How are prepregs and adhesive film stored and handled?
Prepreg & adhesive films can be stored at room temperature for about 7 days, and up to 30 days in the refrigerator, or, it can be kept frozen at 0oF for up to one year. The prepregs and resins Carbon Express carries are b-staged epoxy resins (partially advanced thermosetting resins) which can react with water and be detrimental to the final part performance. Moisture present in the epoxy resin during cure can result in voids, depressed Tg and reduced mechanical performance. Freezer (0°F) or Refrigerator (40°F) Storage: For optimum performance and processability, prepreg should be stored and sealed in plastic to prevent moisture absorption during storage as well as when the product is brought out to stabilize to room temperature. Since condensation may form during this stabilization period, the sealed plastic barrier prevents the condensation from being absorbed by the prepreg. Do not remove the plastic from the prepreg until the material has equilibrated to room temperature and no cond
