Seam Bonding in Vehicles & Ships – COSMO® MS/PU Adhesives

Weiss Chemie + Technik | Adhesives | Applications | Transportation / Marine | 4. Butt joints

COSMO® Adhesives and Sealants for Structural Bonding of Butt Joints

Process-Reliable Butt Joint Bonding in the Transportation and Marine Sector

Permanently sealed. Vibration-resistant. Corrosion-free.

COSMO® adhesive and sealant systems enable durable, elastic and permanently sealed butt joint connections in professional vehicle and shipbuilding — providing structural stability and reliable sealing in a single process step.

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Adhesives for Butt Joint Bonding

Bonding and Sealing in One System

Butt joints occur wherever components or sandwich panels meet — for example in wall, roof or floor elements.

Mechanical fasteners or sealants alone often lead to:

Leakage caused by material movement
Stress cracks in the joint area
Corrosion risks due to component penetration
Extensive rework
Visually inconsistent joint appearance

Structural butt joint bonding provides clear advantages:

✔ Permanent sealing and bonding
✔ Elastic stress compensation
✔ No corrosion points
✔ Uniform joint appearance
✔ Suitable for series production and custom manufacturing

Typical Challenges in Butt Joint Applications

Different material combinations
Continuous vibration during vehicle or ship operation
Temperature and moisture fluctuations
UV and weather exposure in exterior areas
High requirements for elasticity and sealing performance
Fire protection requirements in interior applications

COSMO® systems are specifically developed to meet these challenges.

Suitable Material Combinations

Our adhesive and sealant systems are suitable for applications such as:

Elastic MS Hybrid Adhesives

For Permanently Elastic and Sealing Butt Joints

MS hybrid adhesives are ideal when structural bonding and flexible sealing must be combined.

1-C-MS-Adhesive COSMO® HD-100.400

The multi-talent

Elastic, stress-compensating bond line
Broad material compatibility
Proven in vehicle and shipbuilding

Details

MS-Hybrid-Assembly-Adhesive COSMO HD-100.800

MS adhesive COSMO® HD-100.800

The fast high-tack / first-tack solution

Very high initial adhesion
Ideal for fast assembly processes
Proven in roof angle bonding applications

Details

2-component STP-assembly adhesive COSMO HD-200.101

2-component MS adhesive COSMO® HD-200.101

The controlled one

2-component MS adhesive
Fast, controlled curing
Ideal for series production with defined cycle times

Details

High-strength PU adhesives for gluing roof angles

Structural PUR Adhesives

For Highly Load-Bearing Butt Joints

When a load-bearing or high-strength connection is required, PUR adhesives are used.

COSMO PU-200.180 2-part PUR surface adhesive

PU adhesive COSMO® PU-200.180

The versatile all-rounder

Very high bond strength
Permanent load-bearing connection
High resistance under dynamic loads

Details

Reliable Adhesion Starts with Surface Preparation

Proper surface preparation is essential for the quality and durability of butt joint bonding.

Activator COSMO® CL-310.110

The adhesion enhancer

Cleans and activates the bonding surface
Improves adhesion to PVC, ABS, PC, GRP, as well as powder-coated surfaces
Suitable for smooth, non-absorbent and porous substrates

Details

Optimize Your Butt Joint Bonding Process

Are you planning a butt joint bonding project in the transportation or marine sector?

Our application engineers support you with:

Selection of the appropriate adhesive and sealant system
Evaluation of your material combination
Definition of optimal process parameters
Implementation in series production or custom manufacturing

Bonding applications Transportation & Marine

Do you have questions?
Our Consultants:

Hans-Jürgen Sieber
Tel.: +49 (0) 2773/815-274 - Email

More information

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Adhesives & Sealants

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With all its building-physical and economic advantages, the façade element is the preferred building component for commercial and functional buildings. Our façade elements have proved to be successful for many years with their excellent heat and noise insulating characteristics in famous buildings of European architecture. » MORE