[HN Gopher] 3M Glass Cloth Tape 361
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3M Glass Cloth Tape 361
Author : tosh
Score : 47 points
Date : 2022-10-20 18:43 UTC (3 days ago)
(HTM) web link (www.3m.com)
(TXT) w3m dump (www.3m.com)
| DemeterFarm wrote:
| Anyone have any examples of what they use this for? I don't have
| much that needs to be taped AND fireproof.
| dtgriscom wrote:
| Myself, I often use it as a back-up strip for submerged arc
| welding.
|
| (Well, I would if I did any submerged arc welding...)
| jcims wrote:
| Had the same question. I always have a roll of that aluminum
| tape around and find uses for it in hot spots. This seems like
| it could be better in cases where there's some flex. It's
| probably got a lot higher tensile strength than most tapes,
| too.
| CamperBob2 wrote:
| If, say, you had a crystal oscillator or voltage reference that
| is temperature-compensated or oven-stabilized, but also
| vulnerable to short-term instability due to convection currents
| or other airflow-related issues, you might wrap it in this type
| of tape, or use the tape to secure an aluminized heat wrap
| material that doesn't adhere well enough on its own.
|
| Or if you're out of https://www.grainger.com/product/3M-Duct-
| Tape-Nuclear-Grade-...? and need something in a pinch.
|
| Obscure thing to see here, for sure.
| waiwai933 wrote:
| The recommended applications seem like they make sense?
|
| > * Permanent sealing of high temperature ducts or chambers
|
| > * Applications requiring heat treatment followed by clean
| removal of the tape with little or no stain
|
| > * Protect surfaces against abrasion
|
| > * High temperature masking
|
| > * Bundling, holding and wire harnessing
| [deleted]
| exmadscientist wrote:
| It is expensive enough that you only want to use it when
| necessary, but they [1] built this place [0] with it. The hot
| water drill they used to bore into the Antarctic ice cycled
| between +100 degrees C and -40 degrees C daily, which caused it
| to develop leaks. This tape is one of the few materials that
| can survive in those conditions and hold the thing together.
| Nothing else they tried could do it.
|
| [0]: https://icecube.wisc.edu/ [1]:
| http://www.psl.wisc.edu/projects/large/icecube
| joshvm wrote:
| Winterover '20-21 here (there are other WOs on HN). We call
| it "driller tape" because it's was used all the time when the
| strings were installed (i.e. during drilling). Generally
| useful stuff for sticking things outdoors, though you do need
| to be quick with it. We also have a lot of teflon coated
| cable on station because everything else goes rock solid
| within a few minutes in winter. I rewired a bunch of people's
| heated goggles with that stuff (with an adapter for an off-
| head battery) because the factory cabling would break.
|
| However it's not made by 3M, the stuff we have at Pole now is
| Nitto P-212 [0][1]. It's possible we or other experiments
| used 3M in the past - given it's been a decade since we broke
| the ice - but the stuff on station definitely has that
| blue/white branding on the inside of the roll.
|
| Just to give an idea of how oddly stringent we are down
| there, and how experimental a lot of this is - regular things
| break all the time even in relatively controlled
| environments. Simple solutions like that tape are preferred
| where possible. The year before I wintered, the IceCube
| summer crew had to replace over 100 PSU fans in the cluster
| with equivalent Noctuas because the OEM ones would fail
| weekly. We did the same with DOM power supplies - I think we
| use exclusively Meanwell now. Never had any issues with those
| in my deployment, so it made quite a big difference. It's a
| harsh continent :)
|
| [0]: https://www.nitto.com/eu/en/products/e_parts/heat_resist
| ant0...
|
| [1]: https://www.cambridge.org/core/journals/annals-of-
| glaciology...
| exmadscientist wrote:
| To be fair I never spent time on the Pole myself (though I
| did get to ship one piece of Irreplaceable Science Stuff*
| thataway...) (*Containing punch cards! Real genuine punch
| cards! ...as shims.), I just spent some time about a decade
| ago onsite in China with Jeff, where he talked quite a bit
| about driller's tape and how we didn't have any there in
| China. I tracked down the stuff myself based on his
| description, so I'm not surprised if I got the specific
| manufacturer wrong.
