As far as I'm concerned, this is one of the best videos I've ever seen for making molds. I've never seen this particular method for making a thin pour mold and I appreciate that you have it here. This seems really useful for highly detailed items, but most of all, what a money saver compared to buying the mold making products! Thanks!

My favorite part was when he was trying to open the Naphtha and he said 'I'm going to get the jackhammer now'. Really gave me a chuckle...... Loved it!!

I can't believe I found your video, this is exactly what I was looking for. Great and detailed step by step how to make a mold. 👍

Thanks for not using LOUD music. As an Curing Agent. Add about 1/4 teaspoon of Distilled Water to pure silicon, to your Pourable Mixture.. About 1 Teaspoon per Pound. Mix the Silicon and Naptha first to the Pour stage, then add the water and Mix it in, Pour Quickly, as it will start to set up in a matter of Minutes. it should cut the cure time by 3 quarters.. from 24 hours to less than 6. Silicon needs moisture to cure. It normally absorbs it from the Air. if you've seen the Dish Soap and Silicon mixture. The kneading is done in Distilled Water with dish soap. The Dish soap just keeps it from sticking, It's the absorbed Water that speeds up the Cure time, not the Soap.

Interesting and informative. Looks like I'm going to be adding silicone and naptha to my craft supply list. Thank for sharing!

I have watched tons of videos on here over many years and rarely ever make a comment..today I had to..I completely enjoyed this video tutorial..your voice is so calm quiet unlike many female voices and I found it actually soothing while watching..the instructions were so detailed, clearly stated..easy to follow, and well laid out..the comments on the chemicals what to do and not to do at the last tutorial were very well explained and why..many do not know these things and need to know before using if not an artist of many forms..everything in this video was well laid out,, step by step well prepared before and I look forward to seeing more of your videos..subscribed shared and thumbs up! Great way to save money on supplies that are very expensive when you can make your own that is very simple to do and does not take long at all. One of the best tutorials I have seen!

I've looked through so many videos for these silicone mixtures, and this is the only one with the solution that saves you from messing up the room, many thanks for that.

Thank you for making this and explaining the some science behind it

Never saw the pourable silicone made before! Thanks! FYI, a tip cutter as well as a wire to break the tube seal are found on most caulking guns.😊

thank you that was very helpful i was trying to make a mold to cast epoxy this might come in handy

Thank-you! A very easy video to watch. I lol'd at "but, I do have a wire nut."

Thank you , very informative and well presented

I’m so appreciative that you showed how to open the tube of silicone!

Wonderful, methods and presentation are highly appreciated. Thank you very much Dr Khatib

OMG, the plastic bag! i made SUCH a mess trying this is a bowl with loose latex gloves. yuk. then i tried the silicone in soapy water. nope did not work. the cornstarch method worked but it was SO messy i didn't want to try again, but here is this lovely fellow with a plastic bag! YAY!

Thanks, it always burnt my butt at how high priced molds are and the kits is rediculously high too. I'd never seen such a cheap easy way to make the molds Thanks 🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹

Seriously, the pouring method is a game changer. I had never seen that technique, thank you!

Thank you so much!! I have been looking for a cheaper diy for pourable silicons moulds! You have just made my day sir

Thanks for making this helpful video! I just started trying to make small rock molds. I wish I had the foresight to put the silicone and corn starch into a baggie like you demonstrated. I made a pretty big mess.... lol!

Thankyou this was just the video I wanted to watch. I'll deffinatly be making the 2nd method of silicon mouldings.

Good video and decent presentation for the basics. Something that might help. A few drops of water or food color added to your mixture will stabilize setting process of your silicon materials. Your silicone isn't actually setting up with oxygen exposure. It responds to CO2. a catalyst reaction that takes place between the silicone compound and the cornstarch that will generate its own source of CO2 and expedite the process of setting your mold. If you want to make a two-part mold you'll make two equal sheets of this material , then dust it with a little bit of talcum powder on the surface on each piece, place your object that you want to mold between the two pieces , making sure to place the poured sides of silicone against your object you wish to mold. Punching a couple of dowels through the material will actually help you reassemble your mold accurately by acting as guide pins. You want to firmly press the material together starting from the middle and working your way out after your piece of shit between the two heads of your mold material. Give it about a half hour or so to just to be sure it is and you should be able to pry your pieces apart with a perfect mold in the center. You can then carve out a screw or a filling for in the location of you choosing.

