The Epson Pre-Treatment Fluid is designed for use on polyester fabrics. Do not dilute for use on dark garments, and mix 1-to-6 with distilled water for use on light garments. Pre-treatment application to a garment is required prior to printing on polyester. It is recommended to use a pre-treatment machine to apply pre-treatment fluid for consistent print quality. Accessory Type: Garment Pretreatment Fluid; For Use With: Epson® SureColor® F2000, F2100.