Fleur Lewis Thanks for contacting us. In order to more efficiently handle your request, please contact our Tech Support department at 1-800-381-1733 or submit a ticket at www.smooth-on.com/support/index.php?a=add
After researching a number of different options in silicone mold supplies and urethane casting resins, you guys win. Internet commentaries only have good things to say about your products. Very helpful videos too.
Yes, this is essentially the same process as demonstrated in this video. If you need more detailed support with this project, feel free to contact our tech support line at 800-762-0744.
Instead of using a box, use Lego which makes it easier to get the first level, then build it further up to the desired height for Stage 1 of the silicone casting.
In general making a two-piece mold like this the seal will be fairly tight but there may be some flashing to trim. I would recommend looking at the follow-up video to this one where we actually cast into the mold. For this mold, the seam comes out quite cleanly.
Im a ceramicist and I had seen a demo for this and resin casting at a local supply shop. Glad to see you on youtube.. Seen the Reynolds (neighboring states) catalog photo of a cast boat. That definately piqued my interest along with other cool project ideas cant wait to start working with Mold Star. I'm currently sculpting a collection of figurines. Great detail that the silicone cast captures on the orb. Have a great day cheers to the future. 🙂
Mold Star 15 is a good material to use to mold complex or ridged shapes because of its durability and flexibility. In terms of casting into the mold, there are a number of options including resin, gypsum, concrete, and low-melt metal alloys (up to 450°F).
Make sure the clay is non-sulphur - and if dry, is sealed with Superseal. You can cast silicone into silicone as long as it is the same type of silicone and Ease Release 200 is used.
Mold Star 15 is compatible with a wide range of casting materials. You might want to check with the resin manufacture to see if there is any known issue with platinum silicone or do a small surface compatibility test. Depending on how lightweight you want the piece to be, you could consider our Smooth-Cast 325 (it's what we use in the follow-up video to this one).
@legoclockfreak710 If you go to the Smooth-On website, click the Distributors link near the top right of page to locate a local distributor. You can also order trial sizes directly from the website if you live in the US.
@ecwman44 This will depend on your particular application. I would recommend calling us to discuss the details of your project so that we can help make a recommendation. Our toll-free number is 800-762-0744.
Just about anything can be used to make the mold box. We used a clear acrylic for this demonstration for visibility. But the walls could be made out of non-sulfur clay, melamine board, sealed wood, etc. You could ask your local Smooth-On distributor if they have any specific material they recommend or sell for containing walls.
@mokunakoi You can use Ease Release 200 in many applications, including casting resin into a silicone mold. For more info on Ease Release 200 - search for "ease release 200" on our site.
@bondophobic It is always best to run a small test to make sure the material is compatible. Damage to a painted surface may be an issue dependent on the type of paint, age of paint, etc. Our Ease Release 200 is a suitable release for silicone moldmaking in most cases. Jason - Smooth-On, Inc.
I Like to Paint my Source model with the silicone, right before pouring.. I believe it really helps with bubbles, especially in horizontal overhangs.. Brilliant Video xx :-)
Good. Getting that clay out of all the pockets on the part must be time consuming, though 2:49 Could you have sprayed the part bottom to keep the clay from sticking ?
I wish to degas my mold and cast but have no budget nor the time to make a diy vacuum chamber or pressure pot. Can I still achieve this perfect cast without having to degas? Because I'm running out of time..
Hello! I purchased these products to make a two-part mold. I wanted to find out whether an object that needs to be seamless (like a perfect square), would come out seamless if cast from this type of mold. Thank you for any advice. Your videos are helpful.
You could do that as well, but the clay would have a hard tome clinging to the surface of the orb to create a seal. Smooth Cast 300 may be suitable for your application, but our 65D has a bit more impact resistance.
I'm trying to make micro radio control airplanes using this process. What i want to do is take a regular plastic model plane ( like a Revell model ) Make a mold using some material that will be both light and flexible. The plane fuselage will be hollow to allow the micro size electronics to go inside. I need something like a rubberized foam. I like your video on how to make a mold using clay, that helps me alot. If you have any input in what i am trying to achieve it would be appreciated.
