Plastic Bottles?

I would like to melt them in an oven,and have them slump around a mold. At what temp should the oven be set ?

Question by jlrf5of7 9 years ago  |  last reply 8 years ago


Recycling Soda Bottles Experiments

Test 1: heat gun, "high setting"  Plastic Coke bottle SOFTENS + shrinks                                                                  -  at about 250F * Test 2: Heat gun " low setting** " Plastic coke bottle MELTS enough to  make gooey threads , and bubbles   -   at 450 to 500 F *according to a cheapy harborfreight laser thermometer. Not sure just how accurate it is in the 250  to 500F range. This device seems to read 5 degrees high at the 100F range. ** ironically, the temp is higher on the "low" setting. When the fan is moving less air, that air is hotter. One of the tricks, I imagine, might be to fully melt the plastic without burning it.   Suggestions welcome. Further results will follow.

Topic by Toga_Dan 4 years ago  |  last reply 4 years ago


Soda Bottle Change Purse

Store your change in this recycled plastic bottle change purse.  Throw this environmentally friendly accessory into your bag.  What a great conversation starter!

Topic by Carleyy 8 years ago  |  last reply 8 years ago


Built of recycled materials, but is it "green"?

Construction is nearing completion in Taipei of a plastic bottle building. Technically a temporary structure, "the world's lightest, movable, breathable environmental miracle" (say the designers) is also strong enough to withstand typhoons and earthquakes.  The building will eventually become an exhibition space. Much is being made of the structure's "green" credentials - LED lighting, and particularly the construction material; 1,500,000 recycled PET bottles. That sounds great, and in most of the news coverage of the structure (such as the BBC and Treehugger) it sounds like the building is built directly of bottles that have been re-shaped somehow (maybe squashed in a heated mould).  The bottles even have lids, and they talk about filling them with air, water or sand to change the thermal properties of the building.. It turns out, though, that the building material is not "PET bottles", but "PET bottles chopped up, melted and re-formed into much thicker-walled bottles intended solely for building", branded as Polli-Bricks. OK, still recycled, still greener than most building materials, but it smacks of spin to just say the building is built of bottles. The Polli-Bricks are impressive - individually nice to look at, and fitting together snugly "like Lego" - but there is no indication of how much energy is spent creating them.  They are made by Hymini, but the Hymini website flashes up all sorts of alarms with my firewall and anti-virus as an "attack site".  There is more information at Miniwiz as well, but some of the links there also trigger alarms. Maybe I'm being a wet blanket. It is a nice building, after all. What do you think? GreenMuze article

Topic by Kiteman 9 years ago  |  last reply 9 years ago


Can I melt a plastic jug into sheets for vacuum molding with a heat gun.Say a recyclable jug of juice or ketchup bottle?

I have seen the threads on homemade vacuum forming and was wondering if I could make sheets out of the recyclables I already have. Has anyone tried/ succeeded in doing this? Thanks

Question by lespaulclassic 9 years ago  |  last reply 6 years ago


Need help with home plastic smelting

I want to reuse some of the stuff that I've been throwing (bottles, plastic bags, etc) as well as plastic casings (from radios, CRT monitors, etc). Hope to melt/ mold them into usable parts.. What items in the garbage that are best suited for this? Something easy to work with at home / garage (low melting point, doesn't produce that much toxic fume, and the like) Btw, I've tried melting soda bottles, too sticky to work with... Any suggestion, help is greatly appreciated..

Topic by gyromild 11 years ago  |  last reply 8 years ago


DIY method for sorting shredded plastic flakes by resin type?

I've seen thatthe Coca-Cola company is promoting the keep the cap on PETE bottles, and that they use sink/float methods to separate the bottle from the cap after shredding since PET sinks and HDPE floats, now is there a similar (easy/ homebrew) test for other plastics like PP or LDPE, and by the way can 2 & 4 mix on a Melt? looking into doing some layered DIY proyect that involves the DIY Extrution of PET filament and other plastics for experimenting purposes.

Question by AskDaDoc 4 years ago  |  last reply 4 years ago


Using Plastic Bottles and Plastic Containers for Gardening (food) is it safe?

This is more of an answer than a question, well actually a starting point for you do to do your own research. I was just about to start using 2 liter plastic soda bottles and plastic tubs (hydroponics) for my garden. Then I began to wonder about BPA effects. As much as I wanted to use these and recycle, it doesn't look wise. In addition to all the toxic effects of BPA, the out gasing increases with the temperature. ... ie Harvest time over 100 degs and out gasing right into root structure. Cutting or denting plastic also increases the out gasing. Please do your own research about: 1) diseases linked to BPA, especially women 2) how the out gasing increasing with temp increase Please understand I am not here to scare you, but rather to incourage you to do the research

