Mold materiel that is safe for the oven and will not stick to lexan/PETG? Answered

I'm making a helmet, and I hit a wall: I need to make the visor. I have the helmet made, and I need to make a negative mold of the visor, which I would put in the oven, with the PETG/lexan to "melt" the plastic to form over the negative mold in the home oven. But, again, issue is what mold materiel can I use which will be safe up to 300 degree Fahrenheit and not stick to a semi-melted plastic?

Asked by DoctorWoo 5 years ago


what plastic is good to create sculptures (That will be used as molds)?

Hey. i need to create a plastic that i can use to create a mold . something like play dough , only that after some time it can get hard, to be used as a mold for ABS or acrylic.. can anyone help me?

Asked by settra 5 years ago


What process would be best to make this mold???

New here so sorry if its in the wrong spot but I need to recreate the molding in this picture. Now it doesnt have a ton of detail so it should be fairly easy to make but I have no idea what to do. Can I vacuum form it and then use that piece to pour a mold. Can someone post some good links on what to do? Thanks John [IMG]http://i10.photobucket.com/albums/a117/jleews6/images.jpg[/IMG]

Posted by 85 GT Kid 6 years ago


i want to make a mold i can pour plastic into, what do i use? Answered

Im working on recasing my palm tungsten T, and so i was wondering how exactly i should go about making the mold to cast the parts. im thinking i'll have to make a prototype of the part with something like clay, after its been baked, of course. then what can i use to make the mold? ive seen plastic pellets you mix with water and it makes well, plastic that you can pour, and i was thinking i should use that for the final product. but what should the mold be made of? it would need to be easy to get the part out of it, but it cant be too easy or else it might not set right. ideas?

Asked by zack247 6 years ago


when cutting a mold for jewelry i am not getting all the details?

I am confused with this one, i have vented it (from a couple of times to many times) i am using a silicone rubber. the piece is only 1 inch but has a lot of writing on it. i have cured the mold properly. i have played around with wax temp. (i use a injectomatic) i have also done alot of different pressure tests. need help badly thanks

Asked by hummis 8 years ago


I want to make a mold of a cement retaining wall block.

I was thinking that vacuum forming would be the best way to go, but not sure about the textured face of the block. I'm also not sure what the best material would be, something flexible enough to peel off the block for re-use, but sturdy enough to not need a form around it. Any ideas would be greatlly appreciated!

Asked by skip67 9 years ago


Cast Stone, Outdoor Repoduction with Fiberglass

I would like to reproduce a hand rail made out of concrete, cast stone; any suggestions as to how I should go about reproducing the cast stone rail and baluster?

Posted by azalldesign 10 years ago


toilet seat mold

Does anyone know where i can purchase or how to make a toilet seat mold?

Posted by transguy 9 years ago


Is it safe to make a mold for food out of acrylic? Answered

Is it safe to make a mold for food out of acrylic? Will the acrylic leave an after taste? Will the food be safe to eat?

Asked by adamgillies 8 years ago



How can I remove mold from silicone grout around tub?

The mold seems to be embedded into the grout. How do I get rid of it?

Asked by prd409 6 years ago


im trying to make wax molds for slingshot ammo but i dont know how Answered

I need help to make a round mold for wax spheres but i dont know how i need them the size of marbles

Asked by sharlston 9 years ago


Mold for Polyurethane Resin?

Hello, I purchased a Polyurethane Resin mix (Part A/Part B) to create a guitar. I’m wondering though what material I can use to create the Mold? I normally work with Wood, so this is all new and exciting, but oh so confusing. Can I create a mold out of wood and coat it with a silicone spray? Do I need to use some other non-porous material? Any insight would be excellent. Thanks, Rich

Posted by Coda24 8 years ago



How to make a mold

Hi there! :) In a couple of weeks I'll receive my first 3D printing! I'm so excited about it! One of my first projects I would print is a Flower Pot and... I'd also like to print a mold of this Flower Pot but I have a question: > First check the image of the Flower Pot dsign How should be the design of the mold to allow me to make a new models with concrete (cement). I don't know how to solve the holes. Look, if I do with two external parts and one internal part... how can I do the holes and after take out the mold? I will think more about it but, if you have any idea... it's going to be great read it!! Thanks a lot!! =)

Posted by Kitus87 1 year ago


A material or molding substance that can dissolve in water not to fast but decently quick an floats in water

I am trying to build a prototype dnt want to share to much about it hoping to sell it an patent it n e ways i am trying to figure out a material where i can mold it like clay an make like  obkects out of it an at the same time if i where to pour water on it the item would dissolve at the same time float so say i put a snow ball in the tub an it was packed well an it floats an i want to shoot it with a water gun a good water gun an made it dissolve thats what im trying to get at basically with the material i need it floatable an non harmful an dissolves an can be molded please help

Asked by JamesDRobbins 7 years ago


What are some things you can do with a plastic mold?