So very helpful , thanks for taking the time to do this!!!

Thanks for posting this video. Question, if you have a detailed part that you wish to make this mold of and then cast more of the same part, what can you use to coat the part so there is NO chance or the mold sticking to the Master part?

Thanks for a screaming good video. I have never bothered with gloves or plastic bags. Just knead some 100% Silicone caulk with some corn starch until it starts to firm up, then make your mold. I might suggest that people make sure your mold is thick enough to also endure you pulling and prying and maybe turning it inside out to get your molded part out. I usually make my molds in a container, sometimes a "Tupper-style" food container or one I fabricate myself out of a plastic milk carton, styrofoam fast food box or other handy scraps. That gives the mold a more uniform shape on the outside for uniform strength. Like when you use your mold, rub that outer container with a thin layer of vegetable oil, baby oil or other "mold release" first.

Thank you so much 💕. I'm working on molds now.

Hi again! Just to let you know my mould has worked a treat! I’m so pleased it’s saved me over ten pounds for something 1 inch in depth and 1.5 inch in diameter, plus now I know how to make any others I might need. I used the 100% silicone caulk and cornflour method with a tiny drop of cooking oil and a drop of acrylic paint to colour it. The mould was the little opaque glass tea light holder I mentioned and I oiled it lightly before pushing the mix into it. Smoothed the top out with a flat bottle top. May have missed a couple of spots! It was hard to extract so I used a strip cut from a plastic document wallet to run round the sides and free the 2 small spots that were stuck, then slid a kitchen knife between the strip of plastic and the glass and out it popped, perfect! Thanks for you help and advice 👍

thanks for the ziplock bag tip! and your pourable silicone is the 1st one i have seen so far! i have a 20cm X 20cm wood filigree which i need to make a mold from. if i were to use the 1st method and make several batches of silicone mold to cover this big filigree part by part, would the seams be noticeable after they dry? or do i need to make the mold in 1 big batch? thanks!

Thank you sppppp much. This is brilliant. I have searched for a way to pour silicone. You are the best.

Perfect. Thank you, sir.

Thanks for the info mate... wondering if its possible to add another ingredient to make the resulting mould harder.

Hi. Great video. I'm new to the whole mold making process. I originally was going to go with smooth on since it's pourable. With your pourable method, am I able to use it to make larger, one piece molds? I want to make a candle mold and this seems to be what I'm looking for. Thanks.

super awesome, do you have any examples of cast items using the Pourable? What is the shrinkage like?

I just bought some silicone & spent half a day siliconing the bloody holes in the roof & have some left... Hope it works BUT I also have been looking for a good way to make molds for resin & clay so thanks heaps for the video!

Thank you so much for sharing theses cool tips!

Thank you so much for this! I have successfully created molds for a reasonable price!! Thank you!

Thanks very much! Very helpful and informative! Really great video!

How do you smooth out the inside of the mold where it doesn’t look like aged stone from the whole or air pockets.

OK, so I used the corn starch in the bag method. After applying it to a flat plaque that I wanted to copy, I couldn't peel it back off. Now I have to disolve the silicone off my original. Would I need more corn starch or just spray on mold release?

hope your doing well sir. your lessons will be transferred to the younger generation. Its people like you who make the world go round. Kudos and god bless America!!!

Great video very informative. Do you have anything on a silicone mould to cast lead/pewter. Thanks in advance

Thanks for sharing your knowledge! Very easy to understand and watch tutorial.

Very nicely done!!! I learned something new!!!

Thank you for sharing your knowledge..I make polymer dolls ..would this work for that ? to make the heads

HI, this is great information, well filmed and easy to understand. I am looking for silicone recipe to make molds to pour lead into - any ideas?

Awesome video. Thank you so much for all the information!

Thanks for this ! Can I mold a piece of wood with silicone corn starch? Or would it stick to the wood and won’t take the details of the little piece of wood?

