Easy-Lease?

[herman]

pre release: distortion of the part due to the part releasing from the mould while being produced.

For instance the gelcoat and skincoat go into the mould. The release agent is so slippery that the shrinkage of the skincoat is already enough to have the part partially release from the mould. So the part is not accurately to the mould.

[Anthony]

Ah, ok. Good info! I didn’t know that was a thing that happens. I suppose this would be more likely to happen the bigger the part is.

[herman]

It happens mostly in corners.