re: Testing Finishes and Pre-finishing the Case

Found this on the interwebs:

TransTint and TransFast are both wood dyes, but they differ in their form and use. TransTint is a liquid dye concentrate that can be mixed with various solvents, including water, alcohol, and lacquer thinner, making it versatile for toners and stains. TransFast is a powdered dye that is only soluble in water. 

Key Differences: 

Solubility: 

TransTint can be mixed with water, alcohol, and lacquer thinner, while TransFast is only soluble in water. 

Use: 

TransTint can be used for toners in finishes, while TransFast is more suitable for basic staining. 

Application: 

TransTint can be applied by spraying or brushing, while TransFast is generally applied by wiping or brushing. 

Compatibility with Finishes: 

TransTint's solubility in various solvents can lead to issues with certain topcoats if not handled carefully, while TransFast's water solubility is less prone to lifting. 

Lightfastness: 

Both are considered lightfast, meaning they are resistant to fading from UV light, but TransTint, being a metallized dye, may offer a higher level of lightfastness