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Thread: ROS Sanding Disks on sale

  1. #1
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    ROS Sanding Disks on sale

    at Klingspor, a "Power Buy"

    5", various hole patterns, 50 sheet packs on sale for $10.95

    I've had some recent good experience with these guys, great service!

    Cheers!
    The pessimist complains about the wind; the optimist expects it to change; the realist adjusts the sails.
    William Arthur Ward

  2. #2
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    What does "economy" mean Stu? I didn't look around to see what they are normally. Any idea?

    I looked at their email sale notice and I see that I cannot use these anyway as I am using water based coatings and the disk are coated with zink stearate lube.
    Last edited by Allen Bookout; 12-08-2007 at 04:23 AM.

  3. #3
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    Allen they have a TON of good sanding stuff there, maybe drop them a line and get their free catalog, easier to figure stuff out on the catalog when you can just flip pages, compared to the website, for me anyways

    Cheers!
    The pessimist complains about the wind; the optimist expects it to change; the realist adjusts the sails.
    William Arthur Ward

  4. #4
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    Allen, I just looked at the catalog and they do not have these disks in there.

    Why can you not use the "zink stearate lube" with water based coatings?

    I'm not trying to start an argument, I just do not know

    As to the "Economy" rating, they have several levels of disks available, from "Heavy-E-Weight" ($21.95 a 50 pack) disks that are supposed to be the top pro level to the lightweight paper disks ($13.25 a 50 pack) so as usual, you get what you pay for.

    I just tried to call them, but they are closed, you can request a catalog 24/7 or order 24/7 with a call service, but the people there are just taking orders, you got to call during business hours to get someone to ask questions to.

    OK, I did some "Googling".........

    Basically a summary of an article that appeared in issue 125 (July/August 1997) of Fine Woodworking. Note that alumina zirconia falls under "ceramic."

    Aluminum Oxide
    -Best all-purpose paper.
    -Cheaper grades are dark brown; better grades are almost white. Some brands are better than others.
    -Standard ‘production’ paper.
    -Lasts longer than other abrasives.
    -Friable, which means that the grains break in use and so constantly renew their edge.
    -Typically “open coat” which means that there is space between the grains for the sanding dust.

    Stearate Coated
    -Typically made with Aluminum Oxide or sometimes Silicon Carbide.
    -Coating is typically Zinc Stearate and acts like a soap, cutting down on clogging.
    -Really only helps when sanding oily or resinous woods, or finishes.
    -Stearate can interfere with water-based finishes.
    -Otherwise properties derive from the abrasive used on the paper.

    Silicon Carbide
    -Harder and sharper than aluminum oxide, which means that it is especially good for hard materials such as paint, plastic, and metal.
    -Usually a waterproof, “closed-coat” paper.
    -Dulls more quickly than aluminum oxide when sanding wood because wood is not hard enough to break the grains. Also clogs easily if used dry.

    Ceramic
    -More costly and less common than other abrasives.
    -Very aggressive and tough.
    -Mostly used for coarse work like shaping.
    -As with silicon carbide, wood is not hard enough to break the grains but this is less of an issue with ceramic grit because of its extreme toughness.
    -Trade names include Cubicut, Regalite, Alumina Zirconia, Norzon, and AZ.

    Garnet
    -Light tan colored natural mineral.
    -Non-friable and not very tough so it breaks down quicker.
    -Produces a softer cut, which makes for a nicer final finish on wood.
    -Excellent for final sanding and for end-grain.
    -Garnets tendency to burnish the wood can make stain penetrate more evenly, but less deeply on blotch-prone woods.

    Other Notes
    -FEPA (P-Scale) abrasives are graded more tightly then CAMI (US Standard) graded papers, so they produce a more consistent scratch pattern. Micron grading is even tighter than FEPA. The scales also do not match up exactly, but they are not too far off in the grit ranges typically used for woodworking.
    -Paper backings are graded in weight using a letter scale: A, C, D, E, and F (lightest to heaviest).
    -Cloth is stiffer but not as flat-backed as paper. It is tougher than paper but produces courser results. It comes in two grades: X (heavy), and J (light).

    I did not doubt you Don, I'd just not heard this before, thanks, I learned something today!
    The pessimist complains about the wind; the optimist expects it to change; the realist adjusts the sails.
    William Arthur Ward

  5. #5
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    Lots of good information from your research. Thanks!

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