Continued work on the Doors Gas Strut Attach Doubler. First I mixed CAB-O-SIL into resin. My first time to mix resin and cab-o-sil. It's an extremely light powder used as a resin thickener. The plans said about 2 fluid ounces would be needed (I mixed 3 oz. and had plenty to spare). Then used 80 grit sandpaper to roughen the mating surfaces before spreading about 1/16th inch of resin mix onto the doubler and clecoing it into position. I used a small chip brush to spread it out. I'll let it cure before re-drilling the holes and doing the final riveting. Update May 03, 2023: Cleaned and drilled the holes then did the final riveting.