- Panels: 16" x 48" GRP shower surround material from Home Depot. Since I use this for many other projects around the boat (window covers, wire guards, small fabrications), this is just scrap.
- Floats: 2" x 60" PVC pipe with the ends capped.
My test panels are actually for an article on cleaning method (one is not cleaned, and others will be cleaned using different sorts of scrubbers), but this is the basic paint testing set-up.
I would not bother in seawater--the Practical Sailor tests should be good--but in the upper Chesapeake Bay, for example, this seems obvious.