So, the latest test I did, using a more resin-friendly dye, making sure the containers, tools, my hands, everything were as surgically clean and dry as possible, cured beautifully with no bubbles or delamination.
Except. It made a big ol’ wrinkly fissure in the back which tells me that it was somehow too cold while curing in the oven for three hours. Really? Really?
Alumilite is supposed to be a pretty user-friendly resin. I don’t want to see one of the “difficult” ones!
This is the fifth or sixth time I’ve done this trial and I’m thoroughly sick of looking at these little pink squares. At least the silicone is working nicely so let’s do it. Let’s make mould for Clariel!
Research is annoying, boring, and absolutely necessary. I bet you’re tired of seeing these little squares aren’t you? I sure am. Silicone and resin are both notoriously finicky substances. Each brand and each type has their own particular formula and behaviour. Luckily, I knew to expect this and bought extra to test and fiddle with before casting a big beautiful sword.
Always. Buy. Extra.
So what can you do when your materials are not behaving themselves they way they should? Search online for the answers, do some more digging, ask other artists, watch videos, read tutorials, contact the manufacturer. If it turns out that there’s more than one possibility, you’ll find yourself in the unfortunate situation I’ve been in for the past few weeks.
You have to make the best guess you can as to what went wrong and do it again changing only one thing at a time. It’s tedious and frustrating and you’ll really, really want to make it go faster, but it’s necessary to isolate the problem so you can fix it. If you change more than one thing and suddenly it works, (or messes up even MORE) then you’ll never know where the mistake happened in the first place! The ultimate goal is learning more about how the materials work so you’ll waste less and be more sure of yourself later on.
You’ve all seen my first attempt with Alumilite.
What happened? The resin was too cold. My workshop is only about 17-18 degrees Celsius. (Yeah it’s not so comfy this time of year.) That’s too chilly for Alumilite waterclear to cure and not even a heat gun on the mould beforehand made a difference.
For the second attempt, I put the silicone mould in my mini oven that I use for clay baking and propped the door open. This kept the internal temperature of the oven at a toasty 50 degrees Celsius.
Well, it’s not sticky at least … It cured all the way through, nice and hard, but there were weird, flaky patches on the surface of the resin. What could possibly have caused…
Wait a second. Ah! The plaster “jacket” I made to keep the silicone mould flat and secure was made of gypsum. Why is that important? Gypsum doesn’t conduct heat very well at all. That can be really useful for some projects. For this one, though, it sucked. The plaster caused the temperature of the resin to be inconsistent.
Worse than that, the flaking of the resin actually scratched the silicone mould. That means anything I cast with that mould will have scratches all over it. Greaaaat. So I had to make another mould. I made it double the thickness of the original mould so it could stay flat and secure all by itself.
Ah yeaaaaah! That’s what I’m talking about! The resin stayed nice and toasty throughout its curing and hardened all the way through. No stickiness, no weird bubbles, no probl- Oh. Yeah there are some dark flecks in there. It’s not a uniform pink.
Yeah, the dropper I used to put the dye in the resin had a semi-dried “booger” in it. (I call bits of congealed paint, glue, whatever that gets stuck in the nozzle of something a “booger”. I don’t think that’s the technical term for it.) So the clump of dye came out in the resin and failed to dissolve into it.
But I’m still happy. “Use a clean dropper” is a really easy fix!
As I always say: “There’s no such thing as perfection; only beauty.” So how can we feel better at being forever imperfect? Just have a look at where we started and see how much we’ve grown!
Are you stoked? I’m stoked! Let’s get to the workshop and make cool stuff!
I wanted to have some more positive news for you before I posted again but it looks like that’s going to come a little later than I hoped. Remember the pink plastic coaster thingy I said I was making?
Yeaaah, it’s not supposed to look like that. The darned thing just didn’t cure properly. I’ve been doing more research and realised that my workshop is too cold for curing Alumilite in small quantities like this. (It’s only about 4-5mm thick.)
The plaster jacket I made to hold the silicone mould nice and flat is unfortunately sucking the heat out of the material because gypsum is a substance with very low thermal conductivity. What does that mumbo-jumbo mean? Well it’s cold. And it stays cold. (There’s more to it than that but the coldness is the important bit to this project.)
It ended up sticky and not fully hardened. You can probably see my fingerprints all over it. That’s not good.
