Jump to content

Plywood for Speaker Cabinets


Recommended Posts

Just recently, the company I’m associated with, received a new plywood product. 
This is a Marine grade Hardwood plywood with a Density around 830kg per m3!!!

Laminex mdf is around 700=750kg according to their website..

This plywood is dark red/brown extremely consistent in colour face and core, and has no voids/ core gaps. 
This may seem like an advert, but try finding a product like this yourself........ it also has me motivated to try to build a laminated 2 way bookshelf cut on the Cnc machine. 
As it’s around $90 for a sheet of 18mm, so it’s pretty affordable....

  • Like 4
Link to post
Share on other sites
31 minutes ago, Mr Speedy said:

Just recently, the company I’m associated with, received a new plywood product. 
This is a Marine grade Hardwood plywood with a Density around 830kg per m3!!!

Laminex mdf is around 700=750kg according to their website..

This plywood is dark red/brown extremely consistent in colour face and core, and has no voids/ core gaps. 
This may seem like an advert, but try finding a product like this yourself........ it also has me motivated to try to build a laminated 2 way bookshelf cut on the Cnc machine. 
As it’s around $90 for a sheet of 18mm, so it’s pretty affordable....

 

Great news!  I guarantee that your spkr will sound much better built from this ply than it would if it was built using mdf!  :thumb:

 

Andy

 

  • Like 1
Link to post
Share on other sites
1 hour ago, Mr Speedy said:

Just recently, the company I’m associated with, received a new plywood product. 
This is a Marine grade Hardwood plywood with a Density around 830kg per m3!!!

Laminex mdf is around 700=750kg according to their website..

This plywood is dark red/brown extremely consistent in colour face and core, and has no voids/ core gaps. 
This may seem like an advert, but try finding a product like this yourself........ it also has me motivated to try to build a laminated 2 way bookshelf cut on the Cnc machine. 
As it’s around $90 for a sheet of 18mm, so it’s pretty affordable....

Colour me interested, does it have a trade name?

Link to post
Share on other sites
2 hours ago, Mr Speedy said:

Just recently, the company I’m associated with, received a new plywood product. 
This is a Marine grade Hardwood plywood with a Density around 830kg per m3!!!

Laminex mdf is around 700=750kg according to their website..

This plywood is dark red/brown extremely consistent in colour face and core, and has no voids/ core gaps. 
This may seem like an advert, but try finding a product like this yourself........ it also has me motivated to try to build a laminated 2 way bookshelf cut on the Cnc machine. 
As it’s around $90 for a sheet of 18mm, so it’s pretty affordable....

 

"Colour me interested, does it have a trade name?"

 

Seconded.

  • Like 1
Link to post
Share on other sites


It wouldn't be Marine Plywood Australia by chance? (Been flogged on Facebook something fierce) I'll hopefully be getting some of the 18mm shortly for a wall we're building.

 

@Mr Speedy is it a zero emissions board? where's it made?

  • Like 1
Link to post
Share on other sites
4 hours ago, Mr Speedy said:

Just recently, the company I’m associated with, received a new plywood product. 
This is a Marine grade Hardwood plywood with a Density around 830kg per m3!!!

Laminex mdf is around 700=750kg according to their website..

This plywood is dark red/brown extremely consistent in colour face and core, and has no voids/ core gaps. 
This may seem like an advert, but try finding a product like this yourself........ it also has me motivated to try to build a laminated 2 way bookshelf cut on the Cnc machine. 
As it’s around $90 for a sheet of 18mm, so it’s pretty affordable....

Colour me interested, does it have a trade name?

Link to post
Share on other sites

So the species is Kapur.... it’s a type of Camphor  ( as in Camphor Laurel), it has a nice fragrance!

it comes out of S E Asia.. 

As far as I know we are the only Aust company dealing with this mill.

We are nothing to do with the company Marine Plywood Australia,( whoever they are.....) and we don’t have to market aggressively!

I will get photos tomorrow, if I remember!

Oh, and another good thing about this product is that it is amazingly flat!,

cheap plywood’s have a habit of twisting......

  • Like 1
Link to post
Share on other sites


55 minutes ago, mwhouston said:

Colour me interested, does it have a trade name?

Hi mate r u still selling the Altec horns and drivers if you do please contact me on 0411085929 thanks 

Link to post
Share on other sites
6 hours ago, Mr Speedy said:

So the species is Kapur.... it’s a type of Camphor  ( as in Camphor Laurel), it has a nice fragrance!

it comes out of S E Asia..

Wikipedia says:

"Kapur is logged from old-growth forest, often illegally. These forests have developed over the course of hundreds of years. When harvested, these trees are often between 250 and 1000 years old. For a tree from the family Dipterocarpaceae, it takes approximately 100 years to reach a height of 30 meters. Most of the species that are sold as Kapur, are listed on the IUCN Red List for endangered species. For example, D. fusca is critically endangered."

