Ang Pag-Masilya (the act of puttying)

PROBLEM: In recent years there has been a new trend that I have observed being done by some painters & that is using Polituff body filler as a putty to putty down masonry (cemento) walls. The act of "minamasilya or mamasilya" is done to smoothen out minor wall imperfections so that your walls come out perfectly even & smooth. Actually I wasn't just an observer but I experienced this first hand. When I was repainting my daughters room, I hired this supposedly very experienced painter recommended to me by one of my contractor customers. When he gave me the list of items he needed, kasama doon yung Polituff Body Filler which is a putty used for automobiles. So I asked him, "Manong bat may Polituff dito sa order mo, eh di naman kotse yung papapintura ko ah?" And he answered "Yan na ang ginagamit namin ngayon, mabilis matuyo at matibay pa". Hearing this, I don't know why but it actually made sense since Polituff Body Filler is a 2 component system that comes with a hardener which when combined with the main mixture forms a tough putty, I didn't question him anymore and accepted his recommendation since I was rushing the whole repainting project. At sino ba naman ang aangal pag narinig ang mga salitang mabilis at matibay diba? So off he went, he finished everything in record time. Maganda naman yung wall, wala naman naging problema. Fast forward 6 months later, huge blotches now covered my daughters walls, all in the shape & color (dark pink) of the putty the painters used, puro mapa (maps) ang nakikita namin. Ang pangit talaga. In the end I had to hire another painter to fix this rush job, it was really a waste of time & money.
ANSWER: After what happened, I realized that Polituff was really meant to be used only for metal surfaces and was not suitable at all for masonry walls. Add to the fact that water based paints (latex) are normally used when painting these cemented walls, it's no wonder that the Polituff acted as if it leaked through since the chemical makeup of Polituff was probably too "matapang" for these water based paints to handle. Since this happened a few years back, I should note that at the time when I did my repainting project, the way our local painters do their masilya is by using Patching compound (a white powder like substance made from volcanic sand) mixed with enough paint to form a thick putty, in other words mano-mano sila. Polituff was probably used because it was already pre-mixed & dried fast - so in essence "tinamad si manong mag timpla ng masilya". But nowadays painters are veering away from this HUGE mistake in improper priming procedure with the introduction of products like Boysen Masonry Putty which is already pre-mixed & dries fully in 2 hours plus the cost is almost half that of Polituff, you basically use it straight out of the container. So now you can bet that I always warn homeowners whose painters order latex paint & Polituff at the same time. Don't make the same mistake I did.