I have come to a stand still. I am so scared to pic the wrong adhesives and sealers for my sonotube subs because the end caps were custom and cost a lot of money.
I will list what i need to seal and the challenges and finally some things i considered.
1. Top end cap to 8" port
Challenge A. - The port overlaps a hole in the top of the endcap but the port is not perfect so it does not meet the endcap flush in all places IE there might be some gaps.
Challenge b. - The port is metal and the endcaps have a high gloss automotive cleat gloss paint job on them.
My thoughts were use liquid nails mirror adhesive then seal the inside with spray foam - I am a bit scared of the mirror advesive because of possible VOC content and the fact that is says allow one week before sealing in when used on mirrors. Would Expoxy be safer? Also I have never seen anyone use spray foam as a sealant and wondered why?
2.Bottom and top end caps to the sonotunes
Challenge A. - The custom end caps are maybe under a quarter inch small or less but luckily the outside lip more than covers the difference
The challenge is that once I center it the sides of the endcaps that were meant to attach to the sides of the tube will have small gaps that I could use ahdesive on BUT the primary or initial hold will have to be applied the the underside of the outside lip.
Is there an adhesive I could use that would safely fill this small gap rather than relying on this cumbersome 2 step solution?
3. Sonotube being used as a port (8") to the metal port
Again there is not a perfect fit so while there is one small point of true contact the rest has slight gaps to be filled, it also has to be strong enough for metal and being used in a vibrating port (although 15hz tune wont vibrate that often ha)
I will list what i need to seal and the challenges and finally some things i considered.
1. Top end cap to 8" port
Challenge A. - The port overlaps a hole in the top of the endcap but the port is not perfect so it does not meet the endcap flush in all places IE there might be some gaps.
Challenge b. - The port is metal and the endcaps have a high gloss automotive cleat gloss paint job on them.
My thoughts were use liquid nails mirror adhesive then seal the inside with spray foam - I am a bit scared of the mirror advesive because of possible VOC content and the fact that is says allow one week before sealing in when used on mirrors. Would Expoxy be safer? Also I have never seen anyone use spray foam as a sealant and wondered why?
2.Bottom and top end caps to the sonotunes
Challenge A. - The custom end caps are maybe under a quarter inch small or less but luckily the outside lip more than covers the difference
The challenge is that once I center it the sides of the endcaps that were meant to attach to the sides of the tube will have small gaps that I could use ahdesive on BUT the primary or initial hold will have to be applied the the underside of the outside lip.
Is there an adhesive I could use that would safely fill this small gap rather than relying on this cumbersome 2 step solution?
3. Sonotube being used as a port (8") to the metal port
Again there is not a perfect fit so while there is one small point of true contact the rest has slight gaps to be filled, it also has to be strong enough for metal and being used in a vibrating port (although 15hz tune wont vibrate that often ha)
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