| twawaaay wrote:
| These specialty tapes seem expensive but when you need them
| you need them and nothing else will help. And then the price
| does not matter that much.
| sc970 wrote:
| civil aircraft engineers will carry this and 3M 425 aluminium
| 'speed tape' with them which covers most jobs.
|
| This is for sealing the cargo hold wall panels to ensure they are
| completely covered in flam proof materials. Normally a visual
| inspection is carried out each week to look for any damage in the
| holds.
| aasasd wrote:
| At the Baku Formula 1 race this year, the Alpha Tauri team
| taped together the rear wing on Yuki Tsunoda's car when it
| began flapping around--perplexing some fans. (Dynamic
| adjustment of the wing didn't work after that, of course, and
| more importantly Tsunoda finished thirteenth outside of the
| points, making the effort moot.) In the discussions, it
| surfaced that 'speed tape' is what's used in F1, also with some
| educating photos like an airplane turbine being sealed with
| such tape.
| Cthulhu_ wrote:
| 13th is still respectable, and if the people in front had
| issues they would have gone up in the ranks - better to
| finish in less than ideal circumstances than not try at all.
| aasasd wrote:
| Eh, five drivers retired from that race, including both
| Ferraris--so Tsunoda was in fact third last, ahead only of
| young Schumacher and Latifi. I mean, it was an okay try,
| but regrettably it went nowhere.
| markdown wrote:
| Young? I'm pretty sure he was racing when I was a child
| 30 years ago.
| aasasd wrote:
| That's the not-young one. This year's Mick Schumacher is
| Michael's son.
| sc970 wrote:
| For reference. MEA A320 weekly check https://masco.com.lb/wp-
| content/plugins/documents/A320%20WEE...
| bragr wrote:
| Tangent but this caught my eye:
|
| >Cleaning of vacuum waste lines with chemical cleaning agent
| and crushed ice
|
| Is there like a special ice cleaning slurry they use? Or do
| they just dump a bucket of ice and some chemicals in the
| lavatory and flush?
| sc970 wrote:
| Just some ice and chemical then flush.
|
| Skychem or Honeybee 76 is the chemical
| galangalalgol wrote:
| Some people use ice to clean RV tanks too. Flush a bunch of
| it then drive a while and let it bang around as it melts
| then drain it. Probably would work on a boat too.
| martyvis wrote:
| And in between checking maintenance log book and tire
| pressures:-
|
| Replace the Espresso Machine Frother P/N: 227431250 as per
| DEV 338A Part III
| jasonhansel wrote:
| IIRC it's surprisingly common to see bits of speed tape on
| commercial airliners, used to temporarily seal things off until
| they can be repaired more permanently.
| woah wrote:
| How much does this stuff cost?
| mrb wrote:
| 4 USD per yard: https://www.amazon.com/dp/B00LN84Q2G
| norvvryo wrote:
| Or $105 for 60yd
|
| https://www.digikey.com/en/products/detail/3m/361-3-4-X60YD-.
| ..
| chrisseaton wrote:
| Are aerospace engineers really working in 'yards'?
| walrus01 wrote:
| Flight itself is certainly done in feet and knots and such.
|
| But I would hope that fasteners on aircraft are all metric
| these days.
| tromp wrote:
| Glass cloth 361 sounds like a good name for a cloth to wipe Go
| (the game) stones.
| benj111 wrote:
| Sounds like a prog rock band to me.
| swayvil wrote:
| I need this tape. For my collection.
|
| Here it is at Amazon
|
| https://a.co/d/g6NchR8
| genericone wrote:
| Definitely one more tape to add to my bin of tapes: various
| widths of kapton, various vhb mounting tapes, anisotropic
| electrically conductive 9703, and ultra-slippery rulon tape...
| all of which I never use of course.
| capnahab wrote:
| and the helicopter leading edge tape, I have a 50m roll I
| have used 3 iches of.
