<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div></div><div>Brian,</div><div>I think it's something they mix with the silicone to lower the viscosity for</div><div>spraying. Could have something to do with the propellant also.</div><div>I ended up buying from a specialty chemical importer & bought a 5 cst </div><div>Pure silicone that has worked well so far.</div><div>Alan</div><div><br></div><div><br>On 27/03/2019, at 9:52 AM, Brian Cox via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<br><br></div><blockquote type="cite"><div><div style="font-family:Arial, sans-serif; font-size:10pt;"><font size="2" style="font-family: Arial, sans-serif;">Hi All,</font><div style=""><font size="2" style=""><font face="Arial, sans-serif"> I decided to try wd-40's new " silicon" spray , it started melting my O rings. Basically I noticed black coming off the O ring into the lubricant. I have since gone back to another silicone spray which is an automobile product. Does anyone have a preferred silicone product ? I think my O rings are Buna </font></font></div><div style=""><font size="2" style=""><font face="Arial, sans-serif"><br></font></font></div><div style=""><font size="2" style=""><font face="Arial, sans-serif"><br></font></font></div><div style=""><font size="2" style=""><font face="Arial, sans-serif">Brian</font></font></div></div>
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