In recent years Tamiya has expanded their model line to include finishing supplies like panel line accents, diorama materials, decal setting solutions, etc.
This particular review will cover the following decal setting solutions :
Like all decal solutions, and most modeling supplies, make sure you use them in a well ventilated area. While the Mark Fit solution is not that smelly, the Mark Fit Strong has a strong vinegar smell and both have a warning about fumes being dangerous.
Based on the instructions for both solutions they instruct you to apply the decal as always, and once you blotted the water off, to put some of the setting solution on top of the decal (you are even provided with a small brush in the cap), and to not touch the decal until fully dry.