I recently bought a Doctor Who "Flesh Bowl Figure Creator" (www.youtube.com/watch?v=b-Bu8qhVgas) . However, the powder for it doesn't work right. I figure there are some ways to use a plastic mold like this, so do you guys have any ideas/ suggestions?

Asked by thedoctor42 4 years ago


Can I use hardware store silicone / rubber for moldmaking?

I need a flexible, reusable, poured mold but it needs to be as cheap as possible. The RTV silicone that I see available specifically for moldmaking is too expensive for me. I know that there are lots of different formulations of silicone and rubber for home improvement and automotive use, and most are inexpensive. Are any of these good for making molds? Which is best?

Asked by Eriswerks 8 years ago


Alcohol bottle in a block of ice: How can I make a mold ?

I tried by making a rectangular wooden box, cut in half, with piano hinge on one side and clasps on the other sealed with silicone on the edges. Very hard to get water tight. I somehow made a successfull mold, but not good for multiple use. Water seeps through the wood (even after varnishing), i am looking for an easy solution.

Asked by Dimitrios 8 years ago


Fiberglass and Lexan/PETG in a home oven? Answered

I'm looking to make a helmet here soon, but, I need to make a visor for it. I know I can use a heatgun to shape Lexan/PETG, however, I have heard that using an oven is a better choice. My question being, if a fiberglass mold/template save to put in an oven? It would be a pepakura process mold. After reviewing some steps, I need to amend another question onto this: would it be better to use another material for a model? Again, I would be using a home oven, and using PETG/Lexan. The new material would have to be castable, as I would make a positive mold of the inside of the visor, to composite for the thickness of the PETG/Lexan.

Asked by DoctorWoo 5 years ago


Need a cheap way to make a mold of a fairly large object Answered

I've never made a mold of anything before, but I have a statue that I would like to make a replica of. The statue is about 18 inches tall, 5 to 6 inches wide at its widest and 6 inches deep at its deepest. It also sits on a 2 inch high 10x12 base, but I don't really need to cast the base, I could fabricate a new one very easily. I read the featured instructable for making silicon molds and it was very useful, but I think silicon would be very expensive for this big an object. At least 3 gallons, I'm thinking. That would run at least 300-500 dollars, and I'm looking to spend more like 50-75. Is there another technique, or another material I could use? My sculpture I think is cast from resin, and I'm fairly sure it's at least partially hollow. It's not intricately detailed, but it's hand painted, so I don't want to use anything that will damage it. Could plaster work? Rubber? Cheaper kinds of silicon? What sort of material would be best to cast the replica out of once the mold is done? I'm open to any kind of material, in fact I'll probably try a few different ones. Plaster, resin, maybe plastic or even rubber if that won't harm the mold.

Asked by UselessTrivia 8 years ago


i live in fl. i have fungus/mold on some trees . it's mostly green.(light ) . what is this? how do I get rid of it?

I call this tree greybeard, or grandfather beard. It flowers in the spring. Then it has long green leaves through summer

Asked by 9 years ago


Steps to creating a custom project enclosure

I'm in the process of trying to design a prototype for a custom electronics project. I have a 3d printer at my disposal and I would like to print out my initial prototype and at a later time get the enclosures injection molded. I'm looking for some advice on a starting point. Is there some sort of standard model I can start with? or do people typically always design these from scratch. Does any one have recommendations on a place that could do a short run of injection molded enclosures? any advice or starting points would be helpful 

Posted by ouchthathurt 4 years ago


making a (more) permanent mold from cement/concrete for aluminum castings?

