# Surgical Guide Warping During Autoclave Run **URL:** \ **Category:** Form 2\ **Created:** [August 28, 2020, 8:06pm UTC](https://forum.formlabs.com/t/surgical-guide-warping-during-autoclave-run/28639 "2020-08-28T20:06:59Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![play150](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.formlabs.com/play150/32/15746_2.png) [@play150](https://forum.formlabs.com/u/play150)\ **Post date:** [August 28, 2020, 8:06pm UTC](https://forum.formlabs.com/t/surgical-guide-warping-during-autoclave-run/28639/1 "2020-08-28T20:06:59Z")
Hi everyone, When I print, wash and cure with Surgical Guide everything is fine. However, after autoclaving my parts warp and are no longer flat. I’m already doing a reduced 10 mins at 121C + 20 mins drying at the recommendation of FormLabs Support. Should I just not autoclave and do the 5 mins of 70% IPA? I’m worried that it’ll affect biocompatibility if I don’t autoclave since it makes Surgical Guide change color, which makes me think that there’s some reaction that is left incomplete until higher temps are reached. My part is ~ 2 mm thick, with a 33.75 mm diameter :s ![Screenshot%20(60)](https://us1.discourse-cdn.com/flex025/uploads/formlabs/original/3X/a/0/a011aa5287afe641c445cab251c3508208824c65.png) [0.4mm posts four 10 by 2 mm wells for 6 well plate - FOR EPPENDORF NONTREATED 6 WELL.STL](https://us1.discourse-cdn.com/flex025/uploads/formlabs/original/3X/4/5/45ff7f30458246f0f5c3dd28d30ec029616965c6.STL) (96.9 KB) ---
**Author:** ![play150](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.formlabs.com/play150/32/15746_2.png) [@play150](https://forum.formlabs.com/u/play150)\ **Post date:** [August 29, 2020, 4:39pm UTC](https://forum.formlabs.com/t/surgical-guide-warping-during-autoclave-run/28639/2 "2020-08-29T16:39:28Z")
Also, has anyone tried sterilizing with 70% ethanol instead of IPA?