100g black thermochromic pigment 31C/ 87F body heat will make clear

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100g black thermochromic pigment 31C/ 87F body heat will make clear:
$45.06

Note: Any orders for this item cannot be shipped out until Jan 5 2015This is 100g of black thermochromic pigment which changes from black to clear (whatever colour is beneath is revealed) when the tempurature rises over 31 degrees (~= 87F).This pigment is specifically made in the tempurature range to turn white/clear on contact with human body heat.
Some applications are the famous Rorschach real moving mask, novelty car paint/ colour changing car, painted clock, mood rings and so much more! The pigment once above the activation temp, will turn a translucent white, but for all intents and purposes transparent clear. Anything painted or printed beneath will be revealed when it turns clear, and thus becomes hidden when it cools down below 31 degrees.
How to mix into paint: I have make paint out of this pigment using ratios of 5g:10ml, 2g:10ml and 1g:10ml, all of which tested on paper with gloss, matte and fabric medium, the latter however has not yet been tested on fabric.
To mix into paint, first consider your medium, if it is very thick, use less pigment, if runny, use more, consider how thick your layer of paint is going to be, if your pigment is runny it will be easier to paint it on thinly and with thick mediums, the inverse is true.

For general use, use an acrylic medium, which can be purchased at most arts and craft stores, note the use of the word \"medium\" or \"transparent base\", most of the time they will be described as for \"adding effect\" or \"diluting\" paint\", which is true, but thats because they are blank paint increasing the ratio of medium : color, so dont worry what it says so long as the title matches, the type usually wont matter much. the most common mediums are gel, matte, gloss and fabric all of which come either cloudy white or clear, but they all set clear. gel is like vaseline or clag, its somewhat difficult to use, but it is often cheaper/ml and can sometimes be diluted with water or a solvent. matte and gloss will often turn out the same because of the pigment, which is a slightly rough paper-like texture, gloss however will be more reflective and plastic-like, but they are very similar. also, matte tends to be thicker than gloss so is better for pessimistic mixes. Lastly, frabric medium is a standard medium with the same consistency as normal acrylic paint, once set it is fairly flexible and resistant to cracking, this is applied usually via screen printing. All these mediums are available at dollars and sense and other $2 shops.

As for actually mixing it, it can be done by hand, simply pour your pigment and medium in together into the container you plan to store it in, and stire until all the pigment has diffused into the medium. however, after this happens, you will have a medium full of air bubbles, so let it sit for an hour or so and it will be fine. while it sits, cover it so your medium doesnt set.

An alternative method to mixing is to use paint thinner to accelerate the process. diggers premium all purpose thinner seems to work well, helping pigment mix directly into water even. Thinner will wet the pigment allowing for easier mixing into a medium, however, depending on the concentration and composition of the thinner, it may limit the paints lifetime to about 4-8 hours while wet. The lifetime is unpredectable some mixes have lasted indefinitely while others permanently turn white after 6 hours. Thinner, alcohol and acetone will all help the pigment become wet, and become a fluid suspension without air bubbles, but said paint must be used immediately and likely wont store well unless only a little bit of thinner or ethanol is used, any amount of acetone however will kill it.

The method, is to first place your pigment into your container, check that the container wont dissolve in your thinner, ethanol is compatible with nearly everything in this instance, next add a few ml of thinner and mix until all the pigment enters suspension, add more thinner if it turns really thick, also add a few drops of water at the same time, which will help later on. ensure its thoroughly mixed with no air bubbles, then add roughly half your medium you planned to use initially to mix into paint, and mix until there is no solid pigment lumps left. after that add the remainder of your medium and mix until it is appropriate for use.

This paint will be ready for immediate use, but depending on the thinner concentration it may not last at all, or it will last indefinitely, it is unpredictable, assume it wont last more than 6 hours and avoid letting the paint activate in this state, or exposing it to too much sunlight. once painted on i will be fine, the thinner will evaporate very quickly.

The pigment does not hang as grey, ever, unless you can simultaneously make half the particles activated and others not. Unless you have very very thick layers of paint with thermal difference between the surface and bottom, or the pigment in powder or liquid state, will it be grey.
To attain metallic silver you can mix with a metallic pearl, of which i have for sale. Caution should be taken when mixing this pigment, its extremely light and fine, breathing on it can blow it all away quite easily, its also hydrophobic and thus will not mix with water alone for quite some time, so using a high speed mixer should be done in such a way that no pigment can be blown away.
The pigment is not toxic and in power form, inert, but avoid breathing it in anyway.A very important note, do not allow the pigment to be exposed to large amounts of ultraviolet radiation, aka direct strong sunlight, without a UV overcoat, this pigment is not a simple elemental pigment like nickle oxide, its a complex hydrocarbon chain, and radiation easily breaks it up. Ambient exposure for long periods of time wont do anything, ive had that sheet in the picture laying around for years and its still not faded, but a few days in direct sun in the northern territory (sunlight so strong you get burnt immediately), the pigment faded to grey (so half of it had diminished) in 3 days. with UV coat after a week no fading occurred, and i then stopped.POSTAGEpigment is sent inside a sealed ziplock bag inside a thick card envelope, cd/photo mailer or small thin box depending on the amount you buy, additional item costs are inclusive of these upgrades. there is a 180g limit on large letter mailing, for any more either choose parcel or pay for two separate letters.within australia, prices are free local pickup, $1.80 for large letter, $7 for parcel post and $11 for express. registered letter option with tracking is also available for 20g or 40g, for $4 but it must be invoiced.
internationally, to new zealand and Asia postage is $2.50 and $4 to everywhere else.
Tracking is available free with all international orders, however scans are not mandatory so events may not show up, and it only works with the service that accepts it and delivers it to you, aka, UPS for USA, Singapore post for singapore. Your national service.
To get tracking, you MUST request it before or during checkout , or immediately within 6 hours of checkoutyou also have the option of parcel postage which costs $12 for Asia and new zealand, $15 for united states and surrounding countries and $21 for Europe and surrounding countries (such as middle east).
parcel post comes in a heavy duty cardboard box with packaging such as bubblewrap. Through parcel post there is absolutely no risk of damage/loss under normal conditions.
parcel post includes limited tracking services.Registered post is available also, for $20 to everywhere except Europe and the outlying countries, for registered post to anywhere registered is not selectable, please contact me for an invoice, registered post is typically $6 ontop of standard parcel post.
registered does not move faster but includes better tracking, signature on delivery and other assorted goodies.