Those are clear acrylic sheets, but almost anything could be used to construct a box around the mold. We chose something clear so that you would be able to see the whole process.
@blckjade05 Our Sorta-Clear series is our line of semi-transparent silicons. You can obtain Ease Release 200 through our distributors listed on our website. As we do not manufacture 66B, I cannot make a recommendation for a release.
StudioSambodia No, you should try to mix up only what you will need for each half. You can estimate how much material you will need by using our calculator: www.smooth-on.com/tools.php
The Mold Star silicone used in this video is rated up to 450°F. Mold Max 60 is our highest temperature rated mold material, up to 560°F, which can accommodate many low-temperature melt metal alloys.
This might seem strange but is it possible the finished mold be used for casting the same silicone rubber mold itself? As I may want to create projects made of this silicone material as well.
what type of clay is ok to use as a seperator when making a 2 part mold? is modelling polymer clay like sculpey and fimo ok to use? what if your actual part is made from baked polymer clay, is it still ok to use unbaked polymer clay as the seperator?
It will need to be a release agent that is made specifically for mold making and casting. You need to make sure to use one that will release silicone from silicone like our Ease Release 200 or 205. There are different release agents that are made for different materials so you need to make sure that you use the correct one for the products you are using.
@blckjade05 We have a few materials which may suit your needs. In the essence of getting a quick response, I recommend you submit a support ticket on our customer service page.
I need to make a mold of a ceramic object. Will this still work? Also, I'll need to glue pieces together, is their any specific glue I'll need? Finally, do you sell harder silicone to make the casted object? Thanks.
i sculpted a car from a non-hardening clay so for structural reasons i didnt clear out the bottom, but on the final model id like to give it ground clearance. so im thinking im going to have to make a mold of it as is, flip it over inside the mold and then sculp out the bottom, and then mold that, with a 2 piece mold like the one in this video. is it okay if sculpting the bottom takes a long time? what's the time window between curing the first half and molding the second half?
@nuebKitsune There are many different ways to make this type of mold, our how-to PDF outlines several different techniques. smooth-on(dot)com/howto(dot)php
Yes, absolutely. If you need more detailed assistance, contact our technical support team www.smooth-on.com/support/ticket/add/agree/ Thanks for watching!
Sorry no one replied to this comment sooner. Please feel free to contact our tech support line toll-free at 800-762-0744 to troubleshoot this. Platinum-cure silicones such as Mold Star and SORTA-Clear exhibit nearly no shrinkage and have exceptionally long library lives.
@Anonpeace Any time the mold is in separate pieces or is cut, there will be a seam line. The techniques used to make the mold will determine the amount of clean up the final piece will need.
How would I make a 2 part mold for beads? I've watched your second video linked at the end, and this one, as well as many of your other videos, and I'm not sure how I would cast a mold for beads. I really want to make my own beads, but not sure how I could replicate them using Smooth-On products. I have the Mold Max 29NV and EpoxAcast 690. Also, do you have a calculator for ensuring the amounts mixed are proportionally correct? I've wasted a lot of epoxAcast 690 due to calculating mistakes.
We do have such a calculator: www.smooth-on.com/support/calculators/#ratio In regards to your other question this is a good question for our tech support team, can you send them a ticket here? www.smooth-on.com/support/ticket/add/agree/ Thanks for watching!
Hi can u tell me does this silicone sticks to glass or it doesnt and can i use vaselin insted of mold relise sprey to stop two parts of the silicone to stick to each other
If the material has been chemically inhibited by, for example, exposure to sulfur, often the material will not ever cure. A heat gun or hairdryer would be your best chance of success, but take care not to scorch the rubber by going over 450F for too long.
a couple questions What is a good transparent silicone to use? where can someone get that release agent? and can that release agent be used on clear RTV silicone 66B, it is used in automotive but i want to make a transparent thin mold of something and dont know enough about it.
