Polish breakdown time

Discussion in 'Tools - Machine Polishers, Pressure Washers, Detai' started by SBDinATL, Nov 7, 2008.

  1. SBDinATL

    SBDinATL Virgin Detailer

    When using a PC does pad size affect the breakdown time?

    I just got some 4" pads (thanks Phil!) and wonder if the working time is going to be different from my 5.5" pads

    Thanks
     
  2. togwt

    togwt Nuba Guru

    Polish to a ‘haze’ - when a polish "flashes" from a liquid paste to a light semi-dry haze; its colour changes from the polish colour to almost transparent (like a thin film of Vaseline) ; the polish has then broken down and is ready for removal. The point at which a polish is fully broken down comes with experience but a good yard stick is when the polish has become clear and can easily be wiped off.

    The general rules for foam pads;
    Pad size; with smaller pads you gain increased control and manoeuvrability. Smaller pads generate more friction (heat) with a PC, which breaks down polishes by generating energy over a concentrated area. The random orbiting motion of the PC generates the most power in the centre of the pad (i.e. area of a 6.5 – inch pad is 33 – square inches compared to the area of a 4 – inch pad, which is 12.5 – square inches) This additional cutting power will facilitate the removal of deeper imperfections
    The opposite is true with rotary buffers. The speed of the outer edge of a smaller (radius) pad is slower than that of a larger (radius) pad. This helps reduce the amount of friction generated, which makes polishing tighter areas much safer.

    For more information see the “Diminishing Abrasives" and "Foam Pads” article
     
  3. Purplewidow

    Purplewidow Obsessive Detailer

    yeah if you have a tough time removing the polish it didn't break down all the way.
     
  4. musc

    musc Jedi Nuba

    I found that it does break down the polish quicker moving from 5inch to 4 inch pads recently. I really like the 4" on the PC.
     
  5. Asphalt Rocket

    Asphalt Rocket Nuba Guru

    The polish will break down a little quicker with the 4 inch pads.
     
  6. Misha

    Misha Nuba Guru

    when my pads go bad i might move to 4 inch but thats not gona happen very soon since mine pretty much new, im sure i can make them smaller if i wanted to
     

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