I've just looked at a carpet that looks to be acrylic after a burns test,not had this before is there anything i need to look out for.Which pre-spray would you reccomend,i normally use traffic clean on nylons,ultrapac on polys,PB or PB with citra boost on mingers,pre-spray gold or PB on wool carpets and i have just added prochem pure clean to my armory.The carpet is a creamy almost white in colour with secondary backing.Cheers.