Search for insulator in Topics


is polycaprolactone an insulator? Answered

Is Polycaprolactone ( aka "Friendly Plastic" aka "Instamorph" ) an electrical insulator? Thanks for any info

Question by foobear    |  last reply


Refrigerator Insulation?

Background: I was looking at Costco and they have their big semi-rugged totes on sale this time of year for like $6! The thing I'm pondering is sticking one in inside another and filling the space between with insulation.  But what to put in between? You're probably thinking what I'm thinking, Pinky:  Spray it full of Great Stuff foam. But then I'm looking at my fridge going... that thing is literally freezing inside and not even cool to the touch on the outside!  What kind of insulation do they use?  I'm guessing something trickier than Great Stuff, what with Energy Star ratings and all.  In short:  What is it and where can I get some!??

Topic by PS118    |  last reply


Insulating Ducts

I was thinking about opening one side or the top of the "metal box" that "insulates" the out/intake ducts of HVAC unit, and filling that space with styrofoam popcorn used for shipping fragile stuff. We recently had a couple of trees cut down in the backyard and now our HVAC unit is completely exposed to the sun for most of the day! We bought a shade to set up but I was thinking the styrofoam would just be a little bit more of a help! What do you think? All ideas and advice would be greatly appreciated!

Topic by thickneckarts    |  last reply


Fully insulated channels?

I was looking to TENS units for experimentation and to try to rid myself of knee pain without meds. I was also looking into potentially building one due to the fact that i could probably do it cheaper depending on how i decide to do it. One of the TENS units i saw said that there was dual channels that were fully insulated, while another one i saw said duel channel but was not fully insulated. What does this fully insulated channel mean, and how would i do that in a DIY TENS unit?

Question by pmk222    |  last reply


insulating radiator cover

I'm looking for suggesting for upping the r-value on top of my radiator. Every window in my apartment has a radiator underneath it. I'd like to have some plants by those windows ('cause y'know, they need light and all) but I'm concerned about heat from below drying & killing the plants. A couple of the radiators have covers, but they're metal, so no insulation there. Ceramic pots may provide some insulation, but I'd really like to lay down a layer of some kind of building insulation proper just to be safe. The question is, what kind? Batting won't work, and the foam insulation panels I've seen at the hardware store I know are a fire hazard... plus not too fond of plastic-type materials. My dad suggested something he called "thermal block" which I believe is aerated concrete panels, but which I can't find a source to purchase. I'd like to spend less than $20, preferably less than $10 on this. Please help!

Topic by timeismine    |  last reply


DIY Home Insulation

So I know I need to better insulate my attic for the coming winter but, money is tight and the to-do list is growing so I began thinking of alternative or DIY materials to do the job. I know Cellulose insulation is shredded newsprint treated with chemicals to make it mold and creature resistant, and on a small scale maybe that process could be a fun experiment, but not for 1000 sq ft. My next thought (and current favorite) is to acquire styrofoam packing material (box inserts, packing peanuts, un-used food and drink containers) and mill them up to about the in to some uniform size. Then get some cheap plastic bag/ tube material and fill strips with a couple of inches of styrofoam. Then the blanket o’ foam could just be laid out over the existing insulation in the attic. Now, before I start this endeavor I thought I would check with the instuctable think tank to figure out: A) any better ideas 2) what R rating a 3 inch loose fill blanket of styrofoam and plastic would have III) Is this a terrible idea due to moisture being trapped under the plastic Also in a previous forum someone suggested re-routing their dryer vent to the attic and I was wondering if anyone had tried that and/or anyone’s thoughts on that. -Odo

Topic by Odovacer    |  last reply


Mecho Shades - Keep heat in in winter?

We are building a 4 seasons room. Contractor recommended Mechoshades - I know they protect from sun and heat in summer, but do they keep the heat in during the winter?

Question by polkataco    |  last reply


Transparent Electrical Insulator Film

For a project of mine I need to apply a <1um thick film that is electrically insulating, but transparent to UVC & UVB (and preferably up to visible). Does anyone have any suggestions?

