Perfect for inlay backgrounds and complete, spot-on color control for your repairs and restorations. MasterTint will never weaken your polymeric bond, so your work remains sound over time. Long-lasting formula works with all GluBoost products and dissolves right in, no solvent needed. CAUTION: MasterTint is ultra-concentrated; using too much or too little Fill n' Finish or MasterGlu can result in clumping or a non-drying mixture.