What should you do to pre-preg material before starting the lay-up?

Letting pre-preg material warm up to room temperature is crucial for ensuring proper handling and performance during the lay-up process. Pre-preg materials are typically infused with a resin that is in a partially cured state and can become too stiff and difficult to manipulate when stored at lower temperatures. By allowing the material to reach room temperature, the resin becomes more pliable, which makes it easier to lay down accurately onto the mold or surface without risking damage or poor bonding.

This step is important not only for ease of handling but also to ensure that the material will cure properly when exposed to heat during the final curing process. Proper storage and handling of pre-preg materials contribute significantly to the quality and structural integrity of the final aerospace components being produced.