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install tool for bespoke caulking

August 14, 2026 · Green Building Advisor · Score: 28

This is a homeowner forum question, not really industry news, but it touches on a common siding and trim problem: getting caulk to match an odd exterior color. One homeowner found that a 3:1 blend of two off-the-shelf caulk colors matched their siding and flashing almost exactly, but no premixed tube comes close. They asked whether a tool exists for loading custom-mixed caulk, rather than piping it from a plastic bag like frosting or laying down clear caulk and painting over it.

Other readers pointed to a couple of options. One is a product called Create-A-Color Caulk, made by Red Devil, which lets you tint a tube yourself. There are also some companies that will custom-mix a tube of caulk to match a paint color, though the original poster didn't have a local source for that service. Searching for "bulk sealant applicator" turned up gear meant for loading caulk guns with your own mixed sealant rather than a prefilled cartridge.

For anyone dealing with mismatched caulk around siding, trim, or flashing, the takeaway is that mixing two stock colors to get a close match is a real, workable approach, and there are tools and tinting products built for exactly that. Painting over caulk is the other route, but the homeowner in this thread was wary of paint flaking off caulk over time from sun and temperature swings, and that concern was left unresolved.

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