Pad printing ink hardeners are cross-linkers that increase ink-film abrasion resistance and enhance durability. Catalysts are also known as hardeners for pad printing inks. We add hardeners to printing ink to enhance its resistance to wear and tear, and in some cases, to withstand chemical and weather elements. Ink hardeners are critical additives and are important in handling ink adjustments for better adhesion and image life.
Different inks use different hardeners; both ink and hardener must be chemically compatible. It is therefore very important to match screen- or pad-printing ink with the right ink hardener.
