Can Faux abdobe finish as seen on Bob Vil'a Renovation Guide program used on a house in Arizona be applied directly over a painted stucco exterior? I want to put soemthing over my 90+ year old house which is stucco over poured concrete(12 inch thick walls) which will seal it and also be a substitute for paint. I have heard of a material called Thermoplastic. Is this the same as that used on the house shown in the program referred to above? Need recommendations.