How would I repair a puncture in a sub surround?
Replies (4)
swez on 01/10/2008 05:52:43
If the surround is made of butyl rubber, it can repaired with silicone (RTV) based adhesive/sealer.
1. A small dab of RTV, (1/4-3/8" dot) on the under side of the surround is all that is needed.
2. Smooth out the RTV with your finger to cover the damaged area and overlap the tear a little as well
3. Using a hair drier, (Meduim heat) will help speed up the skin curing time, but give it 24 hours before using the sub after the repair
If this is a foam-based surround, use water-based silicone for the repair. Same technique as mentioned above. RTV based silicone can actually damage a foam surround as it can eat away at the foam as it cures.
FYI: Always pre-drill/pilot mounting holes for sub screws and never use flat blade heads. (Phillips or Torx head screws rarely slip the "bit" and result in such damage) Use a tight fitting bit that is new and fits snugly to the screws used.
Also, dipping the the screw point in liquid soap, (Lubricant) helps the screw to go in smoothly. After the soap dries, it also acts like a sealer as well as a lubricant.
Swez
kcdakrt on 01/10/2008 20:46:26
Whats the type r?
swez on 01/10/2008 21:28:32
The new ones use a Santoprene polymer surround. (Synthetic rubberized plastic)
Use RTV sealer/adhesive here. (It even comes in black. How's that sound to you?
Swez
cplkittle on 01/10/2008 22:09:01
How bad is the puncture?
If it is just a small hole, and the sub is in a ported box which presents very little back pressure on the sub, it is better to leave it alone. It will not affect the sound.
If the sub is in a sealed box where there is alot of pressure on the back of the sub, or if the tear is fairly large it will need to be fixed.
Replies (4)
swez on 01/10/2008 05:52:43
If the surround is made of butyl rubber, it can repaired with silicone (RTV) based adhesive/sealer.
1. A small dab of RTV, (1/4-3/8" dot) on the under side of the surround is all that is needed.
2. Smooth out the RTV with your finger to cover the damaged area and overlap the tear a little as well
3. Using a hair drier, (Meduim heat) will help speed up the skin curing time, but give it 24 hours before using the sub after the repair
If this is a foam-based surround, use water-based silicone for the repair. Same technique as mentioned above. RTV based silicone can actually damage a foam surround as it can eat away at the foam as it cures.
FYI: Always pre-drill/pilot mounting holes for sub screws and never use flat blade heads. (Phillips or Torx head screws rarely slip the "bit" and result in such damage) Use a tight fitting bit that is new and fits snugly to the screws used.
Also, dipping the the screw point in liquid soap, (Lubricant) helps the screw to go in smoothly. After the soap dries, it also acts like a sealer as well as a lubricant.
Swez
kcdakrt on 01/10/2008 20:46:26
Whats the type r?
swez on 01/10/2008 21:28:32
The new ones use a Santoprene polymer surround. (Synthetic rubberized plastic)
Use RTV sealer/adhesive here. (It even comes in black. How's that sound to you?
Swez
cplkittle on 01/10/2008 22:09:01
How bad is the puncture?
If it is just a small hole, and the sub is in a ported box which presents very little back pressure on the sub, it is better to leave it alone. It will not affect the sound.
If the sub is in a sealed box where there is alot of pressure on the back of the sub, or if the tear is fairly large it will need to be fixed.
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