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iSkin tears/splits/rips around button holes

When my iSkin arrived, I noticed several areas (ie the Hold switch hole, the other 4 button holes) that had what looked like little pieces of silicone missing... I assumed these areas were where the factory workers cut off excess silicon from the molding process. At the time I didn't think these areas would pose a risk of tearing over time. However, recently I've noticed that there seems to be a couple of small splits in the iSkin around the button holes, specifically the right (fast forward) button. There is also a small split in the right corner of the screen hole. I have only taken the iPod out of the iSkin a few times to wash it, and the iSkin has been indoors its entire life and been well taken care of. Currently these splits/tears are on the inside part of the iSkin (the part touching the iPod's face) and don't go all the way through the material, but I'm worried that they could get worse over time. Has anyone else had this problem? I'll try to get some photos uploaded, but the tears are rather hard to see unless light hits them at the right angle.

Thanks for any help any of you can offer.
[1151 byte] By [knivesout] at [2007-11-9 13:45:51]
# 1 Re: iSkin tears/splits/rips around button holes
This is very strange, please post a picture of it.
Here in China we constantly test the cases by putting in and removing the ipod over 400 times, we grab hold of the eXo from the small menu buttons (which is the thinnest part of the case) and stretch it until it break and our tests show you have to stretch it 3 times + + to make it tear much more than you would every stretch it in normal use. We can also make it almost impossible to tear but then the manufacturing would be very difficult. They would have an extremely difficult time removing the access silicone around the opening. We also put it in a freeze and then remove it to test it. I am very interest in your situation so if you can post the picture here or send it to lajo@lajo.biz. Don?t worry I will not leave you with a defective case I want you to be happy with your purchase.
Lajo at 2007-11-15 15:43:42 >
# 2 Re: iSkin tears/splits/rips around button holes
I noticed something similar--mainly at the lower right corner of the screen opening, but also at the lower left corner and upper left corner. It looks some very tiny pieces of silicone are missing or like the window was nicked when it was removed from the mold. Like yours, mine is on the inside edge. However, I've only been inserting and removing my iPod through the round opening, so I don't stress the nicks.

I've included a photo of the inside lower left corner to show you the splits and discontinuities in the silicone. This is in contrast to the very well-finished edges along most of the openings. This is very nit-picky stuff, but if there were stresses at the nicks, it's likely that this is where the splits would occur.

Only Lajo knows if this is within his manufacturing tolerances.

iScientist
iScientist at 2007-11-15 15:44:42 >
# 3 Re: iSkin tears/splits/rips around button holes
Thank you very much, I will look into this and get back to you.
Later I will try to post photos of how a case is made so you get a better idea what a case goes through before it ends up in your hands.
Lajo at 2007-11-15 15:45:51 >
# 4 Re: iSkin tears/splits/rips around button holes
Lower left screen window--some small imperfections here too. Keep in mind, these are very magnified images--you might not even notice them and I'm not sure they would affect anything. I certainly wouldn't return it for something this small.
iScientist at 2007-11-15 15:46:46 >
# 5 Re: iSkin tears/splits/rips around button holes
Here's what a perfect corner looks like.
iScientist at 2007-11-15 15:47:44 >
# 6 Re: iSkin tears/splits/rips around button holes
Thanks iScientist. Nice pics.

I'm interested to see Lajo's explanation of the production process... I was always the kid who LOVED watching the Reading Rainbow and Mr. Rogers tours of factories. Hell, I still watch those today ;)
azdude at 2007-11-15 15:48:54 >
# 7 Re: iSkin tears/splits/rips around button holes
Hehe iScientist, you're faster on the draw than I am! Your split in the lower right window looks very similar to mine. Do you have similar splitting in the 4 button holes? My iSkin is White Frost too (I have the 30 GB model)! Is yours a 10/15 or a 30 GB model?

hmm... this is just a thought, but my brother has a snow iSkin and I don't think it has the splitting that mine does. Could the pigment cause differences in different colors of iSkins?...or maybe it's just more noticeable with the translucent colors.

It's late, so I'm going to bed, but I'll try to post pictures of the rips near my iSkin's button holes tomorrow morning. Like iScientist said, they are indeed very small; I just don't want them to get any bigger.
knivesout at 2007-11-15 15:49:47 >
# 8 Re: iSkin tears/splits/rips around button holes
I have a nasty rip on the bottom along the seam where you'd plug in the cable...!!!
jasonmccabe at 2007-11-15 15:50:49 >
# 9 Re: iSkin tears/splits/rips around button holes
The profile that you show is not the profile of eXo around the screen area the profile is like your last photo. The 2 previous photos show a lip at the lower part of the opening and eXo does not have that lip. The translucent light of the 3rd photo is characteristic of this Japanese silicone and the other 2 seem to be flat more rubbery looking I am not sure if it is the lighting you are using. I will get some more magnification to see if I can see what you see and compare. Each mold has a fingerprint that cannot be duplicated even if you try that is why it is so easy to copy right these designs so it will be very easy for me to find this spot on the case. To explain further when each case is made it is made with over 200 lbs per sq inch of pressure and at over 200 degrees so the silicone fills every void in the mold and each case from the same mold has the same fingerprint
I am a little busy today so I will try to do it tomorrow after I buy some magnification equipment and duplicate your photo.
Once again thank you so much for taking these photos and providing this valuable information that can only improve my production in the future.
Lajo at 2007-11-15 15:51:47 >
# 10 Re: iSkin tears/splits/rips around button holes
Lajo,

