Hello. I bought a tack rag for removing the dust from my planes before covering and I now have the wax or whatever it is on the tack rag stuck on my framework. What did I do wrong? I have read in many books that suggest to use a tack rag on our models. How can I remove this? Will this ruin the covering? What is the best way to remove dust and clean the balsa for covering? Thanks for your input.