kelvinAI've stumbled on this listing that has much more useful information.
- The double edged news is that 10mm and 16mm have the same sound blocking of 20dB.
- That's great because 10mm is cheaper, but unfortunate that 16mm doesn't get any better.
- I still wonder if something like 2 10mm panels will have an even greater effect. Looking at how 35mm only increases the soundproofing by 2dB, perhaps 6 or 8mm could be an option as the sound blocking seems to be around the 20dB area.
- It sounds like it's got a good fire rating.
[E[number] = Edit added]
Edit 1
I've found this printer that uses multi-wall polycarb for the enclosure while just searching around on Hackaday. Most enclosures I found for CNC's were made from MDF and I believe most 3D printer enclosures are acrylic, so it's nice to see what this materal looks like when enclosing a printer.
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Does the 10mm and 16mm have the same amount of internal walling? Thickness of the trapped gas area should improve things, but the number of internal walls will also have a big impact, if I understand things correctly. So if 10mm and 16mm have the same internal structure, I'm not surprised it doesn't improve much. But 2 layers of 10mm will have double the walling, it should be much better. Ideally you want a gap between the two 10mm panels to make optimal use of the inner layer.
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10mm is twin-wall and 16mm is triple-wall. If I use the dual panel approach, the air gap would be approx 22mm (42.4mm - 10mm - 10mm). There's also 25mm that looks to have 5 walls.
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Oh interesting. 16mm AND triple wall and still no change in the listed specs? That makes no sense to me, I wonder if it's a typo/copy-paste error or there's something we're missing...
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I've found
- https://plaskolite.com/docs/default-source/tuffak-assets/technical-documents/noise-reduction-msc122.pdf
and even with solid 6mm polycarb and a 30mm air gap, noise is only further reduced by 4dB
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4db can be quite significant, given it's a logarithmic scale. Though that does feel like a pretty small increase for the material.
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