| loxias wrote:
| Bi-directional filament tape (aka "hexayurt tape") is a good
| one. Bonds quickly to most things, has absurdly great tensile
| strength as well.
|
| I also have an "exotic tapes" bin. :)
| amelius wrote:
| Here's a list of other types of adhesive tape:
|
| https://en.wikipedia.org/wiki/List_of_adhesive_tapes
|
| For example, do you already have a toupee tape in your
| collection? :)
| FPGAhacker wrote:
| This the kind of thing I wouldn't buy at amazon. It's small,
| expensive and mechanically simple. A good recipe for
| counterfeiting.
| duxup wrote:
| >Silicone adhesive provides good holding power and clean removal
| across a wide range of temperatures
|
| Adhesives are amazing... I wish I understood them better.
| busyant wrote:
| agree. materials science in general is far more interesting
| than i would have guessed when i was a student.
| amelius wrote:
| But the design-fabricate-test cycle is much longer than a
| typical edit-compile-test cycle. What do you do in the mean
| time?
| marmetio wrote:
| This resource covers every level from pop sci to pro
| https://www.stevenabbott.co.uk/practical-adhesion/
| matgessel wrote:
| My favorite tape for attenuating bright or annoying LEDs is ruby
| litho tape (3M Lithographers Tape 616). It passes deep red light
| and dims bright green and blue LEDs to a faint red. It's perfect
| for green/amber status lights; the green "OK" is mostly blocked
| and the amber "Problem" shines through. Removes easily without
| leaving a mark.
|
| https://www.3m.com/3M/en_US/p/d/b40068069/
|
| https://www.amazon.com/3M-Lithographers-0-375-width-length/d...
| [deleted]
| rektide wrote:
| Yowza. 2.25" roll, 60 yards long is $280 on $bigsite. 33.75 sq
| ft. I guess $1.55/linear-foot of pretty wide (2.25") very awesome
| tape aint that bad but this is definitely a bit more than I was
| expecting. Sounds rad though, keeps planes flying, so I get it.
|
| Comments also mention 425 aluminum "speed tape", which seems to
| be between half to third the price.
| rowanG077 wrote:
| For all the grief 3M has put on humanity they still make some
| pretty neat stuff.
| bragr wrote:
| Sometimes I just bump around their site looking at all the neat
| stuff they offer and especially the oddball niche application
| stuff. They really have a glue or tape for just about any
| scenario!
| jasonhansel wrote:
| The best places for that are websites like Grainger and
| Fastenal. They sell all the things you see all the time in
| commercial businesses, but never realized you could actually
| buy. (Of course, they tend to be surprisingly expensive.)
| hedora wrote:
| Also, check out U Line. They are more packaging /
| facilities focused.
| anoother wrote:
| Genuinely serious and ignorant question: What grief?
| bragr wrote:
| As a huge chemical conglomerate with a long history, they've
| been involved in their fair share of pollution incidents and
| other controversies.
|
| https://www.bloomberg.com/graphics/2022-3m-pfas-toxic-
| foreve...
|
| https://www.reuters.com/business/3m-agrees-pay-98-mln-
| resolv...
| swader999 wrote:
| Management by post it notes comes to mind.
| exmadscientist wrote:
| 3M products are great because they always do what they say
| they're going to do. They usually even overperform by a large
| margin. They're one of my suppliers of choice for industrial
| applications or anything R&D where we don't quite know how
| good it has to be yet.
|
| 3M toxic chemical waste is also a core 3M product, and
| overperforms too. Some of their Superfund sites, particularly
| the C8/PFOA/fluorinated crud ones, are among the worst
| around. (I grew up on the other side of the city from their
| worst one! Yay!)
|
| And, like any company in the fluorinated chemicals business,
| 3M has overperformed at ozone depletion and greenhouse
| forcing. I can give them a pass on that particular one, since
| society as a whole didn't care much about that stuff until
| recently. I can't, however, give them a pass for how nasty
| Scotchgard was/is and how much of it was sprayed on/near me
| as a child. If you remember Scotchgard, don't look up what it
| really was or you might regret your parents' life choices.