So, yesterday I ran an experiment with my mini-oven at work, heating up the resin and holding it at 50 degrees Celsius while it cured. I couldn’t stay for the last hour of its curing because it was my wife’s birthday and I had to go spoil her properly. But before I left, I noticed a few tiny bubbles that should not have been there and it looked like it was separating from the mould in a few places. Not good! But I didn’t see any cloudiness that would indicate it didn’t cure all the way through. If there’s still no clouding when I get to the workshop today, that means we’ve made some progress!
So, why are small things harder to cast with Alumilite than large things? Well, when you mix part A and part B together, the resin has a chemical reaction that causes it to harden. This chemical reaction is exothermic (it gives off heat). If the piece I’m casting is large enough, I don’t have to worry about the mould being chilly. The resin will heat it up nicely for me.
While I’d love to simply go ahead and cast the Clariel patiently waiting for me in its box, and I think it will do fine with its own heat, a sword is a LOT bigger than a wee coffee coaster and will eat up more of the resin. If I should mess up on a sword casting, that would be a very expensive mistake! This is why I’m doing something small first so I can understand how this material works and get a feel for it before I tackle the seraph blade.
Yes indeed; the lovely new vacuum pump I bought from Unicorn Tools seems to be working beautifully. I messed around with it for the entirety of Friday and managed to mostly degas 200mL of silicone.
Mostly. I was having some problems with this. For one thing, I had to tinker with the levels of oil inside the vacuum pump. The oil expands when it warms up so I have to be careful how much I fill it. I can’t just dump the oil in until it hits the “FULL” line because when I turn it on and it heats up, it will sputter and spit out the exhaust port. Yuck!
The other problem I had was that there were still bubbles in the silicone after 15mins of degassing. I had already been tinkering with the silicone for awhile and I was getting dangerously close to the end of its working time. If I didn’t just bite the bullet and use it, I’d have a blob of semi-solidified garbage and the material would be wasted. So I just crossed my fingers and poured it into the moulding box.
I don’t think you can see the air bubbles in the silicone from this shot. I was having problems taking a photo of a completely transparent object encased in a completely transparent layer of silicone. It’s a pain in the butt taking pics of a see-through object! The camera does not want to focus on it.
The green and white goo under the plastic square I’m moulding is just modelling clay. It’s there to keep the square stuck to the bottom so it won’t float and also to keep the silicone from sneaking underneath it. As you can see, I missed a spot. Oh well. That just means I’ll have to trim the silicone “flash” (extra bits of mould material that sneaked where I didn’t want it to go) when I take the mould out of the box.
Hopefully when I get to the workshop today, I will find that the air bubbles have escaped the silicone and I will have a nice solid, smooth mould to work with. Everybody cross your fingers!
I have a couple ideas as to why the silicone misbehaved. It could be that it was too old. It was very chunky and blobby when I took it out of its container. There’s also the possibility that the vacuum chamber was simply too big for this tiny amount of material. I’m going to try putting some extra stuff (plaster brick or somesuch) in the pot with the liquid I’m degassing to see if it will pull the air out faster and more efficiently. I’m sure I’ll figure it out. It’s just a little frustrating.
Before I run off to work, here’s a video of the new pump at work.
So the doctor didn’t say that I couldn’t go back to work when I had my last checkup. I may have ‘accidentally’ forgotten to ask. I have been bored to tears sitting on my duff, waiting for my silly body to fight off infection and heal up properly. All I’ve wanted to do for the past three weeks is just go to the workshop and make stuff!
Yesterday, I did just that!
The heck are you doing Ethan? That’s not a sword.
Yeah I know it’s not a sword, but here’s the thing: silicone and resin are both really expensive materials and I’m using a lot of new equipment at this point. So I realised I needed to do something small first to make sure that everything is working properly and the materials are doing what I expect them to do.
This’ll be a little sci-fi computer chip thingy that I can use as a coaster on my desk. I’m going to be testing out the silicone moulding compound, the Alumilite resin, and the resin dye that I bought. That’s right! This will be the first time I’ve done transparent resin in another colour! I’m excited. 🙂
I’d also like to take a moment to thank all of you who have been poking me for sword commissions. I’m so, so sorry for taking so long to get back to you. I’ve been struggling with this medical thing and it’s been no fun at all. I’m going to ask my doc if it’s at all possible to postpone the next surgery until the new year so I can continue working at my job for the rest of November and the month of December
I’m definitely not in danger of losing my workshop. I just want to make that clear so you don’t have to worry about that. But it would be really nice to at least be able to cover the cost of my rent with sword sales instead of taking it out of my own pockets as I’ve been doing.
