PAK Tar Detector 

Used to detect the presence of cold tar in recycled road materials.It contains specific solvents to dissolve PAH (Polycyclic Aromatic Hydrocarbon),

How does Pak tar detector/spray work?
Once the Pak detector has been sprayed, after approximately 15 minutes, you will notice the white spray turn to a yellow like colour. You will now notice the levels of PAH in tar levels of 100 ppm and above.