A Safer, Cleaner, More Efficient Finishing Solution.

Runs and sags are defects caused by applying too much paint in one area, causing it to succumb to gravity before it can set. This is a common problem that can be solved with properly set up spraying equipment. The primary cause is moving the spray gun too slowly across the part or holding it too close. Another cause is having the fluid flow rate set too high for the speed of application. An automated or robotic spraying equipment system from TIMS COATING is the ultimate solution. By programming the exact speed, distance, and flow rate, we can engineer a repeatable process where runs and sags are physically eliminated from the equation.

The nozzle tip is a small but incredibly important component of your spraying equipment. Choosing the right one is critical for a good finish. Nozzle tips are identified by a three-digit number, like "517". The first digit ("5") when multiplied by two gives you the spray fan width at 12 inches away (a 10-inch fan). The last two digits ("17") indicate the orifice size in thousandths of an inch (0.017"). You should choose a fan width that is appropriate for the size of the part you are spraying. You should choose an orifice size based on the viscosity of the material you are spraying—thicker materials like primers require a larger orifice, while thinner materials like stains require a smaller one.

The choice between robotic and manual spraying equipment comes down to volume, complexity, and quality requirements. Manual spraying is ideal for low-volume, custom work where flexibility is key. However, it is inherently inconsistent. Robotic spraying provides absolute repeatability. A robot will follow the exact same path, at the exact same speed, with the exact same trigger points on every single part. This leads to a more uniform finish, reduced material waste (often a 15-30% savings over manual spraying), and higher throughput. For any medium- to high-volume production, a robotic spraying equipment system from TIMS COATING will provide a rapid and significant return on investment.

"Orange peel" is a common defect that makes a finish look like the textured skin of an orange. It is often caused by incorrect setup of your spraying equipment. The primary cause is poor atomization, meaning the paint droplets are too large when they hit the surface. This can be solved by increasing the atomizing air pressure or by reducing the fluid viscosity (thinning the paint). Another cause is applying the paint too dry, either by spraying from too far away or having the fan air pressure set too high. A consultation with a TIMS COATING process expert can help you tune your spraying equipment to eliminate this defect and achieve a perfectly smooth, "Class A" finish.