Bonding of H-PDMS to Glass Slide. The primer was coated on flame treated glass substrates using a spin coater with a speed of 1000 rev/min, which resulted in a 3 m thick primer. We found that this primer can be used soon after drying, e.g., after ten minutes or even after one or two days of leaving them in atmospheric condition. The composite coating was then coated on the top of the primer layer after it dried using the Doctor Blade instrument that resulted in leveled coatings with the desired thickness. The samples were stored in atmospheric conditions for 5 hours before they were cured in the oven at 70 °C for 2 hours. Various thicknesses of the coating were prepared following the above method.