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Topic: The random RESIN question thread!  (Read 306912 times)
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Diane B.
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« Reply #1300 on: May 06, 2009 10:19:28 AM »

Quote
cameo or picture frame cameo style pendants.  My problem is that the few times I have done anything with resin, I end up with the top (or bottom rather after it has been taken out of the mold) being raised on the edges and sunk in the middle.  Is this normal or am I doing something wrong?  I want to pour the resin into the middle of the cameo frame setting, but don't want to end up with sunken results... does that make sense?  .

stitch81, after starting to respond to your question, I noticed that you said "after it has been taken out of the mold" so now I'm confused as to which kind of resin you're using (polyester or epoxy) and whether you're using a mold "when you pour the resin into the middle of the cameo frame."  The fixes would be different depending on those variables.  (Sinking in the middle --shrinking-- is common for resins to some extent.)

If you're using a polyester resin in a deep mold then removing the resin from the mold after curing, you'll just want to sand those raised edges off, then buff.  When using resin from a mold though, the top side of the cured resin will usually be the bottom side of the removed cast resin so usually that won't be a problem because it's not visible.

If you're using an epoxy resin to pour into a shallow permanent "cell" though where the "top" part will remain the top part, then here are a few things you can try:
(these are suggestions from my Resin page http://www.glassattic.com/polymer/other_materials.htm )

1....fill the cells to the top and also just a bit more (the resin will dome a bit and not run down the sides if you pour just enough)

2....do a second thin pour after the first pour is cured... or do the second "pour" with a clear polyurethane, etc, instead of resin

3....all? resins appear to creep up the edges of a pour (actually they're shrinking as they cure) which will leave an uneven, unrealistic water's edge (this commenter was talking about making a faux pond, but the concept would be the same)..I've heard how to hide those areas of creep with boulders, foliage, or dull paint (but I would like to know other ways)
......I was told seal the edge (the bank) by painting on some matte acrylic medium so that area will then resist the resin while it's curing (and shrinking), and allow it to flow back to flat
.........(he also said to pour from the middle of the lake or river, and there shouldn't be as much creeping... or so he says). Martin
...about.com says" you will need to apply a final edging (of resin) to your water to eliminate the edge left as the resin pulled away to the centre of the pour."

 

Quote
Also, I've been having the devil of a time actually FINDING the darn cameo picture frames, or bracelts with that style on them to make my projects... any ideas there where I can find the supplies?  Online sites would be prefered as I have already exhausted the local stores and they have nothing.

Locally, these are now being carried as "beads" by Michaels and other craft stores sometimes.

But you can find online suppliers too:

http://www.fancifulsinc.com (both bracelets and individual bezels)
...(also check out other "jewelry supply" sites, like firemountaingems, etc:
http://www.google.com/search?q=jewelry+crafts+suppl )

individuals also sell them like Sherri Haab for example, in her Jewelry Supplies:
http://www.sherrihaab-shop.com/index.php
...and also individuals on e-bay and etsy

You might also want to check out some of the links to lessons and videos on my Resin page (the link above --under the "Cells" subcategory there perhaps) since I think that sometimes the lesson givers suggest suppliers too, or sell them themselves.


HTH,

Diane B.
« Last Edit: May 06, 2009 10:33:06 AM by Diane B. » THIS ROCKS   Logged

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« Reply #1301 on: May 19, 2009 04:42:08 AM »

I'm sure the answer to this will be a screamed 'Don't be stupid! Of course not!!' but can you use the small watch batteries in resin embedding? I'm assuming not due to explodingness, but thought I'd see!
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dmkk1968
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« Reply #1302 on: May 20, 2009 04:56:05 AM »

great info thanks!
david


You can make your own molds out of latex or silicone.  Basically you create one master pendant that you like (out of clay, wax, etc), and then pour the mold-making material over it and let it set.  Then you can pour/press whatever resin casting material you want in and make tons of them!  

This tutorial is not really jewelry-related, but it gives a really nice step-by-step guide to creating your own molds without having to buy too much stuff:

http://www.hirstarts.com/moldmake/moldmaking.html
« Last Edit: August 01, 2009 08:31:21 PM by jungrrl - Reason: edited to comply with Craftster guidelines. » THIS ROCKS   Logged
dmkk1968
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« Reply #1303 on: May 20, 2009 12:12:39 PM »

GREAT GREAT INFO...thank you so much for your posting!
david


I've *just* been doing a lot of research on resins (for my website), and have found out a lot of things that most people don't know it seems (...no wonder!...some of it is really really hard to get straight).

First . . . there are different types of resin  (...most people I've come across talking or writing about resins don't seem to know that, so they end up dicussing "their" resin as if it were the only one).  This gets confusing because the characteristics of one resin aren't always the same as those of the others.

Here's just some main info about resins...

The types of resins that crafters and artsits generally use are "polyester" resins and "epoxy" resins (there are also acrylic resins and urethane/polyurethane resins... at least).  

The polyester resins are more "toxic" than the epoxies, and more fiddly to get right, but they are cheaper and can be poured to greater depths in the same session (just a few of their differences) ...some common brands are "Castin'Craft" and "Clear Polyester Casting Resin".  Polyester resins do come as two parts, but very little of one part is added to the other part (just a few drops) ...(whereas epoxy resins are mixed in equal ratios). Polyesters are also used in other applications --between layers of fiberglass, for instance.  
Polyester resins are also often referred to as "casting" resins, but epoxies can be "cast" too since that just means they can be cured while in a mold to create a shape.

Epoxy resins are a bit more complicated in their types.
....In general, all epoxies are a bit more expensive than polyesters, but they're also much easier to get right, and have much less "toxicity" and really-stinky odor.  

