Epoxy fail?

[Jon Cole]

OK, I have never had epoxy fail to hold plastic. I made a part from some plastic I bought years ago from a hobby shop... but I don't know why the part wouldn't stay put? I scuffed up the surface. Are there some plastics that epoxy won't work on?

And... if epoxy won't work, what will?

[Guest arni]

Sounds more like a dodgy epoxy mix to me..Dont see why it shouldn't bond onto any material tbh..

[Jon Cole]

UPDATE- I am fairly certain the epoxy is not the culprit. I have used it on my current build, including the previous day without problem.

I suspect the plastic. It was purchased from a hobby shop many years ago. It is a medium dark grey, and somewhat glossy. What types of plastic besides styrene do hobby shops sell?

[ricky12]

If its gray in color i would bet its more of a pvc type plastic but as to what to use i would probley try superglue .

[Madd Trucker]

Are you useing the old Dark gray Plastruct strucural shapes if so I could never usue epoxy on it either had to use thier glue when Plastruct first came out it was an ABS PLASTIC

[E St. Kruiser50]

I have used this product for nearly ten years, and it sticks to everything I have used it on in my model building, including alum, brass pieces, and every paint and plastic I have used it on.

In my town I get it at a variety store or auto parts store.

It's made by Permatex, a well known company in the auto industry, so shouldn't be too difficult to find.