Researchers have created a sustainable adhesive made from used cooking oil that’s strong enough to hold up hundreds of pounds of weight. The glue is made from waste cooking oil converted into recyclable plastics with exceptional strength. This process turns nonedible waste into useful polymers, offering an environmentally friendly alternative to petroleum-based plastics. The adhesive has been tested and proven to be stronger than commercially available adhesives, making it suitable for applications in packaging, automotive components, medical devices, and electronics.
Source: https://www.livescience.com/chemistry/glue-strong-enough-to-tow-a-car-made-from-used-cooking-oil