Brake Caliper Pin Grease ?

For Sale a tube of Silicone Brake Caliper Grease and Dielectric Compound XG-3-A I used to use copper grease, but found this hardens over time and is really not compatible with the rubber sleeves the Caliper Pins slide in. I also tried High Temperature Silicone Grease, but found this too was not very good. Purchased two in error Not available in UK. Can also be used to coat/protect electrical connections See here for further details http://www.fcsdchemicalsandlubricants.com/main/product.asp?product=Silicone%20Brake%20Caliper%20Grease%20and%20Dielectric%20Compound&category=Greases 15 including carriage NO OFFERS