Topic by SillyInventor    |  last reply


Attic insulation-should I insulate floor to ceiling?

I am in Conn. and the person helping me has said the roof needs to breath. This is a 4th story on a 3 family house. It is A shaped. I plan on covering the insulation after to finish the space off for storage. I think this will keep the 3rd floor warmer. The floor is insulated, but I wanted to do the wall which makeup the pitch of the roof. I have never heard of the roof needing to breathe before. Is this true or can I go ahead and insulate everything?

Question by Stacey 131    |  last reply


Simple electrical insulation question. Answered

If I have a 10AWG insulated solid copper wire and the THHN insulation is rated for 600V, should I worry about a 5000V 60ma current arcing straight through the insulation if its coiled in a helical form?

Question by imMrDude    |  last reply


Insulating under-house garage?

Hi my house sites on top of the garage and has an open stair and hatch doorway into our living toom. Whats the best way of insulating between my garage and room? Ive been told insulating the garage door is a waste of time and i should concentrate on the connecting door but want to know if anyone has any other suggestions that wont mean i have to buy/make a new door. thanks Mark

Question by worktops    |  last reply


Remove insulation from wires

Hey folks, need some ideas to build a simple wire insulation removal system. Has to be so I can peel the inulation off wire from 10 gauge to the ribbon wire in computers as the only way to do it now is burn at that is not a good idea.

Topic by wisconsinjimmy    |  last reply


How to insulate a cooler box

I have just bought a plastic cooler box. It is two boxes in one: an inside lining, an air cavity, the outside case and  of course a lid and handle.. I would like to improve the insulation. I have a 750ml can of expanding polyurethane foam which I thought of spraying into the cavity. It will dry in an hour. I can work out the exact volume  to be filled with  the foam by prefilling it with water and measuring the amount of water that pours out of the cavity , but I do not know the best way to apply the foam. Any ideas, please. For example should I wrap the inner box in anything before pushing it into the wet foam that I  spray against the inside of the outer case? Robin

Topic by R89163    |  last reply


INSULATION.. Any way to make ATTIC and WALL INSULATION with recycle Items ???

Anyone knows any way of making cheap or free attic and wall insulation from recycle items? I know of a company that makes it out of recycle shreaded jeans. But then with what will I shread them and what will I wear after shreading them?...lol It will cost me Over $600.00 for a 30x60 ft attic and thats the cheapest being on sale now at Lowes and Home Depot installing it myself. The spray on foam insulation cost an arm and a leg.. Then again I will need them for making my other projects.. haha. I'm sure someone out there knows a way of making it or may have an idea of makin it with recycle material.. thanks.. This will be a a cool experiment or may I say a warm one.. =- }

Question by PitStoP    |  last reply


a thermal conductor that does not conduct electricity? Answered

I am looking to heat water to a boil in a pipe, using nichrome wire. the nichrome wire will be wrapped around the pipe. my problem is i don't want to short circuit the nichrome wire, so i need to insulate it, but i need it to still transfer as much heat as possible to the pipe.   any suggestion would be great, including other ways to, using electricity, bring water to a boil within a pipe. *UPDATE: does anyone know of an affordable insulating paint or coating?                     i found some (called Glyptal) but it cost $50, which is too much for me                    rust-oleum is an enamel paint. will it insulate?

Question by jg156    |  last reply


Can shredded paper be used for insulation?

I was up in my attic the other day and noticed that one of the rooms in my apartment has no insulation above it and there are a few bare patches over some of the others. could i dump bags of shredded paper up there to add some insulation value?

Question by armourkris    |  last reply


Need help with DIY cooler insulation

Long time fan, first time poster. I'm looking to convert a cool-looking vintage toolbox into a heavy duty lunchbox. I'm currently prepping the metal for paint and looking into what I can use to insulate the box. I've thought of: * spray foam insulation: Good coverage and thermal protection, but not water-resistant enough (think condensation) * fiberglass insulation (pink stuff): Good, but unsure about how cold it will keep things * styrofoam: probably the one inch sheets used for basement walls below grade. Best solution so far. Before I do something that will likely mean stripping the box clean and starting over, I thought it best to see what others might have to say about this. Any and all help is greatly appreciated!

