Welcome to Siltech Sterilization indicator, Steam sterilization indicator, Temperature indicator label, Irreversible temperature indicator, Heat indicator label, UV absorbing lacquer, UV blocking lacquer, Tamper evidence ink, Brand security label, , Brand protection label, laser sensitive, laser coding, ink jet alternative, thermal alternative, specialist inks, Siltech - Industry leaders in ink jet and direct thermal print alternatives. We manufacture Laser coding inks, thermal colour change inks, surface modification lacquers and varnishes and volume change inks. We also have a world leading range of sterilisation indicators for dry and wet steam, gamma radiation and EtO sterilsation.