Is Sorta Clear a good choice for soap molds? Is any shrinkage involved? Mold Max molds shrunk like crazy, so I switched to Mold Star. The Mold Star molds are now starting to shrink. Does the cold weather cause this? Not only that, the newest batch of Part A had a bunch of hardened white stuck to the bottom of the bucket, that basically left white spots all throughout my molds. I am looking for no shrinkage 2-Part Molds.
Mold Making Tutorial: How To Make a 2 Piece Silicone Rubber Mold - TH-cam buff.ly/1xILtMf #smoothon #moldmaking
Do not remove the model from the mold.
@@voxel9470 I agree with you.
@@ademengin76310009
Smooth-On How much silicone was used in this? What was the box volume? I want to cast a glass sphere about that size possibly using mold star 15 or16.
Thank you! 👍💓💓
Fleur Lewis Thanks for contacting us. In order to more efficiently handle your request, please contact our Tech Support department at 1-800-381-1733 or submit a ticket at www.smooth-on.com/support/index.php?a=add
After researching a number of different options in silicone mold supplies and urethane casting resins, you guys win. Internet commentaries only have good things to say about your products. Very helpful videos too.
Very well done! This video has helped me tremendously for making a two part mold. Thank you so much for doing this.
best, clear, to the point art class ever.
Yes, this is essentially the same process as demonstrated in this video. If you need more detailed support with this project, feel free to contact our tech support line at 800-762-0744.
The illustration in the beginning was great.
Instead of using a box, use Lego which makes it easier to get the first level, then build it further up to the desired height for Stage 1 of the silicone casting.
better yet: use BlueBrixx or some other Lego-Clone. MUCH cheaper, especially when building larger boxes ^^
Hate using legos
@@tommcelroy6975 why? Works Great
Now thats actually pretty smart....
In general making a two-piece mold like this the seal will be fairly tight but there may be some flashing to trim. I would recommend looking at the follow-up video to this one where we actually cast into the mold. For this mold, the seam comes out quite cleanly.
Smooth-On what silicone was used in this video? Im looking to get the same grade
I did this but got air bubbles using rebound 25. Do you have any suggestion for me ?
Im a ceramicist and I had seen a demo for this and resin casting at a local supply shop. Glad to see you on youtube.. Seen the Reynolds (neighboring states) catalog photo of a cast boat. That definately piqued my interest along with other cool project ideas cant wait to start working with Mold Star. I'm currently sculpting a collection of figurines. Great detail that the silicone cast captures on the orb. Have a great day cheers to the future. 🙂
Awesome! Thank you!
this is one of the best silicone molding vids i've seen up here...nice work
Mold Star 15 is a good material to use to mold complex or ridged shapes because of its durability and flexibility. In terms of casting into the mold, there are a number of options including resin, gypsum, concrete, and low-melt metal alloys (up to 450°F).
I am glad this worked out for you!
THANK YOU! I have put off making molds because couldnt get the split concept and how it work.....it's finally dawn for me.....😊♥️💛🧡💚💙💜💗
never made a mold before but that idea with the nuts to make the connections is ingenius this makes me want to mold something now :D
Thanks for a great dummy proof video :D My first time making molds and I found your video to be the most helpful!
Easiest 2 part mold ive watched. Great video.
Glad it helped
Make sure the clay is non-sulphur - and if dry, is sealed with Superseal. You can cast silicone into silicone as long as it is the same type of silicone and Ease Release 200 is used.
Mold Star 15 is compatible with a wide range of casting materials. You might want to check with the resin manufacture to see if there is any known issue with platinum silicone or do a small surface compatibility test. Depending on how lightweight you want the piece to be, you could consider our Smooth-Cast 325 (it's what we use in the follow-up video to this one).
This is the best step by step i found 👍
This is non sulphur clay - Chavant NSP you can purchase from Reynolds Advanced Materials, our distributor in 6 locations. reynoldsam . com
Your work is really beautiful, I'm just waiting for the video.
Thanks for watching! 😃
Thank you! You just solved another problem for me! I am trying to work smarter not harder!
Thanks for watching! 😃
@legoclockfreak710 If you go to the Smooth-On website, click the Distributors link near the top right of page to locate a local distributor. You can also order trial sizes directly from the website if you live in the US.
