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  1. Replies
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    All of the advice you've gotten here regarding...

    All of the advice you've gotten here regarding the 3M blue tape is good, however I have another piece of advice. Throw it away and get some (orange) FBS ProBand fine line tape. It's more flexible...
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    Is he looking for more sparkle (which the flake...

    Is he looking for more sparkle (which the flake would provide) or does he just want a darker color? If he just wants it darker, I'd simply apply a darker color over the top, although you _could_...
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    Relax. In the worst case the company charges your...

    Relax. In the worst case the company charges your card and never ships the product. You then dispute the charges with Visa. It's a bit of a pain, but generally not all that bad.

    Harry Phinney
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    That may be true of some liquid masking agents,...

    That may be true of some liquid masking agents, but not all. Spraylat's "Sign Strip" iiquid mask is latex based. It forms a thin rubber layer that can be peeled off after painting. It's name comes...
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    The quarts are a lot more expensive than gallons...

    The quarts are a lot more expensive than gallons on a per-oz basis, and the tinted primers are more expensive than the standard grey. I can get a gallon of the grey DTM primer for a bit less than...
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    Yes, I buy it at the Carquest in Albany. They're...

    Yes, I buy it at the Carquest in Albany. They're one of two jobbers local to me. The other is a PPG Platinum dealer (APS, also in Albany).

    Harry Phinney
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    The most recent Valspar stuff I've bought: 1 qt...

    The most recent Valspar stuff I've bought:
    1 qt tinted DTM primer - $41.67
    .5 pt DTM activator (I use it 4:1:2) - $10.67
    1 qt fast reducer - $15.37
    1 qt AC4400 clear - $42.35
    1 pt HPC1 activator...
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    I've used Valspar's primers, basecoats, and...

    I've used Valspar's primers, basecoats, and clears. Both their epoxy and DTM hybrid epoxy/acrylic primers are available in a range of tinted colors. The best I can tell the DTM primer is identical to...
  9. Thread: Bad K38

    by Harry Phinney
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    954

    In my limited experience K38 has a short pot...

    In my limited experience K38 has a short pot life. I'd treat it like a polyester primer and only mix up enough for a single coat. I've not reduced it, but my guess is that 10% reduction is unlikely...
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    Trying to fill holes with only welding rod is not...

    Trying to fill holes with only welding rod is not going to be fun or easy. It would be easier to get some aluminum sheet of similar thickness and to cut out plugs to weld in. If you go this route,...
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    It's not thinners, reducers, or even paints that...

    It's not thinners, reducers, or even paints that spontaneously combust - it's polymerizing oils such as linseed oil and tung oil. For the combustion to occur there has to be a relatively large...
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    I've used Kirker's SS urethane and their Lazer...

    I've used Kirker's SS urethane and their Lazer Dry "basecoat" system. The SS urethane worked quite well, but it was just to repaint my flammable storage cabinet. It's held up well in use on the...
  13. I don't use DuPont paints, so I can't offer...

    I don't use DuPont paints, so I can't offer specific advice on products. As Len said, your dealer should be able to recommend specific products. Generally, polyurethane primers are not suitable as...
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    Those are all great work Dave! I really like the...

    Those are all great work Dave! I really like the box pinstriping on the Harley.

    Harry Phinney
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    As has been stated multiple times in this thread,...

    As has been stated multiple times in this thread, if you buff a matte finish (including urethanes, it really makes no difference) it will no longer be matte. Try it on the flat paint walls in your...
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    I "do" the graphics, but much of that is...

    I "do" the graphics, but much of that is "cheated" - i.e. dry transfers from SSSink:
    Screen Specialty Shop

    Their dry transfers are pretty cool. They're essentially paint that's ink-jet printed...
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    I don't take many photos, but one of my customers...

    I don't take many photos, but one of my customers does. :

    Envy Green Bike
    Deep Purple Kandy Bike

    And one of the projects that taught me a bit about matte finishes:
    Matte Black Bike

    I've...
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    Yes, it will. Gloss is not a property of the bulk...

    Yes, it will. Gloss is not a property of the bulk material. It is a property of the surface. Flatteners result in a micro-roughened surface which polishing smooths out.

    Harry Phinney
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    Flux core doesn't run well at really low amperage...

    Flux core doesn't run well at really low amperage as is needed when welding thin sheet metal. The flux residue does need to be cleaned off, but that's not a big problem and can be accomplished with a...
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    Mixing clear with the last coat(s) of a single...

    Mixing clear with the last coat(s) of a single stage black can work really well, but it's tricky and IMO not worth it with other colors. When you mix the color and clear you're basically making a...
  21. New sheet metal, metal cutting tools, and a...

    New sheet metal, metal cutting tools, and a welder. The repair procedure is to cut out the rusted metal and weld in new metal.

    Harry Phinney
  22. Thread: Cfm

    by Harry Phinney
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    4,310

    Yes, that's right. Harry Phinney

    Yes, that's right.

    Harry Phinney
  23. Thread: Cfm

    by Harry Phinney
    Replies
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    4,310

    As Cameron noted above, the sander manufacturer...

    As Cameron noted above, the sander manufacturer is essentially assuming some undisclosed duty cycle when they state a consumption of 4 cfm. In other words, they're assuming that you'll run it for 5...
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    If you can't bolt brackets to existing points -...

    If you can't bolt brackets to existing points - e.g. caliper or fender bolts on the lowers or bolts onto the triple clamps on the uppers - then Pico makes some "insulated clamps" that are one step up...
  25. Commonly it's TDI - toluene di-isocyanate. I...

    Commonly it's TDI - toluene di-isocyanate.


    I don't know of any manufacturers that will divulge the component chemical ratios of their products.


    In the very least you'd need another opening...
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    What do you mean by a rough edge? Is it rough as...

