How To Prime A Car
Paint primer is essential when spraying a vehicle as it is basically what the paint sticks too. There are different types of primer for each type of paint. For instance I only use 2 pack paint when I'm spraying a car so I need to use 2 pack primer for that paint. There are different colours when it comes to primer aswell but Grey is the typical one that is used when spraying a car. There are also two types of primer that you need to know about when spraying and that is plastic primer and metallic primer. Plastic primer is clear and kind of looks like water and once its sprayed on it forms a invisible film over the plastic trimmings which helps the paint stick properly. I ve shown pictures on the right the big tin is metallic primer and the plastic primer is the Pink tin. These primers are very cheap to buy and can be picked online very easily.
Filler Sanded Smooth
Preparing For Primer
Preparing a car for primer is an easy but time consuming. You have to make sure that all the old paint is flat and that all the filler if you used any is flat and smooth as well. It is essential that all the surface is completely smooth because if its not you will notice all the in perfections once you apply the primer and even worse you will have a very bad paint finish. Once you have all the filler and old paint sanded down smooth you have to now clean all the dust from the surface with a rag or cloth. It is very important that you clean the surface properly because if you don't the primer and paint will react with it and the primer and paint might bubble or leave sort of a grit finish and you dont want that happening. If you would like some sanding tips you can read my other articles about sanding at the link i ve provided below.
Sand Down The Primer
Once you have the primer sprayed on you will have to smooth it off so you can spray on your first layer of paint and to do this you will need some 800 grit wet dry sand paper. What you need to do is get a basin of cold water and dip the sandpaper in it until its thoroughly wet. The wet sandpaper leaves a very smooth finish on the primer but make sure only to use 800 grit or up because if you leave a rough finish on the primer you will notice it on the finished paint job.When sanding primer you have to make sure that your sandpaper is wet at all time so that you make sure your smooth finish is achieved. I have done and seen a badly finished paint job as a result of the primer been sanded to rough and not smooth. The first car i ever sprayed came out wrong because i left swirl marks on the primer because i used the wrong sandpaper and never kept the sandpaper wet at all times. I took that as a learning curve and haven't made that mistake again so please make sure you don't make it either because its costly to fix.
Learn As You Go
When i started out doing up cars i hadnt got a clue about how to spray a car as my knowlege only wnet as far as the mechanics as i am a mechanic. I used to pay people to do the bodywork on the cars i was doing up but then i said to myself one day that i could chance it myself as i had a fair idea about how to do it. After i decided to chance it myself i started reading hubs, blogs and articles about spraying just like your doing now as you read this and i have to say they helped a lot. You tube is another fantastic way in learning the technic of sanding, filling and spraying. So with that said i hope my articles help you on your journey to doing up and fixing your car and i wish you the best of luck.