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View Full Version : Current body work question...rigid or semi-rigid blocks at times?



Valkster
08-17-2025, 05:55 PM
Hey, all. I am working to be ready for primer in the very near future. I am on my own at this point as my wife and I just moved our college freshman son, Lucas, into his dorm this weekend. It was a bitter-sweet weekend, lol. He has been a great help and companion in the build over the last few years.
I have read several threads and YouTube videos to get "modern" with body prep tools and have used many of them. I have some Dura-Bloks thanks to Mr. Kleiner's build thread form years ago, some old-school semi rigid sanders (ie, planer-looking boards with a thin rubber pad under the sandpaper), and a rigid sanding block I made from 3/4" acrylic block. The latter is a DIY clone of some of the newer sanding blocks on the market and it seems to work really well for the edges of my second door and body door opening. This is my first attempt at using rigid blocks. I seem to get less dive-in at the edges of doors and openings with the rigid block than with the "Dura" blocks. It seems really awkward, however, for the body rolls and rounds.
I am just asking for a current update from you guys that do these cars often and those of you like me that have already done a one-off, as to preferences and opinions. I ask because using the rigid block I have found two huge low spots on both doors just left and right of a 3-4" wide "high" vertical section that I have filled with body filler in prep for priming. I did not see or feel these areas with the Dura-Bloks. I assume normally these low areas would be sanded to a nice transition after the three coats of high-build primer since I have not seen these low areas shown in posts from more recent years regarding the doors, but I am not sure.

Thanks for any insight, for me and those after me.
Mark

cdurbin328
08-18-2025, 06:01 AM
I'm not an expert by any means but what I did was buy rolls of different grit sandpaper with adhesive backing and then took a pool "noodle" and cut it to different lengths. Then I could stick the sandpaper to it and it would flex around the curves of the body for blocking. Worked perfect for me and it was super cheap.