Can this 'liquid plastic' fix anything?

Can this internet-famous gadget fix anything? We tried it to find out.

If I have a half broken plastic, what is the best method of

Plast-Aid Plastic Repair Glue/Epoxy 6oz

Bondic Liquid Plastic Welder

Bondic UV Cure Starter Kit Complete

Bondic® - It's Not a Glue

Bondic Starter kit - Fluid plastic that hardens in UV-light

New, Fix, bond, fill, repair plastic, metals, wood, rubber, Pvc, wire, holes, ceramic, glasses, jewelry, toys in 5 easy steps. May not work well with

Visbella UV Light Glue Liquid Plastic Welder Adhesive with Alcohol Pad Fill Bond, Fix Repair Almost Anything in seconds, Include Refill, 12 g

Bondic As Seen On TV

Using Bondic Plastic Welder (Glue)

LED UV #1 Liquid Plastic Welder With Bonus Refill Twin Pack

lagfly Magic Fix super power fixing compound - fix weld repair

While out fishing things can break at inconvenient times. Tape rarely does the trick when a quick repair is needed. Traditional adhesives and glues

FlashFix Liquid Plastic Adhesive Kit