Sorry for the bother, could you please re.-confirm the spray for curtains including approximately the coverage per it really and the cost ? Thank you for your help Kind Regards Corrado
Hydron Nu-Flame Synthetic & Fabric Protector, Envirograf 3-2-1 Standard Fire Retardant Liquid and Bollom Flamebar PE6 all mention curtains as a suitable substrate. Estimated coverage rates can be found in the Technical Data Sheet for each product available to download from the 'Attachments' tab on each product page.