Topic by Jiggsy    |  last reply


Insulating home window tint for cheap?

Winter is coming like they say on the wall...For me it means I need to find some option to increase the insulation rating of these old windows.3mm thick glass in not really fully sealing sliding frames is a pain.For my last place I had the permission to put proper foil on the windows at my costs.I guesstimated what I need and just ordered the required amount on a roll.That was a few years back though and now prices exploded.Last time I had to pay around $3 AU per meter, now the same material is quoted at $14.95 AU per meter :(My windows go from floor to ceiling and at these prices covering them would cost me more than a months rent.I am sure insulating window tint is available outside AU as well.Does anyone know any sources with half decent prices and low shipping costs?Found one supplier in the US willing to ship to AU but was quoted over $100US for the shipping of one roll (120m).Means all up I would be looking at still a bit over $600US plus postage and there must be cheaper options :(

Question by Downunder35m    |  last reply


How should one insulate a garage door?

There are pre-made kits to insulate most garage doors, and one can also cut "board" style insulation to fit. What is the best insulating material and fit and value for this job?

Question by justible    |  last reply



Insulating tape, better than electrical tape

I'm looking for an electrical insulating tape that I can put over some exposed wire that will affix and stay put on plywood. Right now I'm using electrical tape, but the adhesion to the plywood surface isn't working that well. Anyone out there have ideas or suggestions?

Topic by phidgetsinc    |  last reply


How to insulate a water pipe in an uninsulated building?

I have a water service pipe in an uninsulated building, how do I keep it from freezing?

Question by beancounter    |  last reply


Is There an Etchant-Resist That Can Be Left On PCB As Insulator?

Howdy is there a kind of resist that can be left on the pcb after etching (except the solder points), as an electrical insulator? can it be used with the photo-etching method, or only heat? thanks

Topic by johnyradio    |  last reply


What's a good way to recolor a wire's insulation? Answered

I'm making a portal-themed project. It uses two wires, ethernet, and USB. I have a blue ethernet cable, so I thought it would be cool to have an orange USB. Anyone know a good way to recolor a cable's insulation? I thought painting would be imperfect, since the original black USB might show through. But if nobody has anything better, then I guess painting would have to be it. Thanks, and, as always, Don't Forget To Be Awesome! EDIT: Could I just use normal household paint?

Question by 4lifenerdfighter    |  last reply


DC motor core insulation from windings? Answered

I have recently attempted to rewind an old 240V AC drill motor to a low voltage DC one. After winding the 12 coils I found that all of the windings were shorted to each other, I'm assuming this is due to the thin enamel coat on my wire breaking against the edges of the steel core. As a result I need to rewind it, but I am unsure what kind of insulation to use, tape, some kind of glue or sealant, varnish, I was thinking a hardware store type product nothing online or that costs a lot. 

Question by The MadScientist    |  last reply


Thermal insulation/cover for heating water bottle

I am building a water bottle that can heat water inside up to 80 degree Celsius for my engineering project. The design of the bottle is as follows:1. an aluminium or steel flask2. heating coil at the bottom of the flask(for heating)3. battery and circuit for the heating coil is located below the heating coil.I want to design a cover such that a person can hold the bottle when the water is hot. Also, i want to protect the circuit and battery at the bottom from the heating coil. How can I do this? (As of now, i was thinking to spray polyurethane foam around the bottle and use a plastic cover. Also, using a polystyrene board below the heating coil to separate it from circuit board/battery). Are there any other insulating materials that can be used? Considerations for cover and insulation: 1. Should be able to hold the bottle 2. Wash the bottle (hence, waterproof)

Question by NagarjunG4    |  last reply


Can I insulate a wall with air pillow cushions?

I want to insulate a wall but don't have much money to spend so i'm trying to find alternative ways to buying insulation from a shop. I have loads of those air pillows/cushions that are used for packaging fragile items in the post and wanted to know if I could use them for insulation? Mainly the effectiveness but also safety. Any comments would be really appreciated.

