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Step 5: Coloring Oogoo

I was pleasantly surprised to discover that all it takes to create vibrant colors in Oogoo is very small amounts of linseed based oil paints. Apparently the pigments in oil paints are very fine and dense so a little goes a long way.

About the equivalent of 5 or 6 drops of oil paint per teaspoon of silicone will result in solid colors. I mix the color well with the silicone before adding the corn starch.

While you can leave it white, it is a good idea to add some color to make it easy to see if you have a well mixed batch. Adding color does not appear to significantly effect the hardness or flexibility of the final result.


<p>Lots of cool applications possible. Thanks for posting such a useful Instructable!</p>
<p>Just FYI there are TWO types of Silicone I - clear and white. (I'm not referring to Silicone II which is also white.). I've found the white Silicone I to be far less effective than the clear version.</p>
<p>Curious, has anyone tried this with baby powder?<br>In the wiki description, sugru is made with talc.<br>While corn starch is a better choice for baby bottoms, might the mineral talc be a good choice of this? Experimenting soon.</p>
<p>Most baby powder nowadays *is* corn starch. Mineral talc was found to be dangerous to babies. So the only difference is price and scent. Usually the foodstuff version is cheaper.</p>
<p>Most baby powder nowadays *is* corn starch. Mineral talc was found to be dangerous to babies. So the only difference is price and scent. Usually the foodstuff version is cheaper.</p>
<p>I have a wooden object that I want to duplicate in a different material .. possibly HDPE. can I use saran warp to keep the Oogoo from sticking to the wood so that I can make a mould? </p>
<p>Is this Oogoo UV stable? I'm want to repair my van's deteriorating window seal which will be in the sun and weather.</p>
<p>J great stuff J just wondering if this stuff<br>is food safe?</p><p>The dentist wanted 120 yoyos for a new set<br>of bruxism guard (night grinding) so I<br>mould my self a set from alginate and cast one from plaster and used sugru to<br>mould which worked very nicely probably better then the first ones I got from<br>the dentist.</p><p>However I learnt that these are not food<br>safe thus I&rsquo;m looking for another material to use.</p><p>It be great if this stuff would work if not<br>can you recommend a material that is?</p>
<p>There is a one component food-safe version of silicone caulk. It is still based on the water-curing, acetate-releasing mechanism which this project is using.</p>
<p>Oogoo is awesome, but if you make it with the regular clear hardware store silicone it is extremely NOT FOOD-SAFE, don't put it in your mouth. You can buy two-part food-safe silicone mold making material, that might work for what you are describing. (Do your homework on that, I'm just suggesting it as a possibility.) When trying to find this sort of information, the first thing you want to check is the msds (safety data sheet (SDS), material safety data sheet (MSDS), product safety data sheet (PSDS) etc.) It's what the hospital uses to figure out how to treat people who put things in their mouths...</p>
<p><a href="http://www.msdssearchengine.com" rel="nofollow">http://www.msdssearchengine.com</a></p>
<p>HELP: <br>Can someone in Australia provide the Brand Names of the Caulk used please, there are so many to choose from.</p>
Sugru SHELVING brackets hold weight; I'm wondering if anyone has experience with Oogoo to hold a SHELF?
<p>Hey, does anybody know if I could remove this? Real sugru apparently comes off if you need it to, and I'm planning to attach some sugroo/oogroo to my locker, but it can't be permanent. Does anybody know?</p>
<p>i do not know. but try this on a piece of metal then try different ways of taking it off.</p><p>For hot-melt-glue i use rubbing alcohol (RA) and tweezers. i close the tweezers then dip the point in the RA, then press the tip where the glue meets the metal. the RA then flows between the glue and the metal, separating the two.</p>
<p>will this work for casting aluminium? if no, could it stand lead?</p>
<p>use the lost wax method. <a href="https://en.wikipedia.org/wiki/Lost-wax_casting" rel="nofollow"> https://en.wikipedia.org/wiki/Lost-wax_casting</a></p><p><a href="http://www.onlinemetals.com/meltpt.cfm" rel="nofollow">http://www.onlinemetals.com/meltpt.cfm</a></p>
