1. Select an application method.

Tray immersion: Submerge item in R.A.Y. solution for 5 seconds.

Spray application: Evenly spray R.A.Y. solution with a squirt bottle or aerosol sprayer onto item and leave for 5 seconds. 

2. Allow item to air dry.

3. Ridges will develop an orange color and can be captured using 1:1 photography.

4. View ridge development using a laser or forensic light source in the 450 – 550nm range using orange or red colored glasses.

5. Capture ridge detail using 1:1 photography and an orange or red colored barrier filter.