    What do you mean by a rough edge? Is it rough as in uneven in height, or uneven in width meaning the paint edge doesn't follow the edge of the tape? If it's the edge height that's the problem that's...
  27. Thread: Help!!!!

    by Harry Phinney
    Replies
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    1,503

    As long as your garage is dry (i.e. the roof's...

    As long as your garage is dry (i.e. the roof's not leaking) then it shouldn't matter if it's raining. Paints (including rattle cans) generally work better above about 60F, so you might wait if it's...
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    These statements are contradictory. An MGA was...

    These statements are contradictory. An MGA was certainly not clearcoated originally so if he wants it clearcoated then he doesn't want it as it was originally. A non-clearcoated single stage urethane...
  29. The hardeners used in paints are indeed more...

    The hardeners used in paints are indeed more dangerous than the other paint components, but IMO you need decent ventilation and good personal protective equipment regardless of the type of paint...
  30. A site search of sata-gmbh.com for minijet 3000b...

    A site search of sata-gmbh.com for minijet 3000b turned up nothing but links to the older minijet 3, the minijet 4, and satajet 3000 stuff. I found a UK retailer that listed the Minijet 4 as a...
  31. Dust - I've never heard of a Minijet 3000. AFAIK...

    Dust - I've never heard of a Minijet 3000. AFAIK the current Sata mini gun is the Minijet 4. The Sata 3000 is their full size gun. I prefer a narrow-pattern mini gun for painting bicycle frames. Sata...
  32. Replies
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    What primer(s) are between the metal and the...

    What primer(s) are between the metal and the basecoat and when and how were they applied? Was the base activate/hardened or just reduced? Generally if you sand on the basecoat you'll need to spray...
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    My guess is that the reaction is from something...

    My guess is that the reaction is from something underneath the primer, but the only way to be sure is to figure out where the lifting/wrinkling occurred - in the primer or below. If it's something...
  34. Replies
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    1,092

    I don't know if my work with them is worth a...

    I don't know if my work with them is worth a crap, but I do some airbrush spraying. With automotive paints you generally have to over-reduce the paint. When using a basecoat that normally reduces 2:1...
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    No. The 503 gets rinsed off with water, and you...

    No. The 503 gets rinsed off with water, and you need to let the parts dry completely before painting. There's no specified time window involved.

    Harry Phinney
  36. While I've used HOK paints over DPLF primer, I'll...

    While I've used HOK paints over DPLF primer, I'll point out that HOK doesn't make a "high build primer" intended for application over epoxy. They instead offer two different sandable epoxy primers -...
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    An epoxy primer will certainly be better, but you...

    An epoxy primer will certainly be better, but you might want to consider pre-paint surface treatment as well. Paint will last (much) longer if the aluminum is properly treated prior to painting. In...
  38. Replies
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    .023 wire is best used on 14 gauge and thinner...

    .023 wire is best used on 14 gauge and thinner steels. Your .035 wire works best on steel from about 16 gauge up to 1/4".

    Harry Phinney
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    As the others stated, the MIG (i.e. with gas) is...

    As the others stated, the MIG (i.e. with gas) is better than your flux core setup, and is far better than a stick arc welder. If/when you convert your welder to use gas, do not get 100% CO2. Use at...
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    Most compressor noise comes from the intake....

    Most compressor noise comes from the intake. Either build a sound muffler for the intake or build an extended intake tube that goes out through a wall or up through the ceiling.

    Harry Phinney
  41. Replies
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    I agree - it's mostly metal dust with a little...

    I agree - it's mostly metal dust with a little abrasive, glue and paper fibers from the sandpaper mixed in. I too thoroughly clean it off, but generally find it only takes 2 or so passes with a...
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    As you noted in a later posting, not all ABS...

    As you noted in a later posting, not all ABS piping is rated for compressed air/gas usage. It's highly unlikely that any commonly available 4" ABS pipe is going to be rated for 125+ psi air/gas...
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    Tape tracking and/or adhesive transfer is one...

    Tape tracking and/or adhesive transfer is one reason I always use some type of clear before taping. I at least apply an intercoat clear - e.g. HOK SG100, PPG DBC500 - but more commonly a hardened...
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    The listed flash times are for painting in a...

    The listed flash times are for painting in a booth (i.e. lots of air flow) at 70 degrees F. If you're shop doesn't have equivalent ventilation and/or is cooler then you should lengthen the flash...
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    There are two likely causes. It's most likely...

    There are two likely causes. It's most likely that the wrinkling/lifting is occurring in paint layers below the epoxy. While epoxy primers are one of the safer materials to apply over existing...
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    The traditional approach is to use a body file to...

    The traditional approach is to use a body file to scratch the high spots. Of course, this dates from the days of cars with thicker sheet metal.

    Harry Phinney
  47. Replies
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    While it is common to use an epoxy as a...

    While it is common to use an epoxy as a non-sanding sealer, there are a good number of 2k urethane primer/sealers. PPG's K36 can be mixed either as a primer/surfacer (see technical data sheet P-169P)...
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    I've used: Enduro Prime epoxy primer -...

    I've used:
    Enduro Prime epoxy primer - inexpensive, sands well for an epoxy. It's performed pretty well for me overall. I strongly suspect it has more fillers and less epoxy resin than higher priced...
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    Any reasonably recent helmet will filter nearly...

    Any reasonably recent helmet will filter nearly all (i.e. 99+%) of the UV rays even in it's "light" state. The clear safety/scratch shields outside (and typically inside) of the lense are made from a...
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    Compressed air also stores a lot of energy, while...

    Compressed air also stores a lot of energy, while water does not. Do the manufacturers recommend the product for compressed gas use? Does OSHA approve its use for compressed gasses? I know there are...
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