Loved this video. I especially appreciated no music so I could understand your instructions. I was wondering how I could use either method to make faux lemon/lime wedges so I can get the details from both sides and in a 2D version? Love to see a video on this. If you did a video how do I find it to view? I am already subscribed.

Amazing information you gave here!! Thank you!

Thank you for your video.very helpful.

I want to make molds for small cement shapes. Would the thinned out silicone hold up? Also, would the thinned silicone be brushable? I'm not in a hurry for them to cure.

Thank you for the video. Do you make personalized molds for customers? I need one for a soap mold.

Hi, thanks for the precisely instructions. Can we use this in food, cake or jelly?

Thank you so much for the helpful instruction. When making the pourable silicone does the naphtha evolve fully from the silicone once its cured? Is the final product 100% silicone?

Never heard of the DIY pourable silicone before. Did you come up with this idea? I used the Dow pourable silicon years ago so this seems like a good idea to me and have several questions if you don't mind. Is there a black color or just white and clear and which do you prefer - what would be a good release agent for 2-part molds - any idea what the shrinkage percent is, I suppose may vary with thinner amount - any idea what would be a good filler/bulker? The Dow Corning stuff was so expensive that I use to cut up reject molds in small pieces and just add it after mixing - worked great and extended the product. Thanks for sharing!

Thank you for your effort to make this very informative video 😊😊 I have one question, can we use any paint thinner instead of naphtha? I live in Europe and English is not an official language here and we do not have the same brand which you showed in the video. So I was wondering if a nitro paint thinner would do the job

Naptha is called Shellite in Australia. Available at Bunnings

I have a large mold and think I have enough tubes. However, If not, can fresh dough bond ok with cured silicone when I get more? Would bonding be possible with or without oil in the dough? Specifically, I am thinking of adding a little oil for additional flexibility. However, I get the impression that oil is used for release to prevent things from sticking to cured silicone but am unsure. Would including oil jeopardize the chance of fresh dough bonding with the cured silicone?

I'm in the UK do you know what I could use in place of Naphtha? We have something called white spirits that jeeps coming up in my search but it says that's used for cleaning paintbrushes I have no idea what to buy. X

Very helpful! Thank you!

Wow! Amazing video. Thank You!

Will this work with "klean strip green- odorless mineral substitute"?

Thank you so much!! I knew about the corn starch trick but not the naptha one!

That's amazing work! Looks good !

Can this mould sustain high temperatures like that of molten lead? I want to make one for diving weights. Will this work for it ?

Thank you for the scientific explanations !!!!

Wonderfully informative and well made video thanks so much buddy! Hope you have a great 4th of July sir .

Great video! Can the pour able one go into the oven?

Great Information! Thank You!

Thank you sir! I'll try that💫

well here we are, ready to try the liquid pour method. i have my objects taped on the bottom so the detail side is facing up. they are sitting in a thin cardboard box waiting for the stuff to be poured on them. my question is, will the silicon release from the box or is that just going to be part of the finished mold after i the bottom off. AND that begs the question, am i going to be able to get some of the cardboard which will be in contact with the silicon off. or do i need to find myself a plastic container? thank you so much for your help!

Sir how can I make more Hardened as well as elastic mould with different methods cuz the mould tear apart due to it's complexity, I'm making mini sculptures this summer holidays as my school project 😋.

Appreciate the cautions you mention. Cloth being more flammable than the product alone. Did not know it should be watered down. I thought it would just evaporate. Thank you

Can i use resin with any of these molds ?

any reason you dont use your bag method to make the pourable mixture?

Hi, I've read that the mold shrink after the Naphtha dry out, really the size of the mold changes after a few weeks?

Thank you sir !!! Finally a video I’ve been looking for.

Great Video ! Thats what I have been looking for : How to get silicon to cure through the depth of the mold

I want to make dice molds and this video is helpful but I want know if I could use them to make Chocolat? (of course from another mold then I would pour my resin in it)

Thank you. Will the mold be shiny on the inside so the resin comes out shiny? You’re awesome!

Greetings ✋✋✋! Wow, very informative tutorial, Big like, keep safe & Keep connected!

