Left image shows part after pulling it from the oven. Dimples in foreground are spot areas where resin has soakcd through the breather. Final part is on right image. This part is approximately 22" wide x 60" long.   The dry fiberglass, before wetting out, weighed 4.77 lbs. After laminating the part, it weighs 5.6 lbs. Resin content by weight of the final part was 16.137%. A breakdown of data is shown below.   dry fiberglass - 2162 grams resin used for wetting out - 922 grams resin left in part after vacuuming - 416 grams Final Resin Content by Weight: 416/2578 = 16.137%     To learn why an oven is an important part of advanced composite fabrication, please click here.