TopShield Thinner (part C) is suitable for all TopShield lines. Mind the weight! You have to add between 20% and 50% of thinner (part C) in weight of coating (part A) depending on your spry gun/pen. In the "size" form, you will find the size of coating (part A), but you will receive the correct quantity of thinner (part C) - eg. for 1 kg of part A, you will receive 500 ml of part C. For further information, consult the updated data sheet.