Deang Posted November 3, 2019 Share Posted November 3, 2019 Contacted by a customer with this picture. Wow. I have no idea what to think about this!? Solen film and tin foil. There is no fluid inside the capacitor. Quote Link to comment Share on other sites More sharing options...
glens Posted November 3, 2019 Share Posted November 3, 2019 Well, something's out that was in... 1 Quote Link to comment Share on other sites More sharing options...
erik2A3 Posted November 3, 2019 Share Posted November 3, 2019 Because of the fact that the occurrence of the viscous droplets is directly under the firm, 360 degree pressure and tension of the zip tie securing the cap to the board, I'm thinking the sap-like goo may be residual adhesive between the outer insulation and the inner cylinder that forms the body of the capacitor. I've seen the same gunk on heat-damaged Solens in amplifiers. Sticky, messy stuff! A wipe of acetone on paper towel should take care of it, and performance wise a non-issue. Just my half-cent's worth Dean 😉 1 Quote Link to comment Share on other sites More sharing options...
moray james Posted November 3, 2019 Share Posted November 3, 2019 it may be a sealant intended to stay viscous and used seal the cap from air and moisture entering which would damage the cap. Best check with Solen. 1 Quote Link to comment Share on other sites More sharing options...
kevinmi Posted November 3, 2019 Share Posted November 3, 2019 These are my crossovers, and here is a little more background info.The zip ties are not overly tight and not causing any squeezing of the caps. the crossovers have never been subject to more than one or two watts of power. Room temperature is a constant 74 degrees.The substance is gooey/sticky feeling, not solid. all 4 caps are experiencing this, on both ends. It doesn't affect the sound any. The only reason I even noticed this is because I swapped out the crossovers for another set I had for comparison. I'm not really concerned at this point, just curious. I plan on putting the crossovers back in without cleaning them up and see if the "oozing" gets worse. Quote Link to comment Share on other sites More sharing options...
Deang Posted November 3, 2019 Author Share Posted November 3, 2019 I think Erik and Moray are right. The ties are around the endcaps. It makes sense that it would be adhesive. Whats odd is that the adhesive should be epoxy - that, or it's excessive adhesive from the teflon tape that they wrap the capacitor in. Quote Link to comment Share on other sites More sharing options...
ricktate Posted November 3, 2019 Share Posted November 3, 2019 Clean one off take zip tie off and see if it still leaks later. Quote Link to comment Share on other sites More sharing options...
Marvel Posted November 3, 2019 Share Posted November 3, 2019 You probably wouldn't have even noticed if Dean's builds weren't so clean. Quote Link to comment Share on other sites More sharing options...
MechEngVic Posted November 4, 2019 Share Posted November 4, 2019 12 hours ago, kevinmi said: These are my crossovers, and here is a little more background info.The zip ties are not overly tight and not causing any squeezing of the caps. the crossovers have never been subject to more than one or two watts of power. Room temperature is a constant 74 degrees.The substance is gooey/sticky feeling, not solid. all 4 caps are experiencing this, on both ends. It doesn't affect the sound any. The only reason I even noticed this is because I swapped out the crossovers for another set I had for comparison. I'm not really concerned at this point, just curious. I plan on putting the crossovers back in without cleaning them up and see if the "oozing" gets worse. If it's happening to all 4 caps, and they are all the same brand and model, then I think it's an issue specific to the cap and not the crossover. 1 Quote Link to comment Share on other sites More sharing options...
moray james Posted November 4, 2019 Share Posted November 4, 2019 the problem is I should think specific to the caps. Contact the company directly. 1 1 Quote Link to comment Share on other sites More sharing options...
glens Posted November 4, 2019 Share Posted November 4, 2019 Production lot issues, most definitely. I doubt the function is impaired. Quote Link to comment Share on other sites More sharing options...
Bubo Posted November 7, 2019 Share Posted November 7, 2019 On 11/4/2019 at 1:47 AM, glens said: Production lot issues, most definitely. I doubt the function is impaired. This and yes contact the mfg..... Quote Link to comment Share on other sites More sharing options...
kevinmi Posted November 8, 2019 Share Posted November 8, 2019 Crossovers are back in play with no adverse effects, sound wonderful! Quote Link to comment Share on other sites More sharing options...
Deang Posted November 8, 2019 Author Share Posted November 8, 2019 You could send that picture to Solen. It would be interesting to see what they say. Btw, Solen sells those to Mundorf, who rebrands them. Quote Link to comment Share on other sites More sharing options...
kevinmi Posted November 8, 2019 Share Posted November 8, 2019 3 minutes ago, Deang said: You could send that picture to Solen. It would be interesting to see what they say. Btw, Solen sells those to Mundorf, who rebrands them. Interesting about the rebranding. I had heard of rebranding taking place, but never any specifics. I might send the pics to Solens just to see what they say. Quote Link to comment Share on other sites More sharing options...
glens Posted November 8, 2019 Share Posted November 8, 2019 I'm thinking it's about like trying to open a box of cereal where the mechanism which applies the glue to the flap got a little carried away with its task is all we're seeing here, with the contents otherwise unaffected. Just my guess... Quote Link to comment Share on other sites More sharing options...
kevinmi Posted November 9, 2019 Share Posted November 9, 2019 I contacted Solen and sent the pictures. They said they hadn't seen this before. They thought that it could happen in a high heat situation, but noted that the outer film casing would be distorted as well, which it isn't. They think more than likely it is the adhesive from the outer wrap. They would like me to send at least one back so they can study it. They have also agreed to replace all of them with no charge. Now I have to decide whether to remove them and send them back or just leave them alone. What would you guys do? Quote Link to comment Share on other sites More sharing options...
Deang Posted November 9, 2019 Author Share Posted November 9, 2019 I think it's a lot of trouble to confirm what we all now know already - it's excess adhesive. Tell them you'll trade for the teflons. Quote Link to comment Share on other sites More sharing options...
kevinmi Posted November 9, 2019 Share Posted November 9, 2019 1 hour ago, Deang said: I think it's a lot of trouble to confirm what we all now know already - it's excess adhesive. Tell them you'll trade for the teflons. I told them I'd let them know after thinking about it over the weekend. We'll see if they offer an upgrade! Quote Link to comment Share on other sites More sharing options...
Edgar Posted November 9, 2019 Share Posted November 9, 2019 If Solen has a quality control problem that they don't know about, then you'll be doing them and all of their customers a favor by sending the caps back for failure analysis. 2 Quote Link to comment Share on other sites More sharing options...
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