Why is Spraying Better than Rolling?
You can see truck bed liners being sprayed at auto body shops all over america. The reason you see these trucks being sprayed and not rolled on is that the formula being used is designed to react and dry quickly so that the vehicles can be returned to service. In essence, fast dry time is a property that can be associated with a 2 part sprayed product versus a one part roll on. So, spraying is better for this reason as well as material control. With a brush or roller you cannot achieve the exact build and texture that you can with a gun.
There are a few classes of spray gun. These include:
- Fusion Guns – Like Fusion AP/CS
- High Pressure Non-Fusion
- Low Pressure – A/B hoses 0- Allows mixing
- Gravity Fed Hopper – quite a bit of control, 2 tips or one tip, premix material little control over set time
- Schutz Guns – Very little control, basic 2 step operation.
- HV/HP Paint Gun – Used for top coating only
Professional – Non DIY
DIY Guns
In summary two major benefits: 1. The roller gives you less control over texture and build 2. A material sprayed through a gun typically has a lower set time than cheap coatings that are designed to ONLY be rolled on.
