[mickmate]

Start with a good roughed up edge that bevels back into the parent material. That way it will bond and have good strength at the joint. If you have a larger gap to fill in stick a piece of cardboard across it to back it. Seran wrap is one way to non-stick it, wax paper works too. Ask the guys at the body shop supply for a good quality low shrink resin. Overlap the edges of the cloth patch across your bevelled edges and build it up a layer at a time. Be sure to allow cure time per instructions, temp etc. It's a little stinky and messy but other than that very easy to work with. Don't use mothers scissors on the mat, it takes the edge right off them. You'll be fine, get on with it!