Permatex 84145 Permapoxy Black Plastic Weld
Permatex bills their plastic epoxy as a "structural adhesive", a title which can actually be used with all epoxies. The difference here though is that they intend for their product to be used in structural applications, especially when plastics need to be bonded to other structural materials. This epoxy not only bonds to all common plastics hard and soft, but also to common architectural materials such as ceramics, wood, and composites. The mixed adhesives sets in 5 to 6 minutes and is fully cured to a "fixturing" point in 9 to 10 minutes. You can use this epoxy for gap filling up to 1/8" and it has good water resistance and chemical resistance. Cured strength is 3500 PSI and the color is black.