Called National Fireproofing Co with some questions before I purchased their fire retardant. The person I spoke to was very knowledgeable and patient with me answering some of what I thought were dumb questions. Nevertheless, he told me what I needed to pass fire code and it was an easy application. Best of all, it was the lowest price I found online for this type of product which worked very well on our drapes and wooden blinds.
National Fireproofing Supply Company