But you are correct that it is very difficult to paint.
Best exterior caulk for cement siding.
Butyl rubber is sometimes recommended for exterior siding since it s a specialty outdoor caulk that can withstand changes in temperature and repeated exposure to the elements but you can choose any exterior caulk that will bond to your siding just make sure to read the labels and spot check on an unseen portion of your siding to make sure.
Although there are different kinds of exterior caulk available in the market for different kinds of surfaces and uses here are the ten best exterior caulk that you can choose from.
When using silicone caulk that can t be painted choose a color that most closely matches the surrounding area or select clear for an unobtrusive look.
Use when installing bath fixtures to seal gaps between shower tiles between sinks and counters and around the base of the toilet.
801 caulk 10 1 oz by dap best exterior caulk for hardiplank siding.
Use around sinks tubs and showers.
Sashco big stretch acrylic latex high performance caulking sealant.
Because latex and some silicone caulk will take paint you can use white caulk and paint it to match any place you re using it.
Paintable silicone caulk can be used around the outside of window units to properly seal the window and the siding edge or around the entire door unit.
So what i would tell you to do is to use a colored caulk to choose the caulk in the color of the siding.
All weather window door max shield by ge sealants and adhesive best caulking for hardie board siding in budget.