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


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


toilet seat mold

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

Topic by transguy 10 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


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


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


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


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


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


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


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


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


What are the six steps of mold making?

Question by DUBSTEPLIFER 2 years ago  |  last reply 2 years ago


How do I make a mold for a severed arm on the cheap? Answered

I am trying to make a mold of my arm for Halloween, I am going to use ballistics gel for the actually mold itself

Question by Claypoolgal 8 years ago  |  last reply 5 years ago


wich material or substance shoud i use to mold and make Panpipe

Greeting sorry for my poor english... i want to mold and make panflute like this one: click i'v already made it from wood and molded it with silicon. now, the problem is, since this panflute has contact with lip and mouth, so it shoud be made of a hygienic material wich is harmless for health. this material shoud also have an acoustic mod, like wood or bamboo to some degree. so please tell me wich resin, epoxy or materials shoud  use? cheers

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


I am looking for a casting material for a mold made from a textured sheet Answered

I made a latex mold off a piece of textured sheet.  The mold is 24x24x1/8 inch.  I want to make castings that are flexible and paintable, so I can make "sheets" I can shape into roads for miniature terrain. I have heard there are paints or surface finishes that will work for this, and if this is true, I'd like brand names from US sources.

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


Help on clay modeling/molding intricate parts

I had posted this on another forum asking for advice as well, but I haven't received a reply in days and I figured that the community there was more into the artistic craft sort of stuff. I like the engineering mindset of this community far better as I tour around here a lot looking at neat instructables, so maybe you guys can offer me some solid advice. I have a series of small metal parts with minute details on them, and I want to take them and create clay replicas of them. I want these clay replicas to essentially be spot-on accurate to the original and be durable; not brittle, heavy, and perhaps slightly flexible. Essentially, though it may sound strange, I'm working on a World War II movie project. I don't have the fire-arms necessary for it, and I don't have a reason to use real fire-arms, so I want to create dummy replicas that have believably working systems that of course are just made of clay and aren't capable of firing. I'm also of course going to create miscellaneous objects, such as papier mache helmets and whatnot. At the bottom are a few examples of what I need constructed. I don't know what type of clay would be the best for this; I can afford to have it be slightly flexible, but not rubbery. It would be handled and roughed around a lot and couldn't be brittle, lest it shatter. I also think that I would probably have to make a mold of the metal parts, but what material should I use? Some sort of molding latex, or clay? Would the clay stick to the metal, and if so, can I oil the metal to make it easy to remove, or would that interfere with the chemistry of the clay somehow? I've also considered maybe using papier mache to mold the parts, as I'm sure that it would be tough. Perhaps I could achieve this by carefully cutting the strips? I've considered that clay may not even be the best material for this, although it may certainly help with molds; tutorials on how to create molds for complex objects are also appreciated, since these have internal chambers and whatnot. Maybe I can eyeball it and cut the parts out of foam, and then coat it with some sort of hardening resin? I don't know, I'm certainly up for suggestions here. Thanks in advance! P.S. Oh, by the way, if any moderators feel that it would be better suited in the "Burning Questions" subforum feel free to move it there; I wasn't sure whether or not to post there since I simply want advice, not someone to make an instructable for me.

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


how to choose a good casting compound? An unbreakable, washable and flexible material that is non-toxic would be best.

Plaster-of-paris would be ok as a cast material, but a softer material (like the washable material that expensive prosthetics are made of) would be better.

Question by Kenneth G 10 years ago  |  last reply 9 years ago


Lexan. Just to be sure...

So, I was thinking about an Halloween mask, a steampunk diving dress. The most complex thing is, of course, the head piece. More specifically, I'm in a bit of a quandary with the visor: I need to make a convex, ellyptical dome of clear plastic. Since I need to fit that into a frame I need to make it from flat panels; this way I'll get the shape I want. I think I'll use Lexan: it seems to be quite sturdy and easy to work on. In theory, all I have to do is heat the thing up to 200°C (400°F) and it will bend like a charm, but I'm a bit worried about exalations and whatnots; can someone help me here please?

Topic by Madness helps 10 years ago  |  last reply 10 years 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


what is a good lightweight molding material?

I'm building an iron man animatronic  helmet and i need to know what will be the best molding material to make the helmet mold and how i would make that i'm a tech guy so i don't know about this costume stuff thanks and rember to follow me for awsome tech and science stuff.

Question by jOker58 3 years ago  |  last reply 3 years ago


is there any way to make a 3D mold for aluminum casting? Answered

In some of the aluminum foundry instructables I've read, the molds only have 1 side. I was wondering if anyone knows how to make a 3D mold?

Question by Redfox888888 9 years ago  |  last reply 5 years ago


Removing baseboard molding w/old phone outlet?

I'd like to remove some baseboard molding, but here's an old-school phone jack in the molding that has been painted over pretty good (though it still works with the converter). Any ideas how I might go about pulling out the molding without destroying the phone jack? I'm familiar with how to take down regular baseboard molding, but I can't seem to find anything online that might explain how to do it when an old outlet's in it. I'm not familiar with electric stuff, but am willing to learn, if need be. Thanks!

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


injection molding machine; help me with the wiring?

Hey I'm trying to build a plastic injection molding machine, but I can't get the electronics/ wiring to work, please take a look at it and tell me why it isn't working :p I've connected a light bulp to represent the band heater and it glows, but never turns off. Not even when the controller (REX c100) reaches the set temperature (I fool the thermocouple with an external heater source) really really really hope someone can help, thanks!

Question by lordl9999 6 years ago  |  last reply 6 weeks ago


how to make a hand-made styrofoam article (such as storage box) with molding method?

