Old glue bomb kit, what went wrong?

[Carmak]

On 1/10/2025 at 6:22 PM, Keef said:

Freshly opened kit just for pics. I’m leaning towards it being a resin repop as well.

Thanks for the pics, Keith! I am now fairly sure that is resin. Look at the difference between the interior posts on the kit and the posts on the failed body. Also look at the flash around the inside of the taillight opening. Essentially no flash on the kit.

Two part hand mixed resins are chemically quite different than thermoplastics like ABS and Styrene. Cast two part resin can often have internal porosity (micro voids) that can create weak spots. The failed body looks to have visible porosity issues.