True Blue is an Excalibur 500 Series ink, they are highly versatile and can formulated for direct or cold peel heat transfer screen printing. Theses inks have good opacity and direct prints have a soft hand finish. 500 Series Plastisol Inks are ideal for high speed automatic presses and can also be used for manual presses. 500 Series Plastisol Inks are formulated to minimize build up which allows for easier garment screen printing. 500 Series inks can be used on 100% cotton and most cotton blends. They can be printed with 550 series as well.