Thanks Richard, I have checked their site and they do list high temperature adhesives. I have also searched UK suppliers and have found Intertronics.co.uk who also do high temperature adhesives for fibre optics etc.. I must check the mirror temperature with an infra-red thermometer to see how hot it actually gets. Thanks for pointing me down a suitable path Regards John On 12/12/2008 10:15, "Richard Knoppow" <dickburk@xxxxxxxxxxxxx> wrote: > Summers Optical --- Rollei List - Post to rollei_list@xxxxxxxxxxxxx - Subscribe at rollei_list-request@xxxxxxxxxxxxx with 'subscribe' in the subject field OR by logging into www.freelists.org - Unsubscribe at rollei_list-request@xxxxxxxxxxxxx with 'unsubscribe' in the subject field OR by logging into www.freelists.org - Online, searchable archives are available at //www.freelists.org/archives/rollei_list