pdbrown170b Posted January 2, 2013 Report Share Posted January 2, 2013 Hi. I am in the process of rebuilding my 1973 OLA speakers and have just refoamed the woofers. When I removed them from the cabinet, the speaker rim was sealed against the wood with a pliable mastic which felt like plumbers putty. After 40 years, it's still a bit soft. Can anyone please suggest the appropriate sealant ? Thanks Pete BrownAnchorage, AKGoing home after a long dayhttp://farm2.static.flickr.com/1415/1325102827_f322928754_b.jpg The fleet at Summit. Mt. McKinley is about 45nm away at 20,320 msl.http://farm1.static.flickr.com/187/437346531_a9cb8d2482_b.jpg Link to comment Share on other sites More sharing options...
Doug G. Posted January 2, 2013 Report Share Posted January 2, 2013 Hi Pete. Welcome to the Advent forum. I feel the best to use is Mortite brand rope caulk. It's totally non-greasy and seals real well.Doug Link to comment Share on other sites More sharing options...
JKent Posted January 2, 2013 Report Share Posted January 2, 2013 Welcome PeteThis works very well. I've used it on many woofers: I have not used Mortite myself but AFAIK that would also be a good choice.http://www.homedepot.com/buy/gardner-bender-duct-seal-compound-plugs-10-pack--ds-110.html#.UORTemcxMegKent Link to comment Share on other sites More sharing options...
pdbrown170b Posted January 2, 2013 Author Report Share Posted January 2, 2013 Thank you both. I am off to Home Depot for the caulk and the electronics store for some new capacitors. Pete Link to comment Share on other sites More sharing options...
JKent Posted January 3, 2013 Report Share Posted January 3, 2013 Be sure to look at Pete B's Advent page: http://baselaudiolab.com/ADVENT_LA_XO.htmlDon't know how well-stocked your local electronics store is. Best capacitors to use are film caps. If you use electrolytics they MUST be the non-polar type.Kent Link to comment Share on other sites More sharing options...
ra.ra Posted January 4, 2013 Report Share Posted January 4, 2013 Hi AK Pete, and welcome to CSP.Both of the recommended products will work just fine. All you have to do is warm up (soften) the material and roll some 'snakes' like you did in 1st grade with modeling clay. Then, just be sure you get a fully continuous seal, esp. around the screw holes.Too bad you do not have any decent scenery on your 'commute'. Link to comment Share on other sites More sharing options...
Doug G. Posted January 6, 2013 Report Share Posted January 6, 2013 Good point on the continuous seal, ra.ra. That is absolutely crucial. The cabinet must be completely air tight after assembly. The only air leakage is the small amount around the woofer voice coil and through the dust cap (which is cloth) which is controlled.The one advantage with Mortite is it's sold in wound ribbon form divided into round sections so all you have to do is peel off one round section and stick it down on the woofer flange. No rolling "snakes" necessary.Doug Link to comment Share on other sites More sharing options...
pdbrown170b Posted January 11, 2013 Author Report Share Posted January 11, 2013 Doug.. Thanks for the note on the Moretite and the seal. I sealed the up just before leaving on a trip and they sound great again. Now, I think I will be looking for new caps so I may need to get back inside again if I find the right replacements as they were not available locally. Link to comment Share on other sites More sharing options...
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