Q. I have heard that a piece of tape (10 tefachim long) attached to a post can be used as a lechi to resolve the min hatzad problem. Can you also use thick paint that can be pealed off?

A. Mishna Berura O.C. 363,26 writes that paint that does not have any substance to it (unlike the lime white-wash quoted in Remah ibid.7) cannot be used for a lechi.(see also Tashbatz 2,34).

Horav Shlomo Miller Shlit’a recommends that if paint is used, a thick double coating that shows substance be advised. Care should also be taken to inspect it from time to time to ascertain that the paint has not peeled off.

Rabbi A. Bartfeld as revised by Horav Shlomo Miller Shlit”a