Hey I've been looking into aluminum casting for a while now (done it once or twice with different "furnaces")  Now I'm reading alot about lost foam casting (sounds interessting too) But I was thinking; do you think (/have experience) that I could make some kind of "permanent" mold out of some kind of cement/ concrete/ fireclay mixture for casting similar pieces several times?? I was thinking, when you make the furnace(s) you make a cement/ concrete/ fireclay mixture that can withstand the temperature, so shouldn't it be able to withstand the temperature of the aluminum being poured into it also? (and therefor be able to make the mold out of) - I was thinking to use a special type of cement ment for use around a fireplace. What do you know/ think of the idea? - and also; is there any (other) cheap/ "easy" way to make permanent molds for several similar castings? (at home/ the backyard) PS. not important but I've made/ used a coal fired furnace, a gas (butane) fired furnace and now I'm about to build an electrical furnace (for the sake of expence and time of heating up)... I'm trying to make some casting sand/ green sand, but the ingredients looks to be rather difficult for me to gather (In Denmark Europe)

Asked by lordl9999 5 years ago


I want to make my own air freshener dispenser

The finsihed product has to be in 2 parts because it has to open and close so I can take the air fresheners in and out. I'm using moldmax to create the mold. My challenge is that once the 2 parts are completed i dont have  a way to connect them together. Any suggestions?

Asked by JerryG74 9 months ago


Just a THANK You and a picture

I just want to say a BIG thank you to all who answered my two questions about wire (for a soap cutter), and about making a silicone mold (for my soap) I wanted to show you a picture of some of the soap I make. This is NOT "fishing" for compliments, or to sell anything. I just wanted to give you an idea of what I do really no need to even comment

Posted by MaryT8M 5 years ago


Reinforce/modify polyester?

I am currently working on a project that uses polycaprolactone because it has a low melting point and is easily moldable. The problem is once it has been molded and cooled it is sometimes too thin to be as firm as I need it to be and will bend when force is applied. Is there some way to mix the polycaprolactone with another substance to make it more firm without sacrificing much of its moldability or altering its melting point much? If not, is there another material with similar properties that I can substitute?

Asked by Sserdna 3 years ago


Custom Latex Masks Made

Hi, I am offering my services to custom make and paint any custom latex masks you would like. Will just cost the materials to make the mold and the first mask. I will post you your mask, and give you an estimation of how long it will take to complete, making a decent mask takes time so dont expect to have it in a couple of weeks, I have to do this in my spare time and i like to take my time to make the best sculpt i can before i put any plaster on to make a mold. -------update------ 19-09-2012 if your intrested in having a mask made pop me an email chris@chrisfrydesign.com your likely to get a quicker reply via email than commenting on here ;-) have a look at my instructable on making masks using 2 part molds which should give you some idea of the costs and time scales involved. https://www.instructables.com/id/How-to-make-a-Latex-Mask-with-a-2-part-mold/ --------------------------------- Ok i have been asked a few times can I make masks of actual people, the answer is that I prefer not to, replicating a human face for me is very tricky, having said that, a spitting image style replica shouldnt be too much of an issue. http://img.thesun.co.uk/multimedia/archive/00427/spitting_image3_682_427439a.jpg how long would it take? the answer is between 1 and a half to 2 months depending on the size and complexity. How much would it cost? Hard to say again it depends on the size and complexity but remember you would be paying for a one off mask and your asking because you either dont have the skills to do it or the patients or the time, so if your expecting a mask for £20 (gbp) think again, no one is going to work their ass off producing something which takes a long time to create for a small amount of money, the materials alone are very expensive, please remember this when you email me and I qoute for your mask.

Posted by n1cod3mus 6 years ago


Tongue and mouth model.

I work at a speech training center, and I need to illustrate how to make certain sounds. I thought the best way was to use an adjustable tongue and cheek model. Doesn't have to be a real replica of a tongue, just something to illustrate the tongue and cheek positions for different sounds. Needs to be adjustable. Any ideas? Thanks.

Posted by naim 7 years ago


i wish to create a life statue/mannequin for my final art project how would i go about doing this ?

I wish to create a life statue/mannequin for my final art project, i had the initial idea of using a manneqin torso and then creating legs/arm/head etc, anyone have any better ideas ? cheers

Asked by setha123 9 years ago


Liquid Plastic

I work at a BSA summer camp each year teaching archery and a little class about things not to bother while at camp. I have to find these bugs/spiders each year and catch them at some risk. I would like to have a perm. display for them to look at with out having to worry about me or them getting bit. I have did a search for said bugs on line but found nothing. Does anyone know how to use the liquid plastic to encase bugs? Please email me at karm1674@yahoo.com. Thanks.

Posted by Shenanigans 10 years ago


What can I use in place of acrylic for my mock-up/prototypes?

