LOCTITE structural adhesives based on polyurethane technology are best for long-lasting applications. They work well on all substrates and are typically seen as structural bonders but are very versatile. They can be used to replace rivets, welds, and bond windshields to vehicles. They come in 1-component and 2-component systems.
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1-component polyurethanes react with moisture and require a bondline for atmospheric moisture to penetrate and form a crosslinked and flexible thermoset plastic. Once the pre-polymer reacts with moisture, polyurea and CO2 is outgassed. This foaming provides multiple benefits like reduced adhesive consumption and acts as internal structures such as in garage doors that are rolled or stamped sheet metals.
2-component polyurethanes rely on a combination of isocyanates with polyols. Isocyanates react with polyol to form a thermoset polymer. Polyols provide long, flexible, and highly crosslinked chains leading to high elongation and high cohesive strength.
Direct glazing to fix the glass in metal frame
Bond and seal plastic panel joints
Honeycomb panel bonding on uncoated or powder coated surface
Bonding panels, walls, floors, and roofs for caravans, trucks body, elevators, etc.
An equipment cabin windshield manufacturer met the required production increase using LOCTITE.Know More
An elevator door manufacturer increased the reliability of their elevator doors with LOCTITE.Know More
Epoxies: LOCTITE Structural adhesives based on epoxy technology bond multiple substrates providing high shear strength.
LOCTITE Structural adhesives based on acrylic technology bond multiple substrates and provide a rigid to slightly flexible bond.
LOCTITE Structural adhesives based on silane-modified polymer technology are designed for elastic seam and joint sealing and bonding of most metals and plastics.
LOCTITE Structural adhesives based on hybrid technology combine the strength of epoxies with the speed of cyanoacrylates. These universal bonders ensure substrate versatility, cure faster and have high strength.
Learn how LOCTITE Structural Bonding solutions can help you in achieving reliable results with maximum strength.
Talk to our expert for first-hand information for achieving reliable results with LOCTITE Structural Bonding solutions.
LOCTITE structural adhesives have been proven to be able to take almost as much load as overlap welding and that too at only half the cost. LOCTITE adhesive also offer other advantages like making the process simple, and providing sealing along with bonding.
While double sided adhesive tapes are not messy, their application process is definitely very long and complicated – what with the need to cut to specific dimensions and expensive activators. LOCTITE adhesives are mostly applied through static mixers that ensures precise application without any mess.
There are many suitable LOCTITE structural adhesives based on acrylic, epoxy, modified silane and hybrid technologies that would be ideal for bonding polypropylene. Drop a query to our LOCTITE experts with the specifics of the application requirement and they will be able to recommend the right solution.
Rivets offer the advantage of instant assembly, however result into concerns of reliability because of uneven stress concentrate points that become fatigue and failure points and also lead to corrosion. Instead, LOCTITE structural adhesives offer better reliability and come in various cure types which can be further accelerated with the help of activators.
Yes, LOCTITE structural adhesives have been designed to withstand heavy loads under various ambient conditions. Especially, LOCTITE structural adhesives based on modified silane technology which cure in the presence of humidity, are excellent for outside applications where high temperature, UV resistance etc. features are preferred.
LOCTITE structural adhesives based on acrylic, epoxy, modified silane technology and hybrids are excellent for bonding rubber to metal. Drop a query to our LOCTITE experts with the specifics of the application requirement and they will be able to recommend the right solution.
Yes, bonding dissimilar substrates like glass to metal or even glass to glass is possible with LOCTITE adhesives. If optical clarity and aesthetics is a must, choose clear epoxies like LOCTITE E-30 CL. Otherwise LOCTITE acrylics are also a great choice for bonding glass to metal or glass to glass. Prefer modified silanes if glass has to be fixed to a metallic frame. Drop a query to our LOCTITE experts with the specifics of the application requirement and they will be able to recommend the right solution.
Removal of dirt, dust or other surface impurities from the surfaces to be bonded is important before adhesive application as they can interfere with the effectiveness of the bond strength. This can be achieved through either degreasing or abrasion. Chemical treatments like primers, corona discharge, flame and plasma treatments can also be used to modify the surface properties to further enhance bond strength.
Open time is the time within which parts should be assembled post application of the adhesive to ensure proper surface wetting and achieve maximum strength.
This term is relevant for adhesives where activator is used on one of the parts. On-part life is the time within which activator or primer provides full performance.
Fixture time of an adhesive is the time needed to achieve enough strength to hold the parts together without additional support or to achieve lap shear strength of 0.1 N/mm2 whereas full cure time of an adhesive is the time needed to achieve full performance.
Combination of two different adhesive technologies, which are normally stand-alone technologies and at the outset cannot be manually mixed. A Hybrid combines the positive attributes of both technologies which provides new performance parameter. LOCTITE Hybrid adhesives combine the speed of cyanoacrylates (commonly known as instant adhesives) with the strength of epoxies/acrylates to give universal that can bond anything in seconds providing high strength.
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