| hinkley wrote:
| I recall once researching superfund distribution on some
| sort of thesis that the West Coast is Better, only to
| discover that Washington State is top ten for a superfund
| sites, and in large part because of all of the nasty ways
| we've come up with to preserve lumber over the years. Well,
| shit.
|
| It's no PFOAs but it's a class of chemicals specifically
| selected for preventing decay so it's up there. We really
| should know better by now.
| bbarnett wrote:
| People get mad at concrete re:co2, but compare its
| lifespan to wood, without preservatives.
|
| How many houses, without preservatives in the wood, would
| rot and be rebuilt, compared to 100% concrete/rock
| housing?
|
| And with each rebuild, comes all the wiring, plumbing,
| which is rarely recycled well, and recycling isn't
| environmentally cost free.
|
| ICF seems a good idea to me.
| SECProto wrote:
| > How many houses, without preservatives in the wood,
| would rot and be rebuilt, compared to 100% concrete/rock
| housing?
|
| This isn't a great comparison, as unreinforced concrete
| is not used for structures. If you're speaking about
| steel reinforced concrete, they usually have a lifespan
| in the 100 year range for something protected from the
| elements like structural walls (assuming the aggregate is
| well chosen to avoid sulphate attack). For comparison,
| much of the housing stock in my area is stick framed and
| is of a similar age - ~70 years.
| LgWoodenBadger wrote:
| Probably very few since interior wood is not pressure
| treated.
| walrus01 wrote:
| One can go down a pretty nasty toxic waste rabbit hole if
| you research all the attempts at chemical treatment for
| wood utility poles (for electrical grid and telecom,
| historically). Particularly a place like WA, OR, ID, BC
| having plenty of trees also has a mostly aerial
| electrical and telecom distribution last mile. And of
| course the companies that own and must maintain these
| poles have an interest in them lasting as long as
| possible...
|
| My understanding right now is they've gone back to more
| traditional tar/creosote impregnated and coatings.
| stevespang wrote:
| hinkley wrote:
| Scotchguard is the biggest black eye I know of. I don't know
| what's in it now but it used to be cancer in a can.
| markdown wrote:
| You (and most Americans... maybe most humans), have PFOA's
| (forever chemicals) in your blood that came from 3M.
|
| https://www.healthvermont.gov/sites/default/files/documents/.
| ..
|
| https://theintercept.com/2018/07/31/3m-pfas-minnesota-
| pfoa-p...
| amelius wrote:
| One of those 3 Ms must stand for "malevolence".
| hinkley wrote:
| There are times when they have been less recalcitrant than
| their competitors. Faint praise for sure but when you are doing
| PR bits for recapturing solvents for reuse instead of
| exhausting them or burning them, years before your peers are
| getting sued for not doing the same, you might not be angels
| but you're also probably not the devil either.
| wackget wrote:
| I've got a propane pizza oven which has some hot spots on the
| base.
|
| Could I use this tape to cover up some of the holes in the bottom
| gas pipe to reduce the amount of heat which hits the base?
| CamperBob2 wrote:
| Look for Thermo-Tec 13575 or similar part # at your local auto
| parts store. It will likely work better than glass cloth tape
| for that purpose.
| coryrc wrote:
| No, but I bet a metal hose clamp would work.
| userbinator wrote:
| Are you referring to the burner? That's far hotter than this
| tape can withstand:
|
| _Withstands temperatures from -65degF /-54degC to
| 450degF/232degC and intermittent temperatures up to
| 550degF/288degC or higher, depending on the type and duration
| of the heat source_
| amelius wrote:
| Any tape that can do it?
| murderfs wrote:
| Basalt tape might be an option: it's commonly used for car
| exhaust insulation.
| userbinator wrote:
| As hot as exhaust pipes get, I doubt it would compare to
| being directly next to an open flame.
| stevespang wrote:
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(page generated 2022-10-23 23:01 UTC)