Originally Posted by Northampton Novice
Whilst neural shoe polish has it's uses, I wouldn't advocate using it instead of it's coloured/pigmented counterparts on a regular basis.
With sustained use of neutral polish, the higher solvent properties, will strip and therefore overtime dull the vibrancy of your shoes.
It's effects are most noticeable on shoes with antiquing or crust leathers. You'll find some shoe manufacturers don't recommend it for routine polishing.
I agree that using neutral polish is not recommended on a regular basis. Since there is no pigment in the polish, you will simply see some of the oils trapped in the wax with too many layers, which will cause the polish to look dull (just like it does in the tin). A coat or two of neutral over a smooth pigmented wax base will give the shine some depth and make for a great spit shine however.
As for neutral polish having higher solvent properties, I have not experenced it. And, while I have been polishing my own shoes for close to 40 years, I have not been using Saphir products for nearly that long. I think it would be great if Kirbya could ask the makers of Saphir this question (since he has developed a relationship with them). I have sent a request to Kiwi with the same question, as I think this is very useful information to have.
I believe that the reason neutral polish is sometimes recommended (certainly not by me) as a way to remove other polish is because solvents in any shoe polish will break down the surface wax for removal, and neutral wax will not add pigment to the shoe. I suspect this has limited effect however. With antiquing you have the same situation, the solvents break down the surface wax, and the neutral allows the result to show. Just my opinion of course, but I'm happy to be proved wrong.