Flap disc

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Hey any thoughts on this product ? I've used the crap flap discs and they are ok, do not last but that's expected, cheep is just that cheep. For grins and adventure I picked up a flap disc manufacture, Stingray  blue line. Anyone using this like em hate em other flap disc that stand out, kindly include the type of usage, all day everyday or weekend projects.What do you think is the best surface grinding media for cleaning and smoothing welds?Ok balls in your court.Greg
Reply:I have been using Klingspor flap discs since the late 80s, and I swear by em. But if you have big metal to remove, you use a grinding wheel first- flap discs are sandpaper, and they wear out. So I dont waste em on bulk stock removal- they come in after the heavy work is done with a grinding wheel.I buy the klingspors by the box direct from Klingspor, if you get an account they are pretty cheap. I use SMT626, in the 50 grit, for most everything- I have probably bought somewhere north of 500 of em by now.http://www.klingspor.com/products/klgprsmt.htm
Reply:I use Norton Blaze belts on my grinder, so I gave their flap discs a shot.  They worked great and I continue to use them.
Reply:I have been using the house brand from Lehigh Valley abrasives for about a year now, been through around 50 of them in the 36 grit. For $1.89 each, I can't find anything to beat them. Like was said above, I use the stones for major stock removal and the flap disc for blending.
Reply:All right then, flapper is sand paper and the stone is the work house, the rule of thumb. Sand paper, flapper disc is straight up consumable and no advantage spending extra for it. I understand that for sure.  Makes total sense just thought I'd ask the question to see what folks thought..Thanks,Greg
Reply:EPA laws are stricter in certain areas and countries and thats where the differance comes into play with bonding agents. Thats why some wheels, disks or sand papers will wear out quicker than others.I hate being bi-polar it's awsomeMy Heroes Have Always Been Cowboys
Reply:I wouldnt say no advantage to paying extra. Cheap crap is cheap crap.The Klingspor is really high quality german stuff, although I believe they also make a bit of it in the US. I definitely believe in paying extra for it.They outlast the crappy house brand stuff by a mile.And they use better abrasives, paper, and glue to begin with.I keep about a half dozen grinders on my bench, including one with a grinding disc, one with a wire wheel, one with a flap disc, one with a cut disc, and one with a 3M red fuzzy pad. Plus duplicates of flap and grinder, of course, in case you need to have 2 guys working at once.I spend "extra" on all of em- only use Osborne wire wheels, for example. Real 3M fuzzy pads. The good stuff is worth paying for- it saves you time, makes you money, and gives you a better quality product.But, yes, its ALL consumables, and it all gets used up.
Reply:The flapper disks don't seem to get loaded up with the ground material as much as the hard disks do. When grinding flat surfaces, I like to use the flappers since the hard disks seem to work best for me when using the edge of the disk. They take off more material for me that way. I guess it depends on how you are going to use them.I think the flappers are excellent and I don't exactly consider the Norton's to be "top of the line" stuff but I am a hobbyist and not doing this every day. So the decent quality Norton's are good for me.I also agree that crap is crap and it stinks no matter how you use your tools.
Reply:These are awsome, any of you guys using them? I heard they're pricey, but I got two boxes for nothing so i'll cross that bridge when I get to it. Great for corner work or when you can only get the backside of a grinding wheel into an area.  Attached ImagesI hate being bi-polar it's awsomeMy Heroes Have Always Been Cowboys
Reply:Those look awesome. I have to find me some of them........
Reply:I usually get the Walter black plastic ones. The plastic ones allow you to grind the plastic body back to get a fresh edge, as apposed to the stinky fiber-backed ones. DON'T get the Walter ones with the threaded mounting hole built in!!! 1 in 3 will strip out or break. Major PITA!!! The blue plastic Jet brand ones seem ok, but I've not used a lot of them. I find the glue used in some brands make a big difference. Some seem to glaze up when they get hot and either leave residue on the work or get hard once cooled and don't cut well after that. WelderMike: Those look cool as the paper is wrapped back towards the inside. Is the whole edge just the folded over paper?200amp Air Liquide MIG, Hypertherm Plasma, Harris torches, Optrel helmet, Makita angle grinders, Pre-China Delta chop saw and belt sander, Miller leathers, shop made jigs etc, North- welders backpack.
Reply:Hey a brother from my home town... Bert.... I find that too with some brands, if I had been using too much the glue does bleed out a bit.
Reply:Originally Posted by weldermikeThese are awsome, any of you guys using them? I heard they're pricey, but I got two boxes for nothing so i'll cross that bridge when I get to it. Great for corner work or when you can only get the backside of a grinding wheel into an area.
Reply:Originally Posted by Showdog75Mike I've been using those since they came out. One bit of advice, put your guard back on because I found out the hard way how easily they will go through welding gloves and IMMEDIATELY ground my middle finger to the bone.
Reply:Originally Posted by mckutzyHey a brother from my home town... Bert.... I find that too with some brands, if I had been using too much the glue does bleed out a bit.