Molding

Anyone know about molding? How do I create the mold, i hear about this oozmoo or something but I cannot find such a thing in the UK. What kind of alternative can i use? how about vaseline around it, would that work? I would experiment but I don't have very much molding stuff.

Topic by Antexter 11 years ago  |  last reply 11 years ago


Molding Silicon? Answered

So I need to make some waterproof gaskets and I wondered if I could use silicon calk in a mold and then bolt it down to produce an airtight seal.

Question by jj.inc 8 years ago  |  last reply 8 years ago


Mold Making?

So, after making this awesome isntructable (it's curing now!), I got ideas for other concrete projects. My favorite so far is making a concrete lamp. I want to make a mold of a lamp (light bulb in it) and then cast it in concrete. I'd then put a real lampshade on it and call it art. My problem is...I have no mold making experience. Do you guys have any tips, know where to get silicone, etc?Thanks!

Topic by Weissensteinburg 10 years ago  |  last reply 10 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.

Topic by ucs308 3 years ago


toilet seat mold

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

Topic by transguy 10 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?

Topic by joeymmeezz 9 years ago  |  last reply 5 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

Topic by Coda24 9 years ago  |  last reply 9 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.

Topic by merijnvw 9 years ago  |  last reply 9 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!! =)

Topic by Kitus87 2 years ago  |  last reply 1 year ago


Ceramic Mold and Copper? Answered

I'm in ceramics at my school and i was planning to make a lantern and wanted to make a handle for it. I was thinking of making a mold out of white talc and getting it fired. Then putting copper in the mold and firing it again. Is this idealistic, or better yet would it work?

Question by Klaudiuszm 8 years ago  |  last reply 8 years ago


White mold on algae?

Recently (as in for a few weeks), my bowl of algae has developed white goop floating in it. It looks like flour, and sticks together like flour. I (intelligently, I believe) have not tasted it, but it or something else in the algae smells terrible (well, worse than how terrible algae already smells, lol). I'm worried because Im donating samples of this algae to my middle school to use for experimentation, but a few, um, white things got in the samples. I really want to know what this stuff is. If anyone wants pictures, I'll upload some,. but basically it looks like flour and floats on top of the algae.

Question by Rotten194 9 years ago  |  last reply 9 years 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?

Question by Caroline Kershaw 9 years ago  |  last reply 8 years ago


Molding is Not My Forte

I am currently working on a future Instructable that involves a lot of molding. Hence, I've discovered that my molding abilities are not up to par. It has been almost twenty-four hours since I poured the clear casting resin and it is still tacky on the top. Is this normal, or did something go horribly, horribly wrong?

Topic by Spl1nt3rC3ll 10 years ago  |  last reply 10 years ago


Leaking plaster mold? Answered

Hi All, I have a six-part plaster mold that leaks. It is so time consuming to make another one and I would like to fix it. During construction I  slightly over shaved some lines that during casting it leaks. I can use it but it creates more work. Now I want to make a master mold from that but want to fix it first. Does anyone know how to fix such problems on molds? I really appreciate the help. Thanks and hope to hear Belgin

Question by Mihrace 7 years ago  |  last reply 7 years ago


Vacuum Forming Molds

hey guys ive been reading a lot lately about vacuum forming and homemade vacuum forming machines (kudos to everyone who has made one by the way, theyre awesome), because i want to start early on my halloween costume this year and after some research i found vacuum forming would be the best way to make my costume. so my question for you guys: what do i make the molds out of? unfortunately, everywhere ive looked, there hasnt been a real detailed description of how to make the molds for the parts, its usually more along the lines of "now put your molds on the platen and place the heated plastic. . ." without describing how aforementioned molds came into existence. thanks a ton in advance!

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


Wood molding casting

Need some ideas:I have an antique wooden chest of drawers. Most of the wooden molding around the top and bottom is long gone, BUT I do have two original sample pieces. They are a pretty intricate design and there is no way I'll find anything like them today. So I thought I'd make a mold and cast some to replace the missing wooden strips. I smeared up the thin wood strips with Vaseline and pressed them into plaster of parís. Well the mold turned out fine, but now I am struggling with what to use for a casting material. I tried plaster of parís, it was to fragile. I tried painters caulk, but it was too flexible and looked like heck. Thought about mixing sawdust and glue, but am pretty sure the texture will be wrong and grainy. It needs to be stain-able so I can make it look like it's wood and semi rigid so I can get it out of the mold. Any suggestions??

