Additives & Catalysts

3M Process Color Series 990 is transparent (except for 990 05 black which is opaque), screen printable, and dries quickly. They are recommended and intended for use on 3M Engineer Grade Reflective Sheeting Series 3200.

3M Process Color Series 990 is transparent (except for 990 05 black which is opaque), screen printable, and dries quickly. They are recommended and intended for use on 3M Engineer Grade Reflective Sheeting Series 3200.

For screen processing copy or background on signs made with 3M Diamond Grade, High Intensity Prismatic or Engineer Grade Prismatic Reflective Sheeting.