WorléeAdd ST-70
W´Add ST-70 is a free flowing stannous octoate catalyst used in polyurethane powder coatings. The product is prepared from a liquid stannous octoate and an amorphous silica powder.
W´Add ST-70 can be used in acrylic-urethane and polyester-urethane powder coatings to increase the reactivity. The recommended addition is between 0.1 - 0.5%, it is blended in the dry-mixer with all the other ingredients prior to extrusion.
Technical Data
Appearance
white powder
Active stannous octoate
68 - 72%