Not your average super glue, this automotive adhesive is mechanic tested and recommended.
Fastening automotive plastics
Although I don’t like jerry-rigging repairs, sometimes whether it’s because you can’t find the spare part you need, the expense is too high, or you’re on the road and need repairs. A quick fix, using a super glue-type adhesive to fix a broken plastic part at least temporarily is sometimes acceptable.
However, molded automotive plastics designed to withstand high temperatures and chemical corrosion are not the same type of plastics used in other items you normally repair around the house with generic or brand name superglue for to do work.
Some of the more common plastics you’ll find in cars include:
Polypropylene—a thermoplastic polymer that is easily fabricated into almost any shape. It is both chemical and heat resistant to a high degree (see what I did there) and holds up to high impact forces such as those found in car bumpers . It is also a good inexpensive plastic for vehicle carpet fibers.
Polyvinyl chloride (PVC) – a malleable flame retardant plastic often used in dashboards and automotive body parts.
polycarbonate— is another impact-resistant plastic used not only in bumpers but also in headlights. Another characteristic of this plastic is that it is light and very resistant to 4 seasons weather.
Acrylonitrile butadiene styrene (ABS)—is similar to PVC in that the end product provides a sleek finish and is typically used in steering wheel covers and dashboards. It also has the property of absorbing and redistributing energy during an impact, offering the driver and passengers some protection during an accident.
The proof is in the putty
The point of listing some of the types of plastics used in cars is to provide an appreciation that when it comes to adhesives, it’s really about the chemistry of the adhesive and the surfaces to be bonded. In other words, not all plastics are the same and therefore not all chemical adhesives will work on the same plastics. Additionally, experience shows that where an adhesive label states that superglue will work on a range of listed materials, it does not work equally well with all listed materials.
This is where I like to say (and recommend) the proof is in the putty. In other words, just as you would use a cleaning product on a piece of test fabric to ensure that no damage will ensue, it is prudent to test any new adhesive on a used auto part of the same material as the broken piece to determine whether or not the adhesive will really work. You will also want to test the bonded test piece under similar real world conditions such as heat—a small pot of boiling water will often suffice in such a test.
No time (or desire) for tests?
That said, for those of us who don’t have the time or inclination to do our own testing, here’s a recent video of a trusted YouTube channel mechanic reporting that it’s his adhesive benchmark for automotive repairs. This is a sponsored video so do what you like with it, but it’s as good a source as any to be sure this is a reliable product.
Here is the video in its entirety.
LOCTITE HY4070 adhesive
For additional articles on car repair and maintenance, here are two selected popular articles titled “Car Maintenance 101: Changing the Headlights on a Prius” and “Maintaining Your Vehicle’s Automatic Transmission Can Be a DIY project that saves you money”.
TO BE CONTINUED: Consumer Reports 12 best new SUV deals for 2022
Timothy Boyer is a Cincinnati-based automotive reporter for Torque News. Experienced in early car restorations, he regularly restores older vehicles with engine modifications for better performance. Follow Tim on Twitter at @TimBoyerWrites for daily news on new and used vehicles.
Image source: Photo by Mart Production from Pexels