Thanks for the response. I am sure that they are in the gel. My experience is fiberglass takes a lot of compression but minimal tension. These spider cracks are typical of the ones you would see on fiberglass in areas of twist (ie: around mirror attachments, etc). My car was bumped in the nose that broke are area around the air inlet area for the
oil cooler. Some of the adjacient area has these spider cracks from the nose being flexed. Years ago I painted a Corvette that had spider stress cracks and there was an epoxy primer product that went on very thin. Capillary action drew it into the cracks and reknitted the cracks. They never came back. I looked for this product and it appears to be a thing of the past. I remember it had a lot of cautions on the label so it most likely was not good for the environment or humans!