If you're looking for a great surface preparation spray with two strengths then look no further than Reveal.  It comes in both Strong and Lite depending on how aggressive you need to be with residue, adhesives, and oils to make sure you have the best surface to work on. 

How To Use Lite:

• Spray a liberal amount on the panel
• Wipe quickly with a clean microfiber towel
• Check the panel and apply more as needed

How To Use Strong:

• Spray onto a microfiber towel and wipe the surface
• Wipe residual liquid with a clean microfiber towel
• Check the panel and repeat as necessary