Great video!! Doesn’t get more simple than you made it in the vid.. thanks for sharing
Use the 'Contact Us' link on our our website to contact us directly.
@ecwman44 This will depend on your particular application. I would recommend calling us to discuss the details of your project so that we can help make a recommendation. Our toll-free number is 800-762-0744.
Mold Making Tutorial: How To Make a 2 Piece Silicone Rubber Mold - TH-cam
@Ruthles12 our distributors page has connections all over the world. Visit smooth-on . com for more info
We used a sulfur free clay called Sculptex available from Reynolds Advanced Materials. No de-airing is necessary with Mold Star 15.
I'm attempting to make Power Coins for my 1993 Morpher - this video helped a lot - I just need to downscale the project for the small coin. 😃
Thank you. Very nicely explained
Thank you for watching! Don't forget to subscribe!
@copburner This material can withstand about 400F. The material will not melt at higher temperatures, but will be damaged.
Just about anything can be used to make the mold box. We used a clear acrylic for this demonstration for visibility. But the walls could be made out of non-sulfur clay, melamine board, sealed wood, etc. You could ask your local Smooth-On distributor if they have any specific material they recommend or sell for containing walls.
You read my mind! I was just about to ask!
@Horis573 Check out our channel for a lifecasting playlist that you might find useful.
Thanks for outstanding knowledge
Nice vid. Planning a zombie army build with a buddy at work. This will make short work of all the heads and hands. Thanks.
Amazing tutorial. Thank you!!!
Thank you for watching! Don't forget to subscribe!
@mokunakoi You can use Ease Release 200 in many applications, including casting resin into a silicone mold. For more info on Ease Release 200 - search for "ease release 200" on our site.
Thankyou for the tutorial!! :).
If you done with the casting for both sides, how do you glue them together?
Exactly what I needed thanks
Use Sculptex or Chavant NSP - both good Non Sulfur modeling clays.
@bondophobic It is always best to run a small test to make sure the material is compatible. Damage to a painted surface may be an issue dependent on the type of paint, age of paint, etc. Our Ease Release 200 is a suitable release for silicone moldmaking in most cases. Jason - Smooth-On, Inc.
Wow 😮 This is very helpful! Thank you!
Thank you for watching! Don't forget to subscribe!
wow, that was incredible tutorial video. thank you
I Like to Paint my Source model with the silicone, right before pouring.. I believe it really helps with bubbles, especially in horizontal overhangs.. Brilliant Video xx :-)
Thanks for sharing!
What is the width of the Plexi Glass that you recommend for Mold making
Any non porous material can be used for a mold box. The acrylic in this video is 1/4" thick.
How much is that in mm?
6.35 mm
Is 3mm good enough?
very nice work, good job
Thanks for watching! 😃
I always wondered how to do this. Thank you!
Wish everyone stay safe. I do sculpture in Vietnam 🇻🇳 😍😍😍😍
Good. Getting that clay out of all the pockets on the part must be time consuming, though 2:49 Could you have sprayed the part bottom to keep the clay from sticking ?
A good idea if you are using oil clay. with water clay a wet brush makes quick work of removing clay residue.
Greetings ✋✋✋!
Wow, very helpful tutorial,
Big like, keep safe &
Keep connected!
I wish to degas my mold and cast but have no budget nor the time to make a diy vacuum chamber or pressure pot. Can I still achieve this perfect cast without having to degas? Because I'm running out of time..
The materials shown do not require degassing.
I did some further research, and ended up sticking it in the oven at 200°F for 5 hours, which made any of the uncured rubber finally set.
Hello! I purchased these products to make a two-part mold. I wanted to find out whether an object that needs to be seamless (like a perfect square), would come out seamless if cast from this type of mold. Thank you for any advice. Your videos are helpful.
P.S. Your videos are amazing.
You could do that as well, but the clay would have a hard tome clinging to the surface of the orb to create a seal. Smooth Cast 300 may be suitable for your application, but our 65D has a bit more impact resistance.
Very Helpful, I just bought a Starter Kit from you guys!
