Spray Grime Grinder directly onto the area you wish to clean, let sit for 10-30 seconds then wipe with a microfibre cloth. 

If the affected area involves built up grime or dirt/ mud imbedded into plastics, spray Grime Grinder onto the affected area & let sit for 10-30 seconds. Whilst Grime Grinder is soaking the area, spray Grime Grinder into your detailing brush or microfibre towel until soaked. Now agitate the area. Soak brush to level that foaming occurs. Then wipe away residual foam & debris with a clean microfibre towel. Repeat these steps until affected area is clean. 

Soak soiled area with Grime Grinder, let sit for 1 minute, soak detailing brush or microfibre towel with Grime Grinder, then agitate soiled area. Repeat these steps until you are happy with results & then blot dry area with clean microfibre towel. If the stain/ soiling is too severe, continue using Grime Grinder as a wet vac extraction pre-treatment stain/ soil softener.