Looks like theres only two after looking, thought there were more, one off of Sandy on the east side and another in Tigard close to the Home Depot. But now that I think about it theres a shop off of Cornelius pass in the strip mall like place across from the old Joe's. Spectrum Plastics if I remember right. Did some business with him a few years back, good dude total mom and pop kind of place. If he doesn't have it I'm sure he can get it. Goggle him up my guess is you'll be glad you did. Goggle fiber glass repair supply's while your at it and see what you get price wise.