# Hazing in silicone layer

**URL:** <https://forum.formlabs.com/t/hazing-in-silicone-layer/908>\
**Category:** Projects & Prints\
**Created:** [February 19, 2014, 6:57pm UTC](https://forum.formlabs.com/t/hazing-in-silicone-layer/908 "2014-02-19T18:57:56Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![PeterStempel](https://avatars.discourse-cdn.com/v4/letter/p/74df32/32.png) [@PeterStempel](https://forum.formlabs.com/u/PeterStempel)\
**Post date:** [February 19, 2014, 6:57pm UTC](https://forum.formlabs.com/t/hazing-in-silicone-layer/908/1 "2014-02-19T18:57:56Z")

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I’ve run just under two liters of resin, and am very good with my scraper–no physical damage to the silicone layer. &nbsp;I’ve noticed that there is a haze developing in some areas of the silicone (when I displace resin using scraper I can see this), and it seems to impact the print. &nbsp;I’ve not seen this mentioned anywhere else, and I’m wondering if this has been observed by anyone–the surface is smooth, just a bit cloudy. &nbsp;Ordered aditional vats, and simply avoiding the spot for now. &nbsp;Think it was caused by a highly detailed print (texture) run parallel to the vat and platform. &nbsp;Anyone else have a similar experience?

P

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**Author:** ![MongerDesigns](https://avatars.discourse-cdn.com/v4/letter/m/a87d85/32.png) [@MongerDesigns](https://forum.formlabs.com/u/MongerDesigns)\
**Post date:** [February 19, 2014, 10:57pm UTC](https://forum.formlabs.com/t/hazing-in-silicone-layer/908/2 "2014-02-19T22:57:01Z")

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That is normal after you print in one place for too many times. Print in a different area and eventually you will need to replace the resin tank. Or you can try and replace the silicone layer yourself. The directions are floating around the forum somewhere.

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**Author:** ![KevinHolmes](https://avatars.discourse-cdn.com/v4/letter/k/3ec8ea/32.png) [@KevinHolmes](https://forum.formlabs.com/u/KevinHolmes)\
**Post date:** [February 20, 2014, 2:22am UTC](https://forum.formlabs.com/t/hazing-in-silicone-layer/908/3 "2014-02-20T02:22:23Z")

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also on the unofficial wiki here: [http://form1printer.pbworks.com/w/page/73582883/Replacement%20Components](http://form1printer.pbworks.com/w/page/73582883/Replacement%20Components)

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**Author:** ![PeterStempel](https://avatars.discourse-cdn.com/v4/letter/p/74df32/32.png) [@PeterStempel](https://forum.formlabs.com/u/PeterStempel)\
**Post date:** [February 20, 2014, 3:05am UTC](https://forum.formlabs.com/t/hazing-in-silicone-layer/908/4 "2014-02-20T03:05:46Z")

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Thanks for the link. &nbsp;I remember seeing the article. . . . . &nbsp;I guess it really snuck up on me. &nbsp; I’ve been moving my prints around and inspecting the vat bottom before each print–the hazing came on suddenly in my case. &nbsp;If the Silicone layer does deteriorate this quickly, I’ll be exchanging my own silicone. &nbsp;I’d be really curious to know how many prints people are running and what everyone else is experiencing with expendables–I’m going through about .5l/week on small parts.

Thanks,

p