Question by zach107    |  last reply


say dry silicaWhat do they use in black boxes as insulating material?

Please do not say dry silica / aluminium / tungsten / S_steel. Im looking to insulate electronics from harsh temperature environments and it is crucial to find a light weight, insulating material.

Question by deadend_designs    |  last reply


What types of oil can be used for high voltage transformer insulation?

I am modifying microwave transformers for a higher voltage to drive a Tesla coil and I need to know what kind of oils for example vegetable or paraffin can be used for high voltage insulation in the transformer to protect it? To what voltage will it insulate?

Topic by The MadScientist    |  last reply




Would bed pillows make good insulation for a roof?

I'm planning an earthbag house, and with its vertical walls, I need a roof. I'm going as cheap as possible, and I wondered if this would serve as a solution? I can get pillows from Walmart for about $5 a piece.

Question by jeniferchurch    |  last reply


Is The Insulated Wire In An RCA Cable, The Negative or the Positive One?

I was just trying to build an RCA to USB cable but I am not being able to find the polarities! Please HELP!

Question by mraghib    |  last reply


Any simple shed plans using mattresses as insulation?

There are so many free mattresses out there, which would be great for wall insulation, but im trying to figure out a simple method for building walls that will fit them and still be able to attach the drywall/plywood. plus i dont want the walls to be much thicker than the mattresses are already.

Question    |  last reply


can fiberglass insulation be used to make a bow and arrow? Answered

I know they sell fiberglass mats that u use with epoxy for making things out of fiberglass but im wondering if i can use fiberglass insulation in place of the mats because i can get insulation for free and the mats r too expensive for me. and also, please dont answer my question by telling me where i can buy the mats or other ways of making a bow, instead, just answer the freakin question or dont reply to this question at all. thanks :)

Question by MisterHankie    |  last reply


What to do with large envelopes insulated with bubble wrap?

So I have a bunch of about 7x8 inch envelopes that have a layer of bubble wrap inside them, because my brother orders Ubuntu and Kubuntu CDs whenever a new version comes out. What should I do with them? I could use them to ship CDs again, but I don't have any need to do that. HALP.

Topic by Aeshir    |  last reply


Can you insulate the primary coil of a Tesla coil?

Hello,    I am trying to build a tesla coil using a new design relating to a thesis paper I am working on. Due to spacial restraints my primary coil will be close to the secondary coil. I know I have seen others use insulated braided copper wire as their primary. I want to stay with 1/4" copper tubing if at all possible so I wanted to ask what affects it would have if I used heat shrink tubing on the copper tubing. I am aware the higher frequency voltage runs along the skin of the tubing since that is least resistive at that point. A for the power and caps I am using the following: three NSTs of which two are 15kv @ 30 miliamps and one 12kv @ 30 miliamps, 13 CD 2000VDC @ .15nf caps on each 15kv NST and 10 of the same caps on the 12kv NST. The spark gap is static for now.  I want to prevent arching as much as possible in the small space. Any advice is greatly appreciated. Some of the information relating to the thesis paper I cannot release due to a serious concern of being scooped before publication.  Thank you. :)

Topic by XsFacade    |  last reply


fiberglass for resin forms VS fiberglass for thermal insulation?

I see woven or braided fiberglass (in tube, rope, sheet, band) for use as 1)  a seal where the seal is going to be exposed to high temperature (eg: stove door gasket); 2)  for use as a thermal guard (eg: tubing around electrical wire); 3)  and then used for it's' strength in resin impregnated sheet (egs: roof sheeting; mould making; boat building). My question is whether there's any difference between the fiberglass fabrics available for thermal and resinous uses? Are they interchangable? Fiberglass is fiberglass no?

Question by balisticsquirel    |  last reply


I'm looking for the ideal insulation material to keep heat onto the kiln inside a calciner ?