<p>Dear Mikey77 and all of the helpful commenters here, thank you! This stuff is the bomb! My husband and I have been using it for 4+ years to make relief sculpture molds for our costumes. Over that time we've refined the method specifically for this purpose. Many artists ask us how we do it , so we just made a pdf booklet called &quot;Oogoo for artists&quot;. Check it out here</p><p><a href="http://organicarmorarts.com/product/oogoo-for-artists-book/" rel="nofollow">http://organicarmorarts.com/product/oogoo-for-arti...</a></p>
<p>I cannot express how amazingly wonderful this is without falling back on expletives. So just let me say from the bottom of my impoverished sculptor's heart, Thank You!</p>
<p>I found out that Zippo lighter fluid is also quite a good thinner for Oogoo, it cures at almost the same speed and I can't find any difference in cured texture. Granted, I didn't use a huge amount, just enough to make it easy to mix and spread. </p>
<p>When this cures, is it very flexible, or does it get rigid?</p>
<p>I wonder how long will it last or if it rots over time, maybe attract ants, roaches or other bugs?</p>
<p>Nope, it does not attract them. Made mine around one year ago, still the same like when it was made. The only thing is that it does not feel powdery anymore, since I use 1 to 1 ratio.</p>
<p>I put the silicone and the starch in a zip lock bag and stir it by kneading the bag until it begins to release from the bag. I can then handle it without it sticking to my hands. Time is short at this point, so I have my project set up already.</p>
it works and its a lot cheaper but it is messier and has some things it cant do but it feels real nice when its dry
it's actually works but it can't quite do all the things sugru can but its a hole lot cheaper!!!
<p>Does anyone know how to make this a little bit harder and more rubber like? More cornstarch or something?</p>
<p>Back in 2010, when Picaxe was still relevant =3</p>
<p>wow!</p>
<p>Wow! Very cool project! I think I will switch over to this. I like Sugru, but it is way too expensive! I see you have done some extensive testing on Oogoo's properties.</p>
<p>I've tried to make my own ooggoo but I think I have some problem.<br>Two days after making the oogoo and it is still sticky.</p><p><br>I used 2:1 silicon:corn starch + 2 drops of color.<br>I have a small flat rectangular left over. I can roll it to a cylinder and it will stay that way until I reopen it.<br>Is this normal?<br>How long does it take for the ooggoo to get to its final stage?</p>
<p>Hey, does anybody know if I could remove this? Real sugru apparently comes off if you need it to, and I'm planning to attach some sugroo/oogroo to my locker, but it can't be permanent. Does anybody know?</p>
<p>Just wanted to add this, since I didn't want to deal with cleaning up measuring spoons, and to make it easier to do any size batch. From my calculations, if you are doing 1 tbs parts, by weight it is 0.729 oz (or 0.73 oz, depending on how far your scale goes) GE Silicone I to 0.28 oz of Corn Starch. I haven't made anything yet, but I'm gearing up to. Thank you for this Instructable!</p>
<p>Great job! Just wondering, is it supposed to be so... Slippery feeling? Or is that because I have to sand it down a little to give more of a rubber feel?</p><p>Also, for anyone wondering, I have used Vaseline as a mold release, and it does prevent the silicone from sticking. All you have to do is use a thick coat of vasilene over the mold, and the silicone (If its what your using) will not stick.</p>
<p>Great stuff. I used it make a rubberized casing for some electronics. </p><p>I found it was pretty sticky to work with while wet, so my hand molding tended to leave the rubberization on the finished product looking pretty lumpy.</p><p>does anyone have any good suggestions for applying an even coating of it on a surface such as a metal housing?</p>
<p>Wow - great post! Thanks! <br>Question: Do you have a feel for how well this would survive over time inside a dishwasher? (I need to do basket repair)</p>
Already my first attempt was a full success - thanks a lot ?
<p>Great! I think about modelling a stop-motion-puppet... Oogoo could work over an armature ... Thank you!</p>
<p>This is, in a word, awesome. One more cool thing to do with corn starch. I can't wait to try it. I might go poor(er) buying tubes of silicone caulk, but I have simply got to try it. Thanks! :-)</p>
