<t>I think it`s because of the heat. These silicon sheets was popping like popcorn in microvawe oven on my ST-3042. Reduced the heat and problem solved. So it seems like those silicon sheets has some heat limits. They were popping around 190C and 200C, now i'm using 160C-170C and that vacuum gage is ...

<r>You can try to contact this seller for some spare parts <URL url="www.bestsublimation24.eu"><s>[url]</s>www.bestsublimation24.eu<e>[/url]</e></URL> <br/>
I'm not sure if they sell something like that, but you can ask. Got my ST3042 from them, works just fine.<br/>
Not a U.K. supplier but maybe ...