I'm making a calciner that heats gypsum to a heat of 350 degree Celsius. A burner will be used to heat the rotary kiln to a constant temperature of 350 degree Celsius. I'm looking for the ideal insulation material to make the housing of the keep the heat onto the kiln inside the calsiner. The material must not be to heavy. I'm looking for a material something like fireclay, but something more ideal to build a housing of.  The insulation will be put inside the housing like in the image.

Question by DanieS6    |  last reply


My kitchen peninsula has a soffit that is packed with insulation - - what's the best way to remove both? Answered

Apparently the soffit is part of the ceiling - - i.e., open on top - - - that's why it's filled with blow-in insulation. I just want to remodel our kitchen - - which includes removing the peninsula and the problem soffit/insulation. Maybe the biggest problem would be to replace the insulation when I'm done.

Question by gls5807    |  last reply


What is the best way to strip insulation from ribbon cable?

What is the best, quickest and easiest, way to strip the insulation from rainbow ribbon cable without damaging the wires? I want to bare the wires for connecting LCD displays to computer devices.

Question by Johenix    |  last reply


How do I strip a small amount of insulation from the MIDDLE of a wire? Answered

I have a plan for a small strip of low-voltage lights. I want to solder in-line to the main wires, so I need to strip about 1/2" of insulation from the wire at some distance from the end. What is the best way to do this with minimal damage to the copper core? Graphically: ======================---------======================--------======================-------======

Question by yoyology    |  last reply


Would a glass, vacuum-insulated thermos be able to withstand the extreme cold of liquid-air?

I am in the middle of designing a system to produce liquid air using the von linde process. the termos would not be under any pressure, but it will get quite cold. can a thermos using a glass vacuum insulated inside be able to withstand temperatures below -180 degrees celsius?

Topic by pedrogabman    |  last reply


Can I use #14 solid copper with THHN insulation as my winding wire for the secondary on a Tesla Coil?

I have a roll (500 feet) of #14 solid wire with THHN insulation and would like to use it as my secondary winding on a Tesla Coil for a school project.

Question by mbrown1465    |  last reply


Can a glass, vacuum insulated container withstand temperatures in the -180 degree celsius range?

Is it possible to store liquid nitrogen and oxygen in a vacuum insulated container for a short period of time? i have a thermos that i though might work, but i want to be sure that im not going to have the thermos explode in my face when i try it. this is an old beefy thermos that can take at least 190 degrees celsius, but im not sure about the other direction.  

Topic by pedrogabman  


can you use 6 awg insulated wire for the primary coil of a tesla coil? Answered

Its a multi strand wire, not the solid type.

Question by DELETED_DELETED_kruser495    |  last reply


Extra Attic Insulation. Can I add polystyrene panels over existing fibreglass batts?

I have access to 6in thick polystyrene panels which I would prefer to re-use rather than take to the garbage dump. Can I lay them over existing fibreglass batts to increase the insulation in the attic ? The house is 4 yrs old so is up to code and is located in Ontario, Canada where the winters are cold. I'm worried about causing a moisture problem.

Question by Blakie2    |  last reply


What material should you use to re-insulate a chipped/burnt toroid ... when replacement is not an option? Answered

Here are pics of said toroid - http://imgur.com/a/Z0hC8 - I'm planning to replace the wrapped wire, just need advice on what to use to cover up the broken insulation on the actual toroid?  I've tried nail polish, however it heated up and smoked against the bare wire (hadn't yet rewired it when tested). The toroid is on a Power Supply.  Replacing the entire PSU is not an option.

Question by cowpuck    |  last reply


frenchcrawler: can a insulated basic electromagnet be used to fish a metal object in a pipe in 8 feet of water?

Just want to know if this electromagnet  can be used under water

Question by frankenyack    |  last reply


what is the best material to insulate your walls with? does styrofoam work well for keeping your house warm?

I have thick brick outside walls that will freeze in winter. I want to cover them with wood and some insulation material from the inside, hoping some of the heat from my oven will stay in the house. I can imagine styrofoam would work -which would be nice because it's cheap-, but i've never tried it. glasswool is too nasty, I'd rather not get into that. does anyone have experience with this?

Question by vlaafiejaa    |  last reply