Went to Lowe's (I know, should have gone to a paint store) and asked for
caulk for my new (hardei plank) outside siding. They advised me to buy GE
"Window & Door" 100% Silicone Sealant. After having applied 5 tubes of this
stuff around all window trim, door trim, hardie plank edges etc. etc., I
find that paint does not stick to silicone. Did not know that!!! I've
painted the caulked seams 6 times already and the paint just retracts from
the silicone in about 5-10 seconds.

I can live with the above on all the vertical trim seams, but, on the butt
joints of the hardie plank, in the middle of the wall, the white blotches
look pretty ridiculous.

Any advise appreciated. You're welcome to call me a fool etc., but please
advise.

Thanks,

Ivan Vegvary