as for the baking soda, I figured what the heck, did a small batch, you never know how something is going to react, kill the resin, foam up, etc.
It does not give up Co2, doesn’t melt, stay’s a very small particle that is extremely easy to sand, not like cabosil, which hardens up to granite like structure, as good as micro balloons and can be gotten at midnight at the 7/11, that fit’s all the parameters any one could need.
I took the pig to Otis Schaper’s Chronic factory, he and Carl worked for me in Fla., he said the shop is yours, I grabbed a sander with # 150 on it and started in on the worst places, that shatters fall right out if you treat then gently. With a pot of acetone in one hand and a sanding block with # 50 in the other, it was wipe down, see what was still F-d up and blocksand some more, I was on it seriously for about an hour and a half, maybe more. At this point it was solar hotcoat and get another good look-see at what I missed, blocked those places until there were no more shatters/split rail.
Being a clear volan was a hurdle, but I cut cloth as close to the size of the well sanded areas, used solar, inside I had as much time as needed to get it looking right, in several sections I had to built up to 3 staggered layers, it looked good, out to the sun. Right back inside and hit the high spots with the sander, went back to the block and feathered away, hit a hotcoat again and resanded that for the gloss, Only taped the center of the rail, free brushed the top lines to keep from getting a hard edge from tape. Got as far as top gloss, came back in the morning, shot the bottom, put it out in the sun, killed about 2 hours, then started with a block and #320, feathered from the patch out onto the original gloss, go the other way and you’ll sand through the original. I was out in the blazing Wahiawa sun, so I’d wipe it down every minute to see the progress, there were places I had glossed over shine and carefully blocked those areas in, got it looking the way I wanted, some used # 600 by hand and a few minutes of a slow speed machine work brought it back to 98 % of what it was before I DROPPED it. I did the right thing, fessed up to what I had done and repaired it to as close to new as humanly possible, hmmmmm, wonder if I’ll be able to borrow boards next time ???