I'm working on a custom-made pencil case and I intend to do the final version with a lasercut acrylic-sheet that's been shaped around a positive wooden shape. I'm still working on the details of how I want to place the cuts and lines, and would love to be able to make some quick prototypes that I can draw on and carve out (maybe something paper-based?), but I'm short on ideas of how to do this and what materials and techniques to use. I've added an image of the positive shape and some sketches (sorry for the crappy quality).The shape can be split in the middle to allow it to be pulled out at the ends after the acrylic sheet has been shaped around it,

Asked by Flark 8 years ago


Upcoming Sugru Contest Giveaways

*************************************************** We have no more Sugru to give out. Thank you everyone who requested some I'm looking forward to seeing all of your projects! *************************************************** We've been spending some time recently chatting with the great people over at Sugru, trying to figure out a good contest to run.  However, in talking it over with them, we have come to realize that if we launch a Sugru contest, everyone would have to buy Sugru in order to enter it.  No one was fans of this idea, and so we came up with am alternate plan. Before running the contest, they would ship us a box full of Sugru Smart Hacks Super Packs for us to send out to selected authors. We've already given out these packs to a number of authors as a way of saying thank you for the amazing projects they've submitted, but we still have some left.  So, here's where you come in!  We want to offer these to anyone who wants to create a project using this awesome material! This is first come, first serve.  We have under thirty packs to give out, so they might go quick.  I'll update this post if and when supplies start running out or are gone. Our only request of you is that you use what we send you to make something awesome and enter that something awesome into the Sugru contest when it finally does launch.  Of course, entering the contest will also make you eligible for a number of other prizes. So let me know in the comments if you would like one, and I'll send you a prize notification that you'll need to fill out.  Best of luck, and happy creating! Current Count: 000

Posted by StumpChunkman 7 years ago



Wood Mold? Answered

What should I use as a release agent for a wood mold?

Asked by Ckgourmet 1 year ago




Can these molds be used for metal? Answered

Hi. Would these molds melt if used with metal?

Asked by kennaj 1 year ago


food-safe molds? Answered

What materials are used to make food-safe molds please

Asked by tamtrysha 1 year ago



what about the molds? Answered

Can the molds be reused after making one batch? Or will it be wasted after one go because of all the concrete stuck to the mold

Asked by Technovation 1 year ago


Making a mold out of foods? Answered

Could I make a mold using a food? I'm interseted in making a gummy bear and/or chocolate ship mold and was wondering if I could use the food to create the mold?

Asked by Penolopy Bulnick 11 months ago


hot glue molding?

Is there any suggestions to the best way to mold hot glue like you do with clay and also adding food coloring to make it colorful?

Asked by Caroline Kershaw 8 years ago


plastic bottle mold

 iv been growing stuff in plastic bottle and i notice that i get mold growing inside  has anyone else had this problem?

Posted by joeymmeezz 8 years ago


What is the difference between latex and pliatex mold rubber? Answered

 What are the differences between latex and pliatex mold rubber, or are there none?

Asked by ~Z~ 8 years ago


Best options to make a mold of a small box for casting?

I'm looking to make a mold of a small box with one open panel, not a closed box. I need to have a way of shaping the material to very straight edges and right angles, making walls that are a maximum of 1/8in thick. What materials can I use to make this mold? I want to make this mold for green sand casting.

Asked by brand0nized 3 years ago


Molding with no Special Equipment

Hi, say I want to make a lot copies of a clay craft, and I don't have a special oven to mold brass stuff etc. How can I do it? So I prefer to mold in room temperature. I don't care a lot about the material, just if it isn't something weak, like gypsum. thanks.

Posted by merijnvw 8 years ago


Is there a silicone gel for molds that is food safe?

Most of the silicone molding Instructables that I have seen look very easy to do especially,  https://www.instructables.com/id/Two-Part-Silicone-Casting/   and  https://www.instructables.com/id/Make-a-silicone-mold-from-common-household-materia/   But i want to know if the materials used in these type projects are food safe for things like jello or chocolate casts. If anyone knows of a viable and cheap substitue if not would be of much help Thanks!

Asked by Lee_Smith 6 years ago


How can I make a stamp (or casting mold) from a design I made in Illustrator?

I am trying to make an intricate casting mold of an image I designed in Illustrator.  I do not want to carve it and I do have the ability to print a transparency of it.

Asked by mjhaffeman 6 years ago


Making a mold.

I am trying to make a fascia panel for a car. In order to do that I need to make a cast of one of the voids in a panel, from a vehicle console, since it can't be measured easily. I want to make the cast so that I can then make an accurate template from which I can make the panel I need. I am looking for a material that is non-destructive to the plastic panel that contains the void. That will create a rigid solid replica of the void. I know nothing about making molds and casts. Thanks in advance.

Posted by ucs308 3 years ago