1 When is there a need for an Adhesion Coat in leather auto color refinishing?

2 leatherBond3D™, leatherBond7A™, leatherBond8C™ or leatherBond9D™ ,what’s the difference in the products?

3 leatherFill90™ - in what situation is this product used?

4 Impregnator26™ - This is used to tighten up exposed grain and corrium, correct?

5 Skin4™ - What is this and when is it used?

6 Duller63™ - If I am using the matte semiTop56M do I still need this product?