LUT stands for Limited Use Toner and means that a toner is not used in a large number of formulas. A Jobber can order a limited use toner through normal ordering process. Always check your stock prior to mixing a formula for any LUT's that it may contain.
A Controlled LUT is even less frequently used than an LUT. It requires that a vehicle be in the shop needing to be painted before a jobber can order it. An example of this is VM4370 or T4700.
Did you know?
An LUT list by brand is available on PPGrefinish.com. Tabs at the bottom of the report also let you view and sort LUTs by OE manufacturer. This can be particularly useful if you are servicing a dealership. To get it, login to ppgrefinish.com, and select "COLOR TOOLS" then look for "LUT Toner Lists".