Some rotary tips

[imported_wagsjr]

I just purchased a pc and I also own a dewalt rotary. I know the rotary does a nicer job but I have been having some probs. I feel it was a technique problem due to the fact that I do not work in a detail shop full time. A couple questions



I have noticed I do not hold the pad flat while polishing. It is a slight angle but probably digging in to much. Big cause of holograms?



I have been using the handle on side to steer and applying a LOT of pressure. Let the weight of the buffer be the pressure?



It also seems I work the rotary from front to back(windshield to front of car and especially on hood, trunk etc.)sure and make another pass. DO you guys make even passes back and forth? IT seems with the clockwise direction of the head it grabds to much on the way back. Now side to side passes on a horizontal passes, no probs.



The guy I learned from does great work but he was a big wool pad fan and mostly older cars for used car dealerships.



Another thing I know that was defintely a problem was too big of an area at a time. I was attacking half of the trunk lid at a time. Smaller area and inspect. I did one test spot and rip through the whole car.



My technique is wrong so hopefully with a few passes I can correct this. While my technique was bad I only see the prob with black and dark blue. Reds come out swirl and hologram free as well as the darker greens.



Hell I may have even answered my own questions.

 

[imported_Dave KG]

Hi mate, when working in polishes, try to keep the pad flat on the surface... It also reduce the chance of slinging product this way, and with compounds you can end up picking up sling later in your set of passes which has sharp abrasives in it (not broken down) and these dont fully get broken down, resulting in holograms.



Also, hologramming is cause by not fully breaking down the polish - that is, not making enough passes. This is why some bodyshops here in the UK products very hologrammed finishes, as they are rushing the job. Also, moving the machine too fast will cause them as this wont work the polishe thoroughly, and too high a speed on the rotary will cause them too. I rarely go above 1500rpm on the rotary, and never go above 2000rpm.



I make passes back and forth and then up and down to form a criss-cross pattern when polishing.



As you pracitse with the tool, you will soon find that you pick up what techniqes and methods work for you and you will find your finishes and defect removal powers getting better all the time. The rotarty is a fantasticv tool, great for defect removal and excellent for finishing, it just needs a little practice to get the best from it. :waxing:

 

[maesal]

Hi mate, when working in polishes, try to keep the pad flat on the surface... It also reduce the chance of slinging product this way, and with compounds you can end up picking up sling later in your set of passes which has sharp abrasives in it (not broken down) and these dont fully get broken down, resulting in holograms.



Also, hologramming is cause by not fully breaking down the polish - that is, not making enough passes. This is why some bodyshops here in the UK products very hologrammed finishes, as they are rushing the job. Also, moving the machine too fast will cause them as this wont work the polishe thoroughly, and too high a speed on the rotary will cause them too. I rarely go above 1500rpm on the rotary, and never go above 2000rpm.



I make passes back and forth and then up and down to form a criss-cross pattern when polishing.



As you pracitse with the tool, you will soon find that you pick up what techniqes and methods work for you and you will find your finishes and defect removal powers getting better all the time. The rotarty is a fantasticv tool, great for defect removal and excellent for finishing, it just needs a little practice to get the best from it. :waxing:

I thought that the way to use it is making a 8 pattern, overlapping passes... I also used the back and forth movement with nice results, but I always finish the polishing with a 8 pattern overlapping passes.