8oz Polyester Pretreatment

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8oz of Polyester Pretreatment for White and Light Polyester Shirts Poly PreTreatment is specially formulated to work with textile ink and polyester and poly-blend fabrics. Mixed Re sults when using this pretreatment to print with white ink. Polypretreatment is for printing primarily with CMYK on light to white shirts. *You have to do some wash testing on all printed poly and poly blend garments prior to selling because the blend and composition of different brands vary. This is an example of how a dark polyester shirt printed with DuPont ink could come out after you wash it. Show more