I need to put some products into the storage box made from EPS. If I have desired molding shape and a preexpanded EPS balls, what is the next step? what else I need to have and do?

Question by gefufna 9 years ago  |  last reply 9 years ago


I need suggestions for good materials to use for molding and casting..(details inside :) )

I need some casting(?) material ideas. I'm looking for fairly inexpensive material to make selector knobs (so it needs to cure to a hard, strong material)...would that material work also for casting things like remote control casing? If not, what would be a good material?... then i also need to make some thermocoupler holders, which need to be able to handle 300 degrees for a very long time. a hard material would be preferable, but, something with a firm rubbery texture would be ok also.... THEN, what material would be good for making the molds to pour the casting materials into to form those items? First, I'd want something solid i could cut into to form the shapes I want to cast, then I need something to put over my first cast(s) after I 'fine tune' them so I can make more.....So.. any ideas/suggestions?

Question by bac512 8 years ago  |  last reply 8 years ago


How to make Aluminium Table Ware

Is there a better way to mold aluminium into tableware than using green sand molds?

Question by Aliware 9 years ago  |  last reply 9 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


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!

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


How would I make a mold for Casting Plastic parts?

I want to make a scratch built custom transformer but I want to make a mold of some existing parts to make it so how would I go about doing that?

Question by xgestaltx 9 years ago  |  last reply 7 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


3d wax printer

Is there a wax 3d wax printer on the market that uses reusable wax (like candle wax) or is it possible/cheaper to just make one? I want to use this for lost wax moldings and I want to be able to reuse most if not all the wax used to make the mold. Any information would be great.

Question by pmk222 6 years ago  |  last reply 6 years ago


Blowing Quartz?

I know you can make pipes and other stuff out of glass by a technique called glassing blowing could you do the same with quartz?

Question by thegreenchristian87 7 years ago  |  last reply 9 months ago


Elmers Glue + Super glue =?????

I was making some stamp glue where i mixed some Elmer glue and vinegar. but wanted to see Wat happens when i mix Elmer's glue, vinegar, and super glue. like in 10 seconds the solution turned into a rubbery solid which took the form of the container. can any body tell me why this happened. it held its shape and slightly reminded me of molding silicone. it wasn't sticky and came out of the plastic cup easily.

Topic by chrischavez 10 years ago  |  last reply 2 years ago


Cloth to use to make a fiberglass hood scoop?

Hello, I have a question about the cloth to use to make a fiberglass hood scoop from a plug. A friend of mine gave me a roll of stuff called Permaglas mesh. Can this be used to construct my hood scoop? It seems to be made from polyester and it is very strong.  Another question can you used hardboard (same material that peg board is made from)  to make the plug? Thank You to all that can help me, Tony

Question by slowride59 6 years ago  |  last reply 6 years ago


Looking for the proper different colored translucent plastic material to pour into molds? Answered

So I have a mold. I'm looking to make about 7 different colored casts and they have to be somewhat translucent. Is there a kind of plastic material that will melt at a low heat and cool translucent?

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


How do I measure for getting chair rail molding level and straight on the wall ?

I am going to put up chair rail molding in my living room and I can't figure out how to make sure the molding around the room will look straight and level all the way around the room. Do I measure down from the ceiling every few feet around the room or do I measure up from the floor every few feet to get it even around the room. Its an old house so I'm sure the floors are not level or square. Help! Thanks, Donna :-)

Question by donnadidit 10 years ago  |  last reply 10 years ago


Expertise needed on melting and remolding plastic (PP, HDPE etc.) at home with hand made molds... there must be a way!

Hi, I want to make a rough casing for a project out of plastic of some kind. I tried the potato plastic instructables, but I'm not really happy with the result. So I attempted to melt down some plastic chips broken from old plastic casings (I think the plastic was polypropylene) in an old can on a barbeque (good as it was outside). This didn't work as I kept heating the plastic chips even when they became a bit soggy as I expected them to become much more liquid. This is because I hoped to 'pour' the molten plastic into a mold. Before this happened however the plastic caught fire. So, I was wondering if I heated them in a more sealed environment would the lack of oxygen make it possible to achieve a more molten consistency without the plastic igniting? Some plastics on consumer electricals have flame retardants... surely these would stop the plastic from igniting? If the plastic won't ever become liquid/molten, then I assume to mold it you have to have very high pressures (like commercial injection molding machines)... any ideas as to how to acieve these kind of pressures easily at home? I think with so much 'waste' plastic out there it'd be great to work out some easyish way of remolding it at home! Any help appreciated! Thomas

Question by themassoftoe 10 years ago  |  last reply 2 years ago


how can i do large scale resin casting?

I am aiming to make a large resin sculpture, First of all, how can i make the mold? the original piece I want to duplicate is made from card board, it is about 4 feet by 4 feet, Could i put the cardboard piece in a tub and then spray expanding foam on it, also what would i put on the cardboard so the foam or what ever wouldn't stick? would i next pour some sort of casting resin in to the mold? Thanks very much

Question by puregoldner 8 years ago  |  last reply 6 years ago


How can replicate the functionality of this bike rack cradle?

I have a bike rack with rubber cradles that have dried out. I'm annoyed because the cradles are no longer available and every rack manufacturer seems to make cradles to fit a different bar diameter. In my case it's 1.125". Current racks on the market are either 1" or 1.25". Any ideas on how to replicate the functionality of this cradle? I need to make 8 of them. It needs to be soft enough not to scratch the paint finish on a bicycle.  https://www.etrailer.com/Merchant2/graphics/00000001/pics/R/G/RG8890083_1000.jpg

Question by goodgnus 5 years ago  |  last reply 5 years ago