Penta 3 Crossover board adhesive.

4 replies
ND
Offline
Nick Davison
Bronze
Posted September 27, 2025 at 18:36 GMT
#1645064
I'm in the middle of renovating my penta 3s.  On the crossover boards what adhesive (brand) is a good choice to secure the new caps and the replacement mid coil that was once once filled with the stuff?

Also, and I have asked this all over the place but not had a good answer yet unfortunately.  -  Is there a repair scheme to reinstate the reflective chrome effect paint on the acrylic base cover.  One of mine has pulled off the double sided tape, which has taken a good chunk of the mirror effect covering from it?

Cheers Guys.

 

Location: Lincolnshire UK

DI
Offline
Dillen
BronzeModeratorFounder
Posted September 28, 2025 at 11:46 GMT
#1671282
I use hot glue.
It's easy to work with and holds absolutely fine.

Martin
TR
Offline
treasurebo
Bronze
Posted October 16, 2025 at 16:25 GMT
#1671537
I did replace the caps on my Pentas a year ago. I also used hot glue. I put hot glue approx 5 mm wide and the length of the cap on the board. Let it cool quickly a couple of seconds then pressed the cap into it. It holds very firmly.

More work was to remove the old glue before that. I used a very sharp knive, my Swiss army knive, to gently (without too much pressure, avoid for all sake slipping to not cut yourself or other parts on the board) squeeze the blade between board and glue.
ND
Offline
Nick Davison
Bronze
Posted October 17, 2025 at 19:07 GMT
#1671553
Yep went out and bought a glue gun. Done two sets of crossovers with it and looks like it sticks well. I have to replace the L3 coils that have glue filling the void in the middle of them so will use the glue gun for the replacements.

I have 4 sets to do, amps, crossovers and displays. Just waiting for the pile of capacitors etc for the other 3.

Location: Lincolnshire UK

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