~One man’s opinion / observations ~
Backing Plate:
Always use a smaller sized Velcro backing plate then the Velcro foam pad you are using (i.e. a 6-inch Velcro backing plate and a 6.5-inch Velcro foam pad) Never use a Velcro backing plate that is larger then the Velcro backed foam pad.
A 5-inch diameter backing plate when used with a 6.5 -inch foam pad allows a 0.75-inch ‘safety’ margin’ between the edge of the backing plate and the foam pad. To ensure compatibility of fit with a Porter-Cable the post adaptor should be a 5/16th-inch-24 threaded shaft.
To centre the foam pad on to the PC backing plate, set it upside down with the Velcro backing plate facing up (this is easier if the side handle is attached). Using the tips of your fingers as spacers against the edges of the backing plate. You can centre it with near perfect results most of the time
Foam Pad Application:
Cutting Pad (* Yellow)- a firm, high-density foam with a medium abrasive cutting action, for use with Machine Polish, Swirl Mark Remover, Autoglym Cutting Polish (Speed number 4-5)
Polish / Waxing Pad (*White)-a softer less dense foam composition with a light abrasive cutting action. For use with a Swirl Mark Remover, Pre-Wax Paint Cleaner, Klasse All-In-One, or Autoglym Super Resin Polish (Speed number 4)
Finishing Pad (*Gray)-an ultra-smooth foam that has no abrasive cutting ability, for use with Klasse High Sealant Gloss, Autoglym Extra Gloss Protection, Zanio Z-2 or Z-5 or a Glaze (Speed number 3-4)
The colour identification are those used by Classic Motoring Accessories (CMA) All manufactures of foam pads use a different colour to identify the abrasiveness or cutting ability of their foam pads.
Wool Pads:
Are made from ¾-ich, 100% natural lambs wool (do not use synthetic wool) are usually used to level a paint film surface with a machine polish (compound) or to apply a polish to large areas (diamond plate, Aluminum trailers, etc.)
Wool pads used wet or dry are very aggressive and have the greatest cutting ability and they also produce the most paint surface ‘haze’
Pad Cleaning:
1. Clean foam pads soon after use, if left saturated for extended periods of time the chemicals used in polish will cause the foam to soften and deteriorate
2. Extend the usable life of foam pads by periodic cleaning, removing of caked on or hardened products residue by lightly brushing with a horsehair detailing brush (do not use metal or nylon as this will tear the foam)
3. Don’t stack or leave foam pads were other objects could crease or deform them
Ensure foam pads are thoroughly dry before storing them in an airtight (baggies etc)
~Hope this helps~
Experience unshared; is knowledge wasted…/ Jon
justadumbarchitect * so I question everything *