Two questions, please. 1- Can I use mineral spirits to thin out the silicone? 2- I want to duplicate my wife's ivory bangle. I'm worried that it can react somehow with the curing acetic acid or any other chemical. Should I coat it in corn starch before putting it in the mold?

very informative video, this! will non-acetic cure silicone cure slower than acetic cure silicone when mixed with corn flour? i've been using silicone for years. it's a wonder substance. only very recently i found a recipe to use it as a paint. for those who are interested, i found it described on youtube as making a seam sealer for tent seams. he suggested 1 to 1 ratio of silicone to mineral turps(a list of many other substances at the end of his video). i found 1 to 3 or 4 parts turps worked best for my uses as a paint on canvas or denim applied over holes in rusted leaky roofing gutters. hope this helps someone.

Would either mold be oven safe up to 200 degrees for wax casting? I would prefer to use the pourable formula but concerned about the flammability of solvent.

Hi, I have a question, "I bought paint thinner put it into a small plastic beaker and the beaker started to melt, I did notice you used a glass bowl but poured the mix onto a plastic plate, does this mean the thinner looses its potency when mixed with the silicone? or have I bought the wrong type of thinner"?. I have lots of low odour spirit for plan B but would appreciate any advice about thinners its a new area for me and I feeling quite lost. I loved the no mess mixing in the plastic bag, super tip, Great video, enjoyed very much, thank you

Thanks for this very informative video! As everyone else in the comment section has mentioned, you have saved us from spending top price on casting kits. Also, I am a sucker for DIY renditions of existing products! I was planning to sculpt a phone case out of the silicone-cornstarch mixture. I was wondering if the final product has a bit of a stretching property to it? Would I have a difficult time fitting my phone into the case/pulling it out? Also, with the pour-able version, I was wondering if this would work well in large quantity, for an example, throwing an action figure into a deep tub of the naptha-silicone mixture? Would highly appreciate your response. Cheers from the Philippines :D

Hi I need some help working out the measurements for making 650ml quantity to make a block printing mold.the mixture will be poured into a smooth metal cooking tray to create the block, any help would be great.

For the pourable mold- can coloring be added? If so, which kind? Food color, alcohol ink, powdered pigments,etc? Wasn’t sure if anything would react with the naphtha (that stuff scares me but oh the money saved!). Thanks for the video!

This is a good video. The thin pour was phenomenal I can use this information. New Subscriber!

Sorry for yet another question but I hope you can help me out, again! Had a couple more goes with the silicone shape I made and despite the first one popping out of the plaster shape that I cast around it, I’m finding subsequent ones are proving more difficult. I think part of the reason is the silicone shape is rather rigid so I was wondering do you have a magic tip to make it a little more flexible? I’m aware that too much ‘digging’ around it firstly with the plastic strip to loosen it off the plaster and then a knife to actually get it to free itself is going to damage it quickly. I wondered whether it was the amount of cornflour I added, but without a certain amount it’s too sticky to work with. Thanks again for any help you can offer me, it’s greatly appreciated!

My first time here, and I am so glad I found you. This is exactly what I was looking for, thank you. Excellent detail, easy understand. Warm regards, my brother.

Have you tried using it on clay? I want to make a small clay sculpture and make a mold of it. Further more can I use it to make a mold and then use it to cast something if I sprayed mold release or mineral oil in the mold or do you know of an alternative? Thanks

Are there any alternative for naptha? like can you use a paint thinner or acetone? I dont think we have naptha in my local Depot.

Such a useful feat ailed tutorial. Thank you.

Thank you for the great idea u share....❤️💙🇱🇧

Pure awesomeness. Thanks!

I want to make a mold with silicone and pour liquid latex in the mold. Will these two stick together though?? And won’t be able to peal it off?

Thanks for the great vid. Stay Happy and Healthy

I am also thinking if you got dollar store plastic containers (have many sizes and use baby oil, or spray with non stick cooking spray, can buy at dollar store to spray inside so won't stick. You should also use corn starch to coat the item with. or something.

i tied to do a silicone in a tube and cornstarch. but something went wrong. i've seen people also use soap. was it beauce soap, cornstarch and bathroom silicone were used?

if the silicone uses methylethylketoxime to cure is the cornstarch still going to mix effectively?