Inquiry (采购产品): Q75-2500 sound deadner I have been purchasing Q75-2500 to sound deaden underside of stainless steel countertops and tables. We have CRS hat channel on underside also as support. For the first time I'm having problem with rust forming on the channel after being sprayed with the sound deadner. No where on your can does it say to prime first or any prep that needs to done before spraying. Can you tell me what the problems is. **** Hidden Message ***** Carisa Buff 29209 Company: Anchor E-mail: anchorindinc@aol.com **** Hidden Message ***** anchorindinc@aol.com