I also want to reassure you that the medical thing isn’t a degenerative condition or anything. It’s just a quirky little birth defect that we’ve been working on correcting to give me a better quality of life. 🙂 The only reason I’ve had to go back for more corrections is because there were some complications with the healing. Apparently, the body took offence to the doc trying to do too much correction all at once so we’ve had to slow down and do the fixing-up in smaller steps.
That’s rather annoying for me cause it means I have to keep taking time off work for two weeks here, three weeks there to heal from each stage. As anybody who knows me well enough can tell you: I am not good at sitting around doing nothing all day.
In other news: the metro station near my house has opened up and that means I can get to and from work much more easily and much faster. Yay for less travel time! Instead of waiting for a bus, taking the bus to the nearest metro stop, taking the metro to the neighbourhood where I work, and then taking a bus from there to as close to my workshop as I can get, I can simply take the metro from home and skip the whole first bus leg of the journey.
Speaking of journeys … workshop tiiiiime! The workshop is my happy place and I can’t wait to get there and make some cool stuff! Catch ya later guys.
So, last year I posted an article about the struggles of cosplaying a Drow. How in the world can you get pasty beige skin to turn an obsidian shade of blue-black? On the face? No problem. On the hands … well, if you don’t need to touch anything you haven’t got a problem. But eventually you’re going to have to pee, or open a door, or eat something …
If you’ve visited a cosplay forum recently searching for solutions to this problem, you’ve been probably come across someone asking “Hey is there any way I can dye my skin black?” Or green. Or blue. Or whatever colour is required. And you’ve been disappointed to find a bunch of people crying “No! Don’t dye your skin! It’ll be there for weeks!”
How do I know? Because I did that. I do it every year to see if someone has come up with anything better than alcohol activated paint. AA paint is great! But it still rubs off on high-traffic areas like the hands.
That’s because your skin refreshes itself faster on the palms of your hands and the soles of your feet than anywhere else on the body. Those areas get the most friction and pressure because they come in contact with the world a lot. You walk on your feet (obviously) and pick up objects with your hands. If you have good hygiene, you’re washing your hands multiple times a day. That means that poor paint is going to take a beating and you’re going to have to touch it up periodically. Unless …
Unless you’re insane like me.
Ethan what the crap did you do?! Don’t panic. I used a few bottles of Inkbox freehand ink. Why? A few reasons.
I am crazy.
I’m hosting a Halloween party in which I will be serving food. That means I have to be washing my hands thoroughly several times over the night especially because one of my guests has severe allergies.
I am self-employed, I’m 33, and I’m an artist. That means I don’t give a fluff what people think of my weird black hands for the next two weeks. It’s not going to jeopardise my job or get me into trouble with my parents.
I am scheduled for a minor surgery on the Monday after Halloween and I’ll need 2 weeks to recover at home. Yep, your memory is correct. Inkbox lasts only 2-3 weeks maximum. Even if I did have to worry about my job, it’d be gone by the time I get back to it.
Why didn’t I dye the entire hand? Well, sadly 1 ounce of Inkbox freehand ink doesn’t go very far when you’re covering every square millimetre of skin rather than just doing a design. So I did the practical thing and dyed only the areas that will face the toughest test: the fingers and the palm. The back of the hand doesn’t get beaten up nearly as much so it’s quite fine to simply airbrush some alcohol activated paint from there on up. I don’t go around rubbing my face on things so it’s not necessary to dye that either. AA paint will do fine.
You might be wondering what’s up with that purple-blue marbling effect. That is a result of the ink’s gel-like consistency. It was very difficult to get it to spread on evenly. It did not want to cooperate. Imagine trying to get an even layer of sunscreen or grape jelly all over your hand. It’s not as easy as you might think. There are areas where it’s not quite as thick and consequently, they don’t dye as darkly. I still have a little ink left that I can touch up the marbled bits with or I can just spray a little AA paint on it. Frankly, I don’t think anyone will notice.
So what do you need to know if you want to do something insane like this?
What is the product made of? If you’re using Inkbox, awesome. Go nuts. It’s 100% fruit-based and will not hurt your skin. If it’s henna or jagua, go nuts. Those are safe. Any other inks/dyes? You have to know what’s in it. HAVE TO. I’m not kidding. Some hair dyes and similar things have additives that will lead to permanent scarring, rashes, permanent chemical sensitivity, chemical burns … it can be bad, okay? If you don’t know what’s in the product, find out. Please. It’s worth it.