Question by tpyo 10 years ago  |  last reply 9 years ago


Cleaning Glass Cullet: getting the labels off already smashed bottles

Also posted in Green Category Short Ver: I'm looking for a way to get the paper, foil, glue, and plastic labels off the bits of glass that have been smashed at the recycling center.  Or, a cheap (nearly free) resource in KANSAS. Long Story: There are several good uses for recycling glass cullet, the glass is plentiful at the local recycling center, they get very little for it because there isn't a re-user within efficient shipping range. I was looking into buying recycled glass to use in a project, but shipping to get it delivered to KANSAS is outrageous $. I want to start off with glass as the aggregate in concrete countertops. That's a lot of glass - a couple hundred pounds per countertop. Yes, they're very heavy. I've internet searched to my bandwidth limit. No-one nearby does the glass cullet thing. So, I went to the local recycling center and picked up a couple of 5 gallon buckets of smashed glass. Really great. Now, how do I get all the labels off? Thanks, Ruby

Topic by rubyintherough 8 years ago  |  last reply 7 years ago


Cleaning Glass Cullet: getting the labels off already smashed bottles

Short Ver:  I'm looking for a way to get the paper, foil, glue, and plastic labels off the bits of glass that have been smashed at the recycling center. Long Story:  There are several good uses for recycling glass cullet, the glass is plentiful at the local recycling center, they get very little for it because there isn't a re-user within efficient shipping range.  I was looking into buying recycled glass to use in a project, but shipping to get it delivered is outrageous $.  I want to start off with glass as the aggregate in concrete countertops.  That's a lot of glass - a couple hundred pounds per countertop.  Yes, they're very heavy.  I've internet searched to my bandwidth limit.  No-one nearby does the glass cullett thing. So, I went to the local recycling center and picked up a couple of 5 gallon buckets of smashed glass.  Really great.  Now, how do I get all the labels off?  Thanks, Ruby

Topic by rubyintherough 8 years ago  |  last reply 7 years ago


Any good floatation buoyancy ideas for a shantyboat/boat (or dock)?

I have a few designs for recycled material and/or ultra-small shantyboats in my new book, as well as a few on the drawing board- as I plan to make a small shantyboat this summer....but flotation-wise, using recycled materials- any ideas (I've included a few in my designs already- 55 gallon plastic drums, 5 gallon buckets with silicone sealed lids, long runs of recycled pvc (with both ends sealed), screened in blocks of capped soda bottles, etc).... I'm sure there are a ton of different ideas and methods out there.... -Deek http://www.relaxshacks.com My BOOK is NOW OUT "Humble Homes, Simple Shacks, Cozy Cottages, Ramshackle Retreats, Funky Forts (And Whatever The Heck Else We Could Squeeze In Here!)"

Topic by Deek D 9 years ago  |  last reply 9 years ago


Are we focused on the wrong things?

I've seen a bunch of awesome instructables here that show how to take everyday objects that we might otherwise dispose of and make them into something new. Reusing or upcycling is a much better alternative to putting things in the trash, but some of the things I have seen here raise a few questions. Is it more green to make something new out of old drink bottles or soda cans, or to recycle them? Is it better to upcycle old clothes, or give them to a homeless shelter or Goodwill? I see a lot of instructables here that make new things out of recyclable waste, like soda bottles, aluminum, or cardboard, or out of things like old shirts or books that could be donated. Shouldn't the green focus be on ways to reuse things that can't be recycled or donated, things that are going to end up in the trash unless we find ways to reuse them?  I don't know if this is a topic that has come up before or if I'm thinking about it in the right way. I'm really not sure which is more green, recycling or reusing. I guess I'm just interested in a discussion of how we can find new uses for non-recyclables, like Styrofoam, non-recyclable plastics, etc. Obviously the best thing to do would be to stop buying these things all together, so maybe we should also have instructables on how we can get away from buying and using these products in the fist place. What are some green alternatives to common waste producing items? Reusing and recycling can only do so much. The real way to make a difference is to stop buying so much disposable stuff in the first place. Any ideas anyone?

Topic by OpenTheBox 8 years ago  |  last reply 8 years ago


Eco buildings for free?

I'm organizing a community lead market garden project within Wales (UK) to help those most in need within our community. We have little to no money for this project as almost 90% of the volunteers are unemployed, privet funding for our project is hard to come by  we have only found about £400, so we are intending to use as much recycled stuff as we can. I really need plans for a con and tire or wattle cob storage shed/ shelter for myself and my volunteers to hide out in when the weather turns bad And also some plans for a soda/plastic bottle green house. If you can help please do as i've not done anything like this before!

Question by brambles market garden 4 years ago


Instructables Website Improvement Idea

We post many instructables utilizing recycled content and in fact we first started using instructables for ideas using found materials.  This sort of works with the search function and/or using a google search. But it also seems like this could be an area of improvement.  Often times recycled design comes from finding a resource first (lumber, plastic,glass bottles) and then thinking creatively about how to re-purpose it into something useful or beautiful. For example, lets say you find a big batch of glass jars and you want to find projects that utilize glass jars.  You can do a search within instructables for 'glass jars' and find some projects.  But depending on how people titled their project or what key words they used you probably will not find all of the relevant projects.  This is especially frustrating when you are working with more obscure materials. Personally we end up running across projects serendipitously that work great, but should be easier to find. edit-moved to feedback upon suggestion

Topic by Two Paddles Design 3 years ago  |  last reply 3 years ago