If the thing being modelled is disposable can one simply cast the entire thing and just cut the mold in half?
This might be possible, but you would still need to incorporate a pour spout, and without keys, mold half alignment would be very difficult.
I'm trying to make micro radio control airplanes using this process. What i want to do is take a regular plastic model plane ( like a Revell model ) Make a mold using some material that will be both light and flexible. The plane fuselage will be hollow to allow the micro size electronics to go inside. I need something like a rubberized foam. I like your video on how to make a mold using clay, that helps me alot. If you have any input in what i am trying to achieve it would be appreciated.
Those are clear acrylic sheets, but almost anything could be used to construct a box around the mold. We chose something clear so that you would be able to see the whole process.
@blckjade05 Our Sorta-Clear series is our line of semi-transparent silicons. You can obtain Ease Release 200 through our distributors listed on our website. As we do not manufacture 66B, I cannot make a recommendation for a release.
Love this and want to try it. Can you tell me where I can purchase the orb used for this tutorial. Thank you.
This was from a home decor store.
is there a way to keep the silicon mix remaining in the mix container from curing so that you may use it for the second half?
StudioSambodia No, you should try to mix up only what you will need for each half. You can estimate how much material you will need by using our calculator: www.smooth-on.com/tools.php
@7oMmY18 You can, as long as a suitable release, such as our Ease Release 200 is used to separate the new silicone from the cured.
You could use this for wax casting. The temperature resistance is around 450F.
Very nice demo! Ty 💕👍🏼
Thank you for watching!
Reynolds Advanced Materials is our full-line distributor in Orlando.
@righteoushero You can use any non-porous material. Melamine board from a home improvement/hardware store works well.
The Mold Star silicone used in this video is rated up to 450°F. Mold Max 60 is our highest temperature rated mold material, up to 560°F, which can accommodate many low-temperature melt metal alloys.
This might seem strange but is it possible the finished mold be used for casting the same silicone rubber mold itself? As I may want to create projects made of this silicone material as well.
Yes, as long as a release agent such as Ease Release 200 is used.
Perfect video- Thanks!
Now, is there a way to reproduce the mould if you wanted to sell them?
Can you send us a tech ticket? Our team can help you - www.smooth-on.com/support/ticket/add/agree/
You will need to have pins or similar supports attached to the core which keep it centered in the mold.
Is this product for wax castings as well?
Love the video. Thanks. How is the clay funnel not detaching from the model and starting to "float" once you pour the silicone?
The clay is tacky enough to stay in place.
This has been a great help, thank you.
what type of clay is ok to use as a seperator when making a 2 part mold? is modelling polymer clay like sculpey and fimo ok to use? what if your actual part is made from baked polymer clay, is it still ok to use unbaked polymer clay as the seperator?
is it ok to pour silicone onto clay that is not fully dry? will it cause bubbles if it is still wet?
Platinum silicone should be fine, but we recommend running a test first.
@BurpAtTheMoon Yes, Mold Star 15 can be used for very small models or plastic miniatures.
Curious, can you us any spray like a silicone car spray? Or does it have to be a release spray
It will need to be a release agent that is made specifically for mold making and casting. You need to make sure to use one that will release silicone from silicone like our Ease Release 200 or 205. There are different release agents that are made for different materials so you need to make sure that you use the correct one for the products you are using.
@@smoothon thank you, I'm in the UK so will have to find one!
@blckjade05 We have a few materials which may suit your needs. In the essence of getting a quick response, I recommend you submit a support ticket on our customer service page.
I need to make a mold of a ceramic object. Will this still work? Also, I'll need to glue pieces together, is their any specific glue I'll need? Finally, do you sell harder silicone to make the casted object? Thanks.
i sculpted a car from a non-hardening clay so for structural reasons i didnt clear out the bottom, but on the final model id like to give it ground clearance. so im thinking im going to have to make a mold of it as is, flip it over inside the mold and then sculp out the bottom, and then mold that, with a 2 piece mold like the one in this video. is it okay if sculpting the bottom takes a long time? what's the time window between curing the first half and molding the second half?
