SpeedCure ITX

SpeedCure ITX by Lambson (Sartomer) is a mixture of 2-isopropylthioxanthone and 4-isopropylthioxanthone. Acts as a highly efficient photoinitiator. When used in conjunction with tertiary amine synergists, it induces the rapid photo-polymerization of suitable resin formulations. Has good solubility in most common organic solvents & UV curable monomers, and Speedcure BEDB (~ 30% w/v at ambient temperature). UV absorption spectrum shows two major absorption bands. Allows possibility of producing a single liquid additive comprising both initiator and synergist. Can act as an efficient long wave sensitiser for Type I and Type II photoinitiators. Absorption at 258 nm promotes surface cure of films and at 383 nm promotes excellent depth cure in pigmented and thick films. SpeedCure ITX is suitable for wood varnishes, printing inks, decorative coatings for metal cans & food cartons. Suggested levels of use are 0.25-3% w/w Speedcure ITX together with 2 – 5% w/w amine synergist such as Speedcure EDB or DMB (quantities vary depending on individual formulations and applications).