<p>On hackaday (see below) one person said they used bleach instead of corn starch. </p><p>Does anyone know if this is a good or bad idea? </p><p>Other than the normal dangers of working with bleach <br>(fumes, chemical burns, staining your clothes, etc.)<br>would this create toxic fumes or result in a more toxic plastic, <br>or have any different properties that might be useful <br>(such as more or less flexible, bendable or rigid, etc.)?</p><p>Much appreciated... </p><p><a href="http://hackaday.com/2010/10/11/oogoo-a-home-made-sugru-substitute/" rel="nofollow">http://hackaday.com/2010/10/11/oogoo-a-home-made-s...</a></p><p>&gt;&gt; Bob C. says: October 12, 2011 at 1:14 am</p><p>&gt;&gt; ...</p><p>&gt;&gt; I just made some of this stuff and used regular household bleach </p><p>&gt;&gt; instead of corn starch and a few drops of acrylic paint. </p><p>&gt;&gt; 2 drops of bleach for every full trigger pull of GE Silicone I, </p><p>&gt;&gt; it worked GREAT&hellip;</p><p>&gt; </p><p>&gt; Jerry Carter says:</p><p>&gt; August 28, 2013 at 11:04 am</p><p>&gt; Thanks for the alternate recipe! Sounds like bleach would </p><p>&gt; mix more readily than corn starch as well<br></p>
<p>I can't comment on the chemistry, but given a choice, I would go with the corn starch, for exactly the reasons you listed. I'd rather work with something I know is safe and non toxic and not going to harm me or the environment. </p><p>The only way to know if the bleach makes a difference, for better or worse, would be to try it. I have to disagree with the comment that it would mix more readily though. In such a small amount, it would be difficult to get it mixed evenly, especially when you can't see it. And 2 drops for every trigger pull is not really an exact measurement. How big of a drop? What happens if you get 3 drops instead of 2? Can the ratio be adjusted, as it can with the corn starch?</p><p>If you have tried it with the bleach, it would be interesting to know what the results were. </p>
<p>can someone explain why the silicone 2 will not work for this? It seems to be more easily avaliable to me, but I don't quite understand why it's different</p>
<p>I don't understand the chemistry, but Silicone II cures differently. It is a rapid cure caulk, and for some reason doesn't work well by adding other materials to introduce moisture into the caulk (which makes Silicone I caulk cure all the way through).</p>
<p>I was able to find the sil I caulk type after a couple stores, been a lot of fun expitimenting with this stuff!</p>
<p>Hello,</p><p>I am having trouble with the drying process. First off, I mix the cornstarch and caulk in a container until it is fully mixed. I continue to mix it, then I use my hands to start to shape it. At this point, the oogoo is very sticky and the consistency is not as thick as clay. I finish shaping it and it resembles clay and has a matte finish. It does degenerate when I push on it. I let it go for about 2 hours, and it still degenerates! It is not rubber at all! I used a 1:1 ratio. I was thinking one issue might be that I am working in a humid environment. I mix and shape the oogoo outside, but after about 5 minutes outside I take the oogoo inside for it to &quot;harden&quot;. PLEASE HELP!!!!</p>
<p>Make sure you are not using the &quot;Silicone II&quot; caulk. This is a quick-curing caulk that does not work well when you include additives like cornstarch. Instead , get the &quot;Silicone I&quot; caulk. It's cheaper too!</p>
<p>Are you sure you are using 100% silicone caulk? I tried it with some sealant we had and it wouldn't harden at all but that proved not to be the right caulk. With the 100% silicone there is a really strong acetic acid smell and that has worked every time for me.</p>
I see that you are having some trouble, and I am too. I tried something this morning though. I suggest before putting the Oogoo on the plastic molds, rub them in something that's liquidy and never dries, like vegetable oil. I'm sure that this will work. Just don't wash the oil off until after you take the oogoo out of the mold.
Of course, this only for plastic molds. I'm afraid I can't help with anything else.
<p>if your mix seems to act more like vaseline than putty it may be because the caulk you are using is too old. I learned that there is a shelf life on silicone caulk the hard way. recaulking the bathroom was no fun but at least the internets let me know that it wasn't a skill fail but a materials fail.</p>

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