ben robertson Posted April 29, 2018 Share Posted April 29, 2018 Hi folks, the adventure continues, in the cleaning process I have fond a number of fixtures that have lenses become loose of the fittings, there is a greasy residue on the edge of the lenses. what is the best adhesive / silicon ( heat tolerant? to what temp ) to use to hold these in place, I assume being optics these really need to be bang on when being re-seated. all help advice appreciated Link to comment Share on other sites More sharing options...
timsabre Posted April 29, 2018 Share Posted April 29, 2018 Normal bathroom sealant will be ok, clean with methylated spirit beforehand(ensure it's really silicone and not the cheaper acrylic ones) Link to comment Share on other sites More sharing options...
Don Allen Posted April 29, 2018 Share Posted April 29, 2018 Should it be a neutral cure silicon ? Link to comment Share on other sites More sharing options...
timsabre Posted April 29, 2018 Share Posted April 29, 2018 Don't think it really matters. I've always just used standard bathroom stuff for fixing lenses and dichroic filters that have fallen off. Link to comment Share on other sites More sharing options...
gyro_gearloose Posted April 29, 2018 Share Posted April 29, 2018 I think that neutral cure silicone should be the best one to use. It can take longer to cure, but it does have better adhesive properties than acetoxy silicone. Link to comment Share on other sites More sharing options...
sunray Posted April 29, 2018 Share Posted April 29, 2018 I think that neutral cure silicone should be the best one to use. It can take longer to cure, but it does have better adhesive properties than acetoxy silicone. Also it is acidic and will affect ali, copper and steel, so neutral cure is better. Link to comment Share on other sites More sharing options...
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