Automotive Adhesives

Automotive Adhesives & Sealants

Automotive adhesives & sealants deliver a lightweight method of joining plastic and composite parts. Indeed, by replacing mechanical fasteners with adhesives, automotive component manufacturers can achieve a great deal. This includes a lighter component weight, a cleaner and more streamlined finish, as well as improved stress distribution and component performance. They also allow for access to a wider variety of composite materials, thus increasing choice for manufacturers. 

A clear example of where automotive adhesives outshine mechanical fasteners is in the high-performance cars industry. One of the key focuses in this industry is minimizing the weight of vehicles to maximize performance. Manufacturers, therefore, tend to use lightweight composite materials to achieve this; however, welding these materials isn’t possible. The use of mechanical fasteners adds to the vehicle’s weight, is unsightly, and increases the risk of parts vibrating loose. . 

Structural adhesives are a favorite among automotive industry professionals, as they allow different types of materials to be joined together easily (such as composites to metals, where welding would not be suitable). An added advantage is the rubber toughening present in structural adhesives, which helps absorb vibration and impact forces.

With these benefits in mind, the use of automotive adhesives & sealants is now widespread. They can cover something as small as a sensor to something as large as a vehicle chassis. They provide solutions for bonding both internal and external car parts and are thus in high demand across the industry. 

Where automotive adhesives and sealants are used

Permabond offers an extensive range of automotive adhesive and sealant products suitable for under-bonnet applications, including formed-in-place gaskets, adhesives for core plug sealing, automotive hose bonding, heat exchanger sealing, and filter end cap bonding. Electronic systems within the car also make use of many adhesives – such as potting and sealing electrical components, sensors, switches and relays, bonding electric motors, and a whole host of other applications. Permabond supplies automotive adhesives worldwide, with many products specified by leading vehicle manufacturers and Tier 1 automotive suppliers, who enjoy high-quality cutting-edge products at very competitive prices.

Typical Applications:

• Structural bonding of drive shaft and chassis
• Sealing heat exchanger tubes
• Bonding interior dashboard and trim
• Gearbox and sump cover gasketing
• Potting and sealing of electronics and LEDs
• Threadlocking and retaining bolts, pins, and bearings
• Bonding of sensors

Key features of automotive adhesives from Permabond

Permabond’s automotive adhesives and sealants are engineered for the extreme conditions under the hood. Many are developed with high temperature resistance, including anaerobic, epoxies, and cyanoacrylates which can withstand temperatures of up to 250 deg C (480 deg F).

Structural products are available with rubber toughening to produce high strength, durable bonds, which are able to withstand the harsh conditions and vibration experienced on many under-maintained roads!

Permabond’s potting adhesives for electronics are very popular due to the slight flexibility of these products. Expansion and contraction of electrical components, sensors, or LEDs in the extremes of temperature need not be cause for concern, as the adhesive will flex and continue to maintain a high strength bond or seal without exerting any stress on these sensitive components.