TopShield Activator (part B) is suitable for TopShield 2K and Titanium Series. Mind the weight! You have to add 25% of activator (part B) in weight of coating (part A). In the "size" form, you will find the size of coating (part A), but you will receive the correct quantity of activator (part B) - eg. for 1 kg of part A, you will receive 250 g of part B. For further information, consult the updated data sheet.