Got a skin safe product? (Or one you’ve researched thoroughly and you’re pretty sure it’s fine.) Okay. Test a wee dot of it somewhere inconspicuous. Wait at least an hour. Wash it off. Look for any signs of skin irritation. Wait a bit longer. Still no signs of irritation? Okay. Test a bit more of it. Make a little doodle. Same procedure. If it still shows now sign of rash or swelling and it’s not itchy or painful, it’s very probably fine and you can proceed.
Don’t dye any more of your skin than you have to. Pick the areas that are going to give you the most trouble and get those first, especially if your supply of dye is limited.
Dye only one hand at a time. You will inevitably have to pee. Yes I know this from experience. LOL!
DON’T. TOUCH. ANYTHING. I have smudges of ink on my right forearm, my left shoulder, and a wee bit on my CHIN from my little dyeing adventure. I have no idea how these transfers happened but I must have touched other skin areas accidentally while I still had ink drying. Just … put on a marathon of your favourite show and try not to fidget. That’s also why I suggest not dyeing any more of yourself than you have to. It … wanders. Somehow. It’s annoying. LOL
Do you have an employer/parent/teacher/authority figure you have to deal with in the next 2-3 weeks who will NOT be okay with your re-colouring experiment? If so, this might not be for you. You might have to either clear this in advance with them, or stick with alcohol activated paint.
Who should consider skin dying as a solution?
Anybody doing a multi-day convention who wants to save time on makeup application in the mornings and not have to touch up their body paint during the day.
Anybody doing a multi-day LARP out in the forest or the back end of nowhere who doesn’t want to fuss with makeup when they’re going through the inconvenience of camping and limited potable water.
Anybody doing a theatre or film production who has to wear body paint and prosthetics many times who wants to save time on makeup application.
Crazy people like me. LOL
Any questions? Feel free to ask! I’m here to satisfy your cosplay and LARPing inquiries and I don’t mind testing products. Together, we can find unconventional solutions for tough costuming challenges. 🙂
Hi everyone! I’ve been doing a bit of product testing with the Inkbox freehand tattoo kit. This is a type of temporary tattoo that is very much like traditional henna but black instead of reddish brown. It looks exactly like a real tattoo and it will not come off no matter how much sweating, scrubbing, or scraping you do!
I was curious to see if this stuff was really as robust as advertised so I put it on the most high-traffic area of my skin: the palm of my hand. I wanted to see if Inkbox could prove itself under the harshest conditions. Hand-washing multiple times a day with regular soap, dish-washing, wearing work gloves and operating power tools, sweating, showering … I was not gentle or careful with it.
So how did it perform?
This image was taken the day after I put the temp tattoo on. Oct. 13th.
This image was taken on Oct. 17th. Hasn’t budged at all. (The wee smudge of ink over by my pinky finger is marker from a project I was working on. Not related to the tattoo.) As you can see from the rough scrapes on my skin, I was not coddling it at all.
Here’s a pic from this morning, Oct. 20th. I tried to get a nice close photo so you can see that it’s just starting to fade now.
So how does Inkbox work? Pretty much the same as henna. You doodle it on your skin, let it sit for an hour, then go wash it off with regular soap and water. No special treatment needed. The design will look faded when you first wash it off, but don’t panic. It will darken in a few hours/overnight.
This is because Inkbox dyes/stains your skin but don’t let that put you off. It’s a fruit-based dye that is completely harmless. It will fade naturally over 1-3 weeks as your skin cells refresh themselves.
How long it lasts depends on how thick you put on the ink. The tattoo on my palm is the result of spreading on the “goo” about 2-3mm thick. I did another test on the back of my hand with only 1mm thickness. Let’s take a look at that one.
After 1 day, Oct. 13th.
Some barely-noticeable fading on Oct. 17th.
And this morning, Oct. 20th. It’s noticeably faded but still obvious to anybody looking at it.
So there you have it! Doodle, wait an hour, wash it off, and you will have runes you don’t have to touch up or worry about smudging no matter what you do. No mess, no weird smells, no needles, and best of all no regrets. It’ll be gone in three week’s time.
Are any of you being Shadowhunters for Halloween? I’d love to see your rune-drawing skills!