One problem: good luck finding the respirator cartridges in the time of COVID19. I haven't seen any available anywhere: not sure what I'm going to do this year.I'm going to be sanding and applying bottom paint this weekend for the first time and one of the requirements at my yard is dustless sanding equipment. They don't have any specifics listed, just dustless. As such I have two options for dust extraction that I'd like to see if anyone has thoughts on:
Both options will involve me using my dewalt 20v max random orbital sander as its the only sander I have with a dust collection port. I'll use this with an 80 grit abranet pad. I of course will use a respirator with appropriate cartridges, eye protection, and will likely wear a tyvek suit for both sanding and painting.
Option 1: hook the sander up to my 2.5 gallon shop vac that I dont care about and throw away the filter bag when I'm done
Option 2: I'm a project manager at a general contractor and just todaypurchased some new festool ct26 extractors for my finish guys. I could take one of these down to the yard and connect it to my sander, however I'm somewhat apprehensive about filling a brand new dust extractor for my carpenters with blue bottom paint. Does anyone have experience with how bad this will clog up the filters and how easily it'll come out of the extractor?
Thanks in advance for the advice
After one disastrous experience with bottom paint not adhering correctly, which required 100% removal, I always scuff sand with course sandpaper. Just enough to put some scratches for the new paint to adhere to. I usually use a small hand sander along the waterline, followed by a quick sanding of the remaining 95% with a pole sander. Last time, I used water-based ablative (Petit eco-hydrocoat) on top of non-water-based (Interlux Micron CSC), and had no problem.