Screen Ink Discharge Additive helps achieve bright, vibrant screened colors on dyed dark fabrics without laying down an undercoat of white ink. Simply add to screen ink, screen and steam. This process helps retain a softer hand on fabric than is achievable with multiple layers of ink and reduces the amount of screening necessary. Works only on dyed fabrics. We recommend testing to ensure that the dye used in your fabric is dischargeable. CAUTION: Can cause irritation and gastric disturbance if inhaled or ingested. Use in a well ventilated area. Keep away from children. Made in USA.