)
Wheel arch liner
Reliable fastening methods secure wheel arch liners, ensuring durability and protection against road debris.
![Headliner of a car](https://cdn.prod.website-files.com/651d477c3aa53e2ed5a95d6b/658dd92e04072af38928eff8_Application%20area_Headliner.webp)
Headliner
Reliable fastening techniques ensure the headliner remains firmly in place, contributing to the vehicle's overall interior elegance and safety.
![Bumper of a car](https://cdn.prod.website-files.com/651d477c3aa53e2ed5a95d6b/658dd834b9114f8fc468703c_Application%20area_Exterior%20trim.webp)
Bumper
Efficient fastening solutions ensure secure and durable attachment of exterior trim parts.
![Bumper of a car](https://cdn.prod.website-files.com/651d477c3aa53e2ed5a95d6b/658dd834b9114f8fc468703c_Application%20area_Exterior%20trim.webp)
Bumper
Efficient fastening solutions ensure secure and durable attachment of exterior trim parts.
![exterior trim image](https://cdn.prod.website-files.com/651d477c3aa53e2ed5a95d6b/65b57a8f3061e1aff3c3f0af_exterior-trim.webp)
Exterior trim
Efficient fastening solutions ensure secure and durable attachment of exterior trim parts.
Load floor/trunk floor
Sturdy fastening solutions provide a robust foundation for load floors and trunk floors, ensuring durability and reliability in cargo management.
![Car load floor](https://cdn.prod.website-files.com/651d477c3aa53e2ed5a95d6b/65d289486104cd373d59e45a_Application%20area_Loadfloor-trunk.webp)
Spoiler
Reliable fastening solutions ensure a quick, secure and flawless assembly of spoilers.
![Car spoiler](https://cdn.prod.website-files.com/651d477c3aa53e2ed5a95d6b/65b579d57db264a75d73e8f4_spoiler.webp)
Spoiler
Reliable fastening solutions ensure a quick, secure and flawless assembly of spoilers.
![Car spoiler](https://cdn.prod.website-files.com/651d477c3aa53e2ed5a95d6b/65b579d57db264a75d73e8f4_spoiler.webp)
![MM-Welding car 3D model](https://cdn.prod.website-files.com/651d477c3aa53e2ed5a95d6b/65d28de621398d744b5f2d65_3D_Car_Zepp.webp)
1. Bumper
2. Crash pads and protections
3. Trunk compartment
![MM-Welding car 3D model](https://cdn.prod.website-files.com/651d477c3aa53e2ed5a95d6b/65d28de6960ab49fbbe2300f_3D_Car_Pin.webp)
1. Roof panels
2. Parcel shelf
3. Load floor / trunk floor
![MM-Welding car 3D model](https://cdn.prod.website-files.com/651d477c3aa53e2ed5a95d6b/65d28de63468e1a2dfd5e0a2_3D_Car_Fastener.webp)
1. Bumper
2. Exterior trim
3. Spoiler
![MM-Welding car 3D model](https://cdn.prod.website-files.com/651d477c3aa53e2ed5a95d6b/65d28de6ea8d5399d2936b3c_3D_Car_Disc.webp)
1. Exterior trim parts
2. Wheel arch liner
3. Spoiler
![MM-Welding car 3D model](https://cdn.prod.website-files.com/651d477c3aa53e2ed5a95d6b/65d28de7e03c01cd3300ca3f_3D_Car_Lotus.webp)
1. Wheel arch liner
2. Floor mat
3. Carpet floors
4. Headliner
Aerospace application
Our technology is applicable to a wide variety of assembly parts.
Click on the parts to find out more.
Plastic window covers
Robust fastening systems ensure plastic window covers are securely attached, enhancing safety and clarity in aerospace environments.
![Plastic window covers in an airplane](https://cdn.prod.website-files.com/651d477c3aa53e2ed5a95d6b/658ddac2ef485db1d6bbd34d_Application%20area_Plastic%20window%20covers.webp)
Galleys / kitchen
Secure fastening solutions maintain the integrity and functionality of galleys and kitchen areas in aerospace applications.