That pic with the lip looks like it was taken with the iskin inside out. The inside of the iskin around the screen has a small lip.
dmarcus48 at 2007-11-15 15:52:48 >
# 11 Re: iSkin tears/splits/rips around button holes
I have a problem with that too because with the eXo turned inside out the outside edge at has an extreme 90% angle and in the 1st and 2nd photo it appear to be more rounded. We have a 90% angle to allow the silicone to seperate. The texture of the silicone is not the same, seems to be 2 different products from the 3rd picture and the 3rd picture is our silicone or similar to ours. Also when you turn the eXo inside out it will not lay flat like it appears in the picture, take your eXo and try it for yourself. But I have not tried looking at it with a microscope to duplicate the size as in the 3 photos.
Lajo at 2007-11-15 15:53:56 >
# 12 Re: iSkin tears/splits/rips around button holes
Ok, some explanation about my imaging technique. The case is a White Frost 30 gig turned inside out. To add contrast, I slipped a black lens cap inside the case. The case was then placed face down on my Epson 2450 Photo scanner and scanned at 1200 ppi. The scanner cover held the case somewhat flat, although not very well at the top corner (3rd photo). The images were downsized by about 10% before posting.

The magnification is approximately 10.8X (1200 ppi-10%)/~100 ppi (approximate screen resolution).

iScientist
iScientist at 2007-11-15 15:54:54 >
# 13 Re: iSkin tears/splits/rips around button holes
One more note--the 3rd photo does indeed look different. This is because the black lenscap's rounded edge couldn't reach up into the upper corner. So you have the scanner light reflecting up through the iSkin, hitting the white scanner cover and reflecting back down through the iSkin. This was very quck and dirty. It would be better to custom cut a rectangular piece of black mat board to place behind the window.

Knivesout-- Some of the button holes have extremely small nicks--smaller than what you see above.

iScientist
iScientist at 2007-11-15 15:56:00 >
# 14 Re: iSkin tears/splits/rips around button holes
Here's my iSkin (White Frost 30 GB): Notice the areas around the button holes and in the corner of the screen cutout.
knivesout at 2007-11-15 15:56:55 >
# 15 Re: iSkin tears/splits/rips around button holes
It sure looks like our iSkins came out of the same mold. I just checked a friend's new White Frost iSkin 30 gig and his looks almost perfect--much cleaner edges. If I can pry it out of his hands, I'll do some comparison images. I wonder if the edge discontinuities are characteristic of a certain mold, or if they constitute a certain percentage of the iSkins from each mold.

The question is whether these are cosmetic imperfections or whether the nicks will propagate and cause larger tears in the case. Does silicone posess "ripstop" properties?

The silicone Lajo uses is a beautiful material--supple, but strong. I'm wearing my iPod on my belt all the time and the silicone is not picking up cuts and scratches so far. It also shows some great memory properties--retaining its shape very precisely after stretching. I'll be interested in seeing how it holds up to daily use.

iScientist
iScientist at 2007-11-15 15:57:58 >
# 16 Re: iSkin tears/splits/rips around button holes
The inside edge of an eXo is where the excess silicone sits once out of the mold. The girls then remove these pieces by turning the case inside out. Most of it will come off with a pull but there are parts that hold and the girls have a tool like a pair of tweezers that they can insert in-between the case and the excess silicone and separate it. If necessary they use cuticle succors to remove what is left. There are about 4 to 7 girls working on this everyday. These section removed by hand will not affect the strength of the case. Then the eXo cases go to another group of girls for cleaning and final check then they are package and ready to be sold.

As I mentioned before this silicone from Japan is incredible, if I did not ad a little mix to it the girls would not be able to remove the excess silicone, it will just stretch. I hope soon we will be able to produce a mold that solves the excess silicone problem and then I will use this Japanese silicone is it purest form. When that happens the cases will be stronger and extremely soft that is my goal.

I am working on a new design for the 2nd gen ipod 10gb, the design is such that I may be able to use the Japanese silicone pure, if so this will be the best case yet. I am adding a new feature that will put it one notch above eXo. It is a very complicated mold and it will be very difficult to produce but I feel now after 25,000 plus eXos the factory has the ability to make this new design.
Lajo at 2007-11-15 15:59:02 >
# 17 Re: iSkin tears/splits/rips around button holes
Ok, that explains a lot. It looks like our cases had excess silicone that was torn and trimmed away leaving a slightly irregular edge. I think sometimes the tearing may leave nicks in the edges because the silicone is so strong it doesn't separate easily.

Lajo- can you tell us what the new feature is? I'm curious. Thanks.

iScientist
iScientist at 2007-11-15 15:59:59 >
# 18 Re: iSkin tears/splits/rips around button holes
Because this is a very competitive market I have to hold on the news for a while. Once I have the case being tested it will safe to release the design because the competition will need about 2 months to catch up and by then I am very close to the next new release. Example the belt clip attachment was always a cannot do situation with the factories here in China, well the moment I hear that I know that if I can do it, I will have a major advantage over the other soft cases. So I am always working on what cannot be done and every time my staff are frustrated because the factory can not manufacture our design I tell them we will persist because I know the rewards will follow. EXo has made some major changes in the way soft case can be designed and I am sure that others will try to follow in that direction if they want to have some of eXo share of the market. I am an ideas person and I have only touch the tip of the pile of ideas that I want to get out there.

The new design is almost ready to release.

By the way I have a lot of respect for your detail look at eXo and looking at what might be a problem, I wish I had someone here that took that interest to examine the products and as a result of your photos I will be investing in some computer microscopes to look at things a little closer. Thanks again.
Lajo at 2007-11-15 16:01:03 >
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