In this research, to control the decay of the hydrophobicity during washing, three categories of compounds have been used: crosslinking agents (dimethyloldihydroxyethyleneurea(DMDHEU), maleic acid (MA), and itaconic acid (IA), and diisocyanates), extenders (e.g. lauryl acrylate and lauryl methacrylate) and booster. Additive agent, called "booster", was synthesized by blocking isocyanate groups in hexamethylene diisocyanate with sodium bisulfate and its performance on the fabric wa compared to comparable commercial sample (Evo gard XL).The total additives and crosslinking agents were added to conventional fluorocarbon components and then, their repellency properties were compared to a LAD ( Laundry/ Air Dry) fluorocarbon agent. Different methods of applying each additive and crosslinking agent into fabric with fluorocarbon were studied and appropriate application methods were selected.