![Kitchen area in an airplane](https://cdn.prod.website-files.com/651d477c3aa53e2ed5a95d6b/658ddaa94d452c3f9cbc3530_Application%20area_Kitchen.webp)
![Interior floor panels in a train](https://cdn.prod.website-files.com/651d477c3aa53e2ed5a95d6b/658ddb1d61f9907c2de5e918_Application%20area_Interior%20floor%20panels.webp)
Interior floor panels
Durable fastening techniques ensure interior floor panels remain firmly anchored, contributing to cabin stability and passenger comfort in aerospace applications.
![Overhead compartments in an airplane](https://cdn.prod.website-files.com/651d477c3aa53e2ed5a95d6b/658ddacfd9b501bba54644a4_Application%20area_Overhead%20compartments.webp)
Overhead compartments
Efficient fastening solutions keep overhead compartments securely in place, ensuring passenger convenience and safety.
![MM-Welding aeroplane 3D model](https://cdn.prod.website-files.com/651d477c3aa53e2ed5a95d6b/65d468b2f3a7076cf8242e87_3D_Aerospace_DoublePin.webp)
1. Plastic window covers
![MM-Welding aeroplane 3D model](https://cdn.prod.website-files.com/651d477c3aa53e2ed5a95d6b/65d46a4ba802972f67262b4f_3D_Aerospace_DoublePin.webp)
1. Galleys / kitchen
2. Interior floor panels
3. Overhead compartments
Railway application
Our technology is applicable to a wide variety of assembly parts.
Click on the parts to find out more.
![Seating and trim in a train](https://cdn.prod.website-files.com/651d477c3aa53e2ed5a95d6b/658de8e4c1e7040c5d11ab57_Application%20area_Seating%20and%20trim.webp)
Seating and trim
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go to product![Floor trim panel in a train](https://cdn.prod.website-files.com/651d477c3aa53e2ed5a95d6b/658de8d7f62d79d1e9796f16_Application%20area_Floor%20trim%20panel.webp)
Floor trim panels
Sturdy fastening systems for floor trim panels in railway vehicles guarantee durability and stability, enhancing overall passenger experience.
![Side wall panel in a train](https://cdn.prod.website-files.com/651d477c3aa53e2ed5a95d6b/658dec5ad9b501bba54f30c6_Application%20area_side%20wall%20panel.webp)
Side wall panels
Reliable fastening solutions ensure side wall panels in railway applications are securely attached, enhancing passenger safety and comfort.
![MM-Welding train 3D model](https://cdn.prod.website-files.com/651d477c3aa53e2ed5a95d6b/65d46ba17cad10ab37d6c563_3D_Train_DoublePin.webp)
1. Seating and trim
2. Floor trim panels
![MM-Welding train 3D model](https://cdn.prod.website-files.com/651d477c3aa53e2ed5a95d6b/65d46befb856a1d01f2422c8_3D_Train_Fastener_1.webp)
1. Side wall panels
HVAC application
Our technology is applicable to a wide variety of assembly parts.
Click on the parts to find out more.
![Moisture control for an HVAC](https://cdn.prod.website-files.com/651d477c3aa53e2ed5a95d6b/658ded6fbc79959449269048_Application%20area_Moisture%20control.webp)
Moisture control
Durable fastening systems effectively secure moisture control components, ensuring reliable performance in HVAC systems.
![Control operation units in a HVAC](https://cdn.prod.website-files.com/651d477c3aa53e2ed5a95d6b/658ded2562cc519051977a42_Application%20area_Control%20operation%20units.webp)
Control and operation units
Secure fastening techniques ensure control and operation units in HVAC systems are firmly mounted, guaranteeing stability and ease of use.
![Air duct housing in a HVAC](https://cdn.prod.website-files.com/651d477c3aa53e2ed5a95d6b/658decee0c1bc035297a50d5_Application%20area_Air%20duct%20housing.webp)
Air duct housing
Reliable fastening methods maintain the stability of air duct housings, ensuring efficient airflow management in HVAC systems.
1. Moisture control
2. Control and operation units
3. Heat pump enclosure
4. Air duct housing
Want to find out more about our technology?
Talk to our technical expert and ask away.
We’re looking forward to hearing from you.
![](https://cdn.prod.website-files.com/651d477c3aa53e2ed5a95d6b/66dfe87665c477d97d70a437_mmw-logo-white.png)