@SmoothOnInc Thank you, i have one more set of questions,
The level of importance on what is needed is:
Transparent
@nuebKitsune There are many different ways to make this type of mold, our how-to PDF outlines several different techniques. smooth-on(dot)com/howto(dot)php
When the cast is cured after the 4 hours, does it have a smell it it ? If it does, what does it smell like and would it last forever ?
hey, real quick question, could you provide links to the clay you used or a viable alternative,
Sculptex non-drying clay works very well for this application.
@@smoothon thanks, where would I find it
Thanks for watching Mattias Calvignac. You can find a full list of Smooth-On distributors here - www.smooth-on.com/distributors/
@@smoothon bro, is this automated or did I not formulate my question properly
Hi Mattias, you can purchase Sculptex clay from Reynolds Advanced Materials - www.reynoldsam.com
Currently looking into to making a mold using a resin bust. Is this method doable using a resin object?
Yes, absolutely. If you need more detailed assistance, contact our technical support team www.smooth-on.com/support/ticket/add/agree/ Thanks for watching!
Instead of a mold box, can a plastic container of a suitable size be used (like a food storage container I don't plan to use anymore)?
You could, but you would need a way to ensure you could remove and rebuild the box as show starting at 2:24
Ok sounds do able :) thank you
Can you tell me what kind of clay is this? Any clay will do? or is it special clay for casting purposes, can I buy it on your website?
Sorry no one replied to this comment sooner. Please feel free to contact our tech support line toll-free at 800-762-0744 to troubleshoot this. Platinum-cure silicones such as Mold Star and SORTA-Clear exhibit nearly no shrinkage and have exceptionally long library lives.
@Anonpeace Any time the mold is in separate pieces or is cut, there will be a seam line. The techniques used to make the mold will determine the amount of clean up the final piece will need.
How would I make a 2 part mold for beads? I've watched your second video linked at the end, and this one, as well as many of your other videos, and I'm not sure how I would cast a mold for beads. I really want to make my own beads, but not sure how I could replicate them using Smooth-On products. I have the Mold Max 29NV and EpoxAcast 690.
Also, do you have a calculator for ensuring the amounts mixed are proportionally correct? I've wasted a lot of epoxAcast 690 due to calculating mistakes.
We do have such a calculator: www.smooth-on.com/support/calculators/#ratio In regards to your other question this is a good question for our tech support team, can you send them a ticket here? www.smooth-on.com/support/ticket/add/agree/ Thanks for watching!
Hi can u tell me does this silicone sticks to glass or it doesnt and can i use vaselin insted of mold relise sprey to stop two parts of the silicone to stick to each other
Silicone will stick to some glass. It is best to use a mold release such as Ease Release 200.
If the material has been chemically inhibited by, for example, exposure to sulfur, often the material will not ever cure. A heat gun or hairdryer would be your best chance of success, but take care not to scorch the rubber by going over 450F for too long.
Can we add color to the silicone rubber mold using paint or food dye?
You need to use a pigment specifically for silicone such as Silc-Pig: www.smooth-on.com/product-line/silc-pig/
how do you store silicon molds? do you wrap them or leave them in containers?
***** You can see how to properly store a mold by going here - www.smooth-on.com/faq_display.php?faq_id=37
thank u very much
a couple questions
What is a good transparent silicone to use?
where can someone get that release agent?
and can that release agent be used on clear RTV silicone 66B, it is used in automotive but i want to make a transparent thin mold of something and dont know enough about it.
would this do any damage to a painted object, or a Bakelite object? would you recommend waxing the object before you pour the liquid over it?
Is Sorta Clear a good choice for soap molds? Is any shrinkage involved? Mold Max molds shrunk like crazy, so I switched to Mold Star. The Mold Star molds are now starting to shrink. Does the cold weather cause this? Not only that, the newest batch of Part A had a bunch of hardened white stuck to the bottom of the bucket, that basically left white spots all throughout my molds. I am looking for no shrinkage 2-Part Molds.
Can I make both the mold and the cast out of silicon rubber?
Yes, but as silicone bonds to silicone, you will need to apply East Release 200 to the mold before casting the rubber.