Paul is there an inherent difference between a gray vs a black tub? does the "virgin" material hold up better than the recycled etc?
That's the million dollar question...... literally. We make pallets and large bulk containers. Ensuring the quality of the recycled material is difficult.
Recycled plastic is not necessarily bad, it is the number of times it has been "re-processed that is the problem". Contamination can be a problem too. In the case of HDPE Structural Foam containers, impact performance is usually the first mechanical property to go, then sometimes you will see creep (deformation under load).
Bottom line, inspect any molded product you get (virgin plastic can have a defect too) Inspect the gate areas, if something was too hot, you can have a thin spot, or a brittle area around the gate. Also check the knit lines......an area where plastic joins together when filling the mold. Also check for wrinkles an bubbles.