New dacron sail, want to remove bug stains before the season. Suggestions? Sailbrite Sail Cleaner, hydrogen peroxide? Diluted dish soap?
Yes ... and at the same time no.OxiClean makes chemical sense for stain removal, but it’s not always the best choice. If your sail has brightly colored insignias or lettering, a gentler cleaner may be safer.
OxiClean’s active ingredient is sodium percarbonate, which dissolves in water to form hydrogen peroxide and sodium carbonate. The sodium carbonate raises the pH to around 11, helping loosen and break down stains. Adding a small amount of detergent further helps dissolve lipid‑based stains. The hydrogen peroxide breaks down into free radicals, which are strong oxidizers that disrupt pi-bonds in chlorophores (color producing compounds) and cause stains (especially tannins from leaves or wood and other biological stains) to fade. Unfortunately, this same process can also fade colored insignias or emblems on your sail.
If color preservation is important, Woolite might be a better option. Its active ingredients (sodium laureth sulfate, alcohol ethoxylates (C10-16), and sodium alkyl benzenesulfonates) are mild surfactants. They do not create high alkalinity or release oxidizing radicals, and they are specifically formulated to avoid attacking color-producing pigments.
If your sail has both stubborn biological stains and areas with bright colors, you can selectively clean different sections using different products.
I have read (on here I think) that white vinegar and a brush are effective against mildew stains. I have not tried it so I can't recommend.
The last time I cleaned a sail I rolled the sail, placed it in a clean 60‑gallon trash can, filled the can with water and a bottle of Woolite, and let it soak overnight. The next day, I laid the sail out on the patio and rinsed it thoroughly with a hose.
lots of effective options already. Equally if not more important is timing. Rather than cleaning “before” the season, do it AFTER the season so as to avoid letting stains set in storage all winter. Often easier to remove recent stains than old ones.New dacron sail, want to remove bug stains before the season.