Originally Posted by
aggiegrads
If I have to patch on a seam, I like using the Hozan rim sanding blocks. I find them to be a perfect size and grit for sanding tubes.
I’ve occasionally used an X-acto knife or similar to carefully “shave” down a raised seam prior to sanding and patching. I also bought an 8oz tub of glue, with a brush built into the tight-sealing screw top. I found that the little tubes were essentially one-shot deals as they inevitably dried out once they were unsealed. The big container hasn’t evaporated worth a damn in 3-4 years. Only cost ~$6 and will likely last many more years