How to Underseal your car using the FX111 CommentSunday, 5 January 2020 | Admin How to Underseal your car using the FX11 The FX11 gun is a premium schutz gun. Its improved over the standard underbody schutz gun several ways.
How to Setup the FX11 gun for undersealing
There are many types of paint, and waxes that you can spray using this gun, so we will cover a "universal" way to use the gun, and then also using our specific buzzweld products, along with some tricks and tips on how to get the best from this schutz gun. There are several factors that will affect how your paint sprays. here are the most important things to get right when spraying with a schutz gun Air Pressure The Gun works by passing compressed air over a "venturi". This venturi causes a vacume at the top of the pipe, and the bottom is submerged in the paint when you screw the gun to the pot. So in theory, when you pull that trigger and release the air, it sucks the paint up, mixes the paint with the air, and BAM- your spraying... The ideal pressure we find for almost all applications is 75PSI. You will tend to find that 50psi or lower the gun will tend to spit more, and need more time to cover an area. Above 75PSI you are exceeding the pressure rating of the cans, so if you get a blockage, you are at risk of a "paint bomb". However higher pressures atomise better, spray more paint, and use more paint, so you can work faster. TOP TIP :- Once you have sprayed your car, lower the pressure and spray the whole underbody over, moving the gun faster than usual. This will create a heavier textured effect.
Paint Viscosity - Setting up undercoating gun to spray Based on the vacume created by the air pressure above, air pressure will dictate how much paint comes out. With the gun drawing the paint up the tube, naturally the thicker the paint the harder it is to draw it up the tube, the harder it is for the air to split the paint apart and mix it with the air. So thicker paints will come out slower and leave more of a texture. To get the gun to suck paint you first need to adjust the nozzle. This will dictate how much paint the gun tries to draw up the tube. Do this by following this gun setup procedure: -
TOP TIP :- Clean the adjustable nozzle if you experience issues with product pickup, or poor spraying
You can do several things with the gun to alter the texture, the overall finish, and the coverage, as well as film thickness.
Film thickness is very important for suitable protection, so ensure you do not increase coverage so much that you reduce the required film build. heres a bunch of tips for you:-
How to Paint hard to reach places The FX11 gun has the unique ability for the gun to detach from the spray gun adaptor. this means that you can detach the can easily, and use it to air dust down the underbody before. this is a great thing to do before spraying. Because of this feature the gun and can adaptor can swivel 360 degrees. this means you can have one hand on the gun, and one on the can, and move them in opposite directions whilst spraying. This allows you to paint outer wheel arch lips, up and around rear suspension, and get on top of chassis rails. This is why we use the FX11 gun.
Spraying using the extension probe often requires additional setup. We will assume you have been successfully spraying as above with WAR underbody super wax, and now want to spray it into the cavities. Just connect the lance and spray right?- WRONG!. this will cause the gun to block. Using the extension lance actually reduces the ability of the gun to spray. to assist here we recommend the following steps prior to spraying with the gun.
OPTIONAL EXTRAS Further Reading - Negative affects of thinning paint |
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good write up guide for gun. gun itself really good value for money.