[HN Gopher] 3M Glass Cloth Tape 361 ___________________________________________________________________ 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: ___________________________________________________________________ (page generated 2022-10-23 23:01 UTC)