PHOTOINITIATORS

Photoinitiator is a substance that absorbs UV (Ultraviolet Rays) radiation and is directly involved in the production of free radicals necessary for polymerization of the UV coating paints. Which Photoinitiator to use depends on the application: clear, pigmented, high layer, base layer or surface cure in depth.

1173

Yellowish liquid with optimum solvency properties; this product is highly indicated for blending with other photoiniciators. It is used for UV resin, paint, varnish and adhesive healing. It is also used in clear and pigmented systems for surface healing of wood, plastics and metal.

6689/819

Light yellow crystalline solid, with low odor and volatility. Effective photoinitiator for UV-curable coatings, inks, adhesives, printing plates (graphics). Usually consumed in systems based on unsaturated polyester acrylates, in concentration weights ranging from 1% to 4%. In pigmented (colored) systems used for depth curing.

TPO

Light yellow crystalline solid, with low odor and deep healing. Effective photoinitiator for UV-curable coatings, inks, adhesives, printing plates (graphics), offset, flexography, screen printing. Usually consumed in systems based on unsaturated polyester acrylates in concentration weights ranging from 1% to 4%. In pigmented (colored) systems used for depth curing, also used for food tags.

TPOM

Blend of 819 and TPO, has characteristics of two with an intermediate cost between them. For it to be used, the product's formula has to be adjusted.

184

Crystalline white dust with low chances of yellowing and medium volatility. For Clear systems for wood, plastic or metal depth healing. Main use is in varnishes and as a photoinitiator in pigmented systems, especially indicated for outdoor applications.

Benzophenone

White flakes with low oxygen inhibition. It can be used as a photoinitiator in printing inks, in Clear and pigmented systems for surface healing. It is also used in the perfume, soap and plastic packaging industry.