...The epoxy resin that's usually discussed around craft circles is the one that results in a "hard" surface a lot like polyester, but it's a bit stronger (....some brands you might hear of are Ultra-Glo, Envirotex Lite, and Aristocrat Liquid Glass).   Epoxy's primary disadvantage is that it can't be poured deeper than 1/8" at one time... it can have more layers, but each has to cure fully first.  If poured thicker, it can show up a yellowish cast (...not to be confused with the yellowish cast all resins will get if they're exposed to much ultraviolet light from direct sunlight or fluorescents)

...The other most common epoxy resin cures with a softer, somewhat rubbery surface, and is primarily used for making "artificial water" in clear vases with arrangements of artifical flowers/plants ("floral setting resin").  This type is easy to use, low toxicity, but it's primary disadvantage besides the softer surface is that that makes it prone to collecting dust (brands include Aristocrat Liquid Illusion, Clear Elegance, Aqua Clear).

There are some newer one-part materials which also give a clear thick plastic surface which I think are also resins, but one may not be ---these are meltable or can be poured straight from the bottle (brands include ...Scenic Water and Wonder Water for the meltables, and Realistic Water by Woodland Scenics for the other).

All the resins can be used to create thick coatings (or thin coatings) and can be cast in molds temporarily ...or they can be cast in permanent "containers' such as fake landscaping (like model railroaders use) for ponds, rivers, etc., in miniature scenes, or in permanent metal cells, etc., as faux cloisonne, over transfers in deep frames, etc. (as far as I know anway... though some may work better than others for diff. things).

I'm still working on the page at my site where I'm trying to sort out all the info about resins, how to use them and problem-solve, ideas for things that can be done with them, etc., but if you want to check it out now for what I have, here's a link:
http://www.glassattic.com/polymer/other_materials.htm

Hope that helps at least a bit,


Diane B.
http://www.glassattic.com ....polymer clay "encyclopedia"
Table of Contents: http://www.glassattic.com/polymer/contents.htm

« Last Edit: August 01, 2009 08:41:14 PM by jungrrl - Reason: edited to comply with Craftster guidelines. » THIS ROCKS   Logged
Diane B.
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« Reply #1304 on: May 20, 2009 12:19:35 PM »

Quote
GREAT GREAT INFO...thank you so much for your posting!


You're most welcome, David!  (and finally someone who appreciates my long-windedness...lololol Grin Grin)


Diane B.
« Last Edit: May 20, 2009 12:20:06 PM by Diane B. » THIS ROCKS   Logged

POLYMER CLAY "ENCYCLOPEDIA" 
http://glassattic.com/polymer/contents.htm
few of my photos
http://s96.photobucket.com/albums/l163/DianeBB
(had to move them from YahooPhotos, so many now without captions)
*lguernsey*
« Reply #1305 on: June 04, 2009 11:10:12 AM »

Well I need some help please, I figure that this has been coverd here but I just couldnt locate it.
   Here is what i want to do is make my own molds, I have a pendant that i love and i would like to make a mold of it, so I tried polymer clay made my impression and baked then i did the resin thing with a release well I had to break the clay to get it out, and theres clay on it that I cant get off, keep in mind I have very limited acess to materials I have a walmart and a lumber yard in town and a farm store, so unless I travel or order off line I have to think out side the box, and I have tried silicon you use for like doors and windows, and some for use on cars and they didnt work..
    I got to micheals yesterday and off coarse they had no mold stuff they where sold out , I was so sad, and it will be 2 months before I get to go back... 
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Diane B.
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« Reply #1306 on: June 04, 2009 11:30:01 AM »

There's not a lot you can use if you actually want to make detailed molds for resin and hope to get the cured resin out without a release (and when a release is used for resin, it has to be done right to work).

The best thing for smoothness and detail would probably be a 2-part silicone putty.  (I don't know though that silicone-based grouts and glues will work well for smoothness reasons and for other reasons.)

There are a number of brands of 2-pt silicone putty you can buy (at craft, hobby, and art supply stores), but you may be better off just ordering it online.  It should come pretty quick.

There's a bunch of info on brands of 2-part silicone putties and the characteristics of each, and sometimes where to get them, on the Molds page of my site, if you want to check them out:
http://www.glassattic.com/polymer/molds.htm
(...click on the subcategory 2 Part Silicone Putties under the category Making Molds Yourself, then scroll down to the Putty Type... and also scroll down to the Brands)


HTH,

Diane B.
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POLYMER CLAY "ENCYCLOPEDIA" 
http://glassattic.com/polymer/contents.htm
few of my photos
http://s96.photobucket.com/albums/l163/DianeBB
(had to move them from YahooPhotos, so many now without captions)
*lguernsey*
« Reply #1307 on: June 04, 2009 11:43:18 AM »

I did use a release with my resin but I still couldnt get it out of the clay mold, so I am taking it that you can use polymer clay to make molds for resin?
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Diane B.
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« Reply #1308 on: June 04, 2009 11:48:10 AM »

Generally, you can't use polymer clay molds for resin, though as I said if the right release is used exactly in the right way, it could be possible.  Clayers haven't tried that much though because the silicone putty is so much better.

Diane B.
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POLYMER CLAY "ENCYCLOPEDIA" 
http://glassattic.com/polymer/contents.htm
few of my photos
http://s96.photobucket.com/albums/l163/DianeBB
(had to move them from YahooPhotos, so many now without captions)
EnginerdLisa
« Reply #1309 on: June 07, 2009 03:57:56 PM »

I know the difference between polyester and epoxy resins has been explained, but I am interested in finding out what most people use.  So for the resin people out there which type do you use, and if you have a brand you prefer what is it.
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