Question by john043 1 year ago  |  last reply 1 year ago


Make two part molds with silicone mold putty

Make a small batch of silicone putty. push original into the putty, up to the mold line. let cure. put in vents for air to escape and a pour hole cover with more putty, but will the new putty adhere to the old? How do I keep the mold pieces seperate? also If I want to use pewter originals, how do I prevent tin contamination of the mold?

Question by hardlec 6 years ago  |  last reply 6 years ago


How-to: Silicon Molding for the Hydra?

I am a complete n00b. Much help is obliged. I had recently bought a Hydra and was considering building a wooden chassis, but had thought of making a silicon molding instead. Does anyone know how to make a molding for a motherboard chassis? Thanks!

Topic by 76john 11 years ago


best material for molding polystyrene

I'm melting Styrofoam w/ acetone and wanting to put the goop in a gear mold; however I'm not sure what material I should be using for the mold.  I was originally going to do it in ABS plastic, but wasn't sure if the polystyrene would glue itself to the mold as the acetone evaporates.  So I was thinking of aluminum or possibly stainless steel.  Your thoughts?

Topic by Spaceman Spiff 6 years ago  |  last reply 6 years ago


Using Resin& makeing Mold???

I want to try and use Resin (for the first time ever). What kind of resin should I buy if I'm going to be makeing small pieces that will imitate candy. And how the hell to a make a cheap mold?? :S

Topic by ZiggyRodrigues 12 years ago  |  last reply 11 years ago


Injection Molding Machine for Sale

This posting is for a small plastic injection molding machine for sale. It is lightweight and compact, but has large 2oz maximum shot size and 12tons clamping force. It can also be operated from 120V power supply. The molds for this machine are easy to make, since they can be made out of aluminum or reinforced epoxy. The price is $2875. Since it is compact, the machine is shipped by UPS to avoid expensive freight charges.

Topic by lfiore 6 years ago


Cavity mold for aircraft wing

I am using Alibre Pro. I want to make a cavity mold for a airplane wing. The leading edge is straight to a point then curves to the tip. The trailing edge is curved but is not the same as the leading edge. Does anyone have an idea how to do this.

Topic by jimp 12 years ago  |  last reply 11 years ago


Print a cast for pewter molding

I have a 3D model that I would like to have printed so I can use it as a cast for a pewter mold. It is a simple pin that I designed in 3DSMax.. Would the cast have to be metal, or is there some plastic/poly that would take the heat of molten pewter?  I don't want to have to pay a jeweler to do this, I already have the model in 3D, it seems like it should be easy to print a cast so I can make them myself..

Topic by 3DPiper 5 years ago  |  last reply 5 years ago


anyway to mold acrylic at home? Answered

From online research i see that you need pressure to keep air bubbles out. it would seem pretty easy to build a pressure vessel and heat it up. i was just looking at the acrylic toilet seats on ebay and some sell for over $200. anyone ever attempted this? anyone know where to get the materials?

Question by dannemillerd 8 years ago  |  last reply 8 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]

Topic by 85 GT Kid 6 years ago  |  last reply 6 years ago


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?

Question by DoctorWoo 6 years ago  |  last reply 6 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?

Question by settra 5 years ago  |  last reply 5 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!

Question by skip67 9 years ago  |  last reply 9 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

Question by hummis 9 years ago  |  last reply 9 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?

Question by zack247 7 years ago  |  last reply 5 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?

Topic by azalldesign 11 years ago  |  last reply 11 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?

Question by adamgillies 9 years ago  |  last reply 9 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?

Question by prd409 7 years ago  |  last reply 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?

Question by thedoctor42 5 years ago  |  last reply 5 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

Question by sharlston 10 years ago  |  last reply 8 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.

Question by UselessTrivia 9 years ago  |  last reply 1 year 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.

Question by Dimitrios 9 years ago  |  last reply 9 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)

Question by lordl9999 6 years ago  |  last reply 6 years 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

Question by JamesDRobbins 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

Question by 10 years ago  |  last reply 10 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?

Question by Eriswerks 9 years ago  |  last reply 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.

Question by DoctorWoo 6 years ago  |  last reply 6 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 

Topic by ouchthathurt 5 years ago  |  last reply 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?

Question by JerryG74 1 year ago  |  last reply 1 year 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

Topic by MaryT8M 6 years ago  |  last reply 6 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?

Question by Sserdna 4 years ago  |  last reply 4 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.

Topic by n1cod3mus 7 years ago  |  last reply 3 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.

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