 

Is yours ethically harvested and certified?

  • Like 3
  • Thanks 1
Link to post
Share on other sites

Sooooo, the answers to the Environmental questions!

We are not in the Plywood game to Launder endangered timber species and get caught and end up in the Big House sharing a Cell with a BIG HAIRY FRIEND!

Prior to COVID Our purchasing Manager made frequent trips to our chosen Timber mills in Malaysia and Papua New Guinea to guarantee to Quality and Legitimacy of our products. 
Our purchasing Manager has managed Timber Mills in Malaysia and India and is Very aware of meeting our Legal Obligations..

This product is assembled in Malaysia and has all the Malaysian Government Certification that is required. 

  • Like 1
Link to post
Share on other sites


To answer another question..

This is an EO product. Zero Emissions. The Emissions that we worry about it Formaldehyde.. it is a used as a Preservative in some products. 
One of the reasons for this is because the glue used tends to go off, over time. 
This product is built to Marine Standards.... BS1088, British Marine Standard. 
The glue used is a Phenolic Resin ( Water proof glue) that doesn’t go off and doesn’t require preservatives!!!

 

  • Like 1
Link to post
Share on other sites

This is a Marine Grade Product!  Admittedly BS 1088..

I’m told that some companies that claim to be Marine Plywood Specialist in Qld are selling BC WBP as Marine.

WBP. Is water boiling point.   It is a test on the quality of the glue. Marine Ply must meet this Standard. 
B face, C  back. 
Marine must be at least B+ front and back. 
The main difference is the quality of the core.

The Marine core must be devoid of gaps. It’s the quality that you pay for.

Link to post
Share on other sites

If you understand Plywood, then you will know that you are looking at something special!
Our company is based in Loganhome , south of Brisbane.

International Panels. 

 

 

Link to post
Share on other sites


Yes, personally I think it would talk staining very well... usually we find a product that would make a reasonable speaker cabinet, but it needs a lot of finishing... veneering or similar.....

Link to post
Share on other sites
On 21/10/2020 at 4:41 PM, Mr Speedy said:

Just recently, the company I’m associated with, received a new plywood product. 
This is a Marine grade Hardwood plywood with a Density around 830kg per m3!!!

Laminex mdf is around 700=750kg according to their website..

This plywood is dark red/brown extremely consistent in colour face and core, and has no voids/ core gaps. 
This may seem like an advert, but try finding a product like this yourself........ it also has me motivated to try to build a laminated 2 way bookshelf cut on the Cnc machine. 
As it’s around $90 for a sheet of 18mm, so it’s pretty affordable....

Sounds perfect. Just when I finish a build with 4+ sheets of 24mm AA birch ply...

Link to post
Share on other sites
2 hours ago, Mr Speedy said:

Interstate shipping is possible!

 

G'day Speedy.

 

Do you have an estimate for shipping to Capital cities?  Canberra for me.

Link to post
Share on other sites

Shipping prices will vary tremendously.... a small pair of bookshelves flat packed going to a Capital city could be quite reasonable!

our sister company turns plywood off cuts into Bird Boxes and ships them all over Australia.. 

A large pair of Floorstanders would have to go on a pallet and of course would cost more.....

  • Like 1
Link to post
Share on other sites

 

14 hours ago, Mr Speedy said:

The main difference is the quality of the core.

The Marine core must be devoid of gaps. It’s the quality that you pay for.

 

Hi John just checking the cores of these sheets of Kapur marine plywood are totally voidless?  There appears to be some small voids visible in the layers of cores in the photo where the stack is inscribed "18 KAPUR"?  These gaps appear as small gaps or inconsistencies in the edges of the separate pieces butted edge to edge to form each core when laid up in assembly process just prior to being pressed.

 

Some years ago, I commissioned a stack of Australian made 29m custom pressed marine plywood (manufactured using plantation grown Hoop Pine). This was for a speaker project that never came to fruition some of which I subsequently had sawn into an assortment of equipment shelves and some were sold off over the years.  

29mm Plywood.2.jpg

18 KAPUR.jpeg

Link to post
Share on other sites

Thanks Aperalim!

The plywood game has its challenges!

We also sell Marine Hoop pine, made in Brisbane, surprisingly!

Hoop pine has a density around 560 kg per cubic metre compared to Kapur at around 830!

 

Also while the Hoop is a beautiful product it is around twice the price!

Sadly over the years, because we live in a price driven world, even the Bris made Hoop isn’t as good as it was 20 years ago..... 

 

Hoop is a soft wood, whereas Kapur is a hard wood, which have quite different molecular structure, so we must expect the lay up to look differently. The problem with voids is that they go into the sheet and over time in a wet environment will eventually rot from the inside out!

the spots that you see on the edge of the Kapur sheets don’t go into the sheet..

 

Also nice to see the Full range driver on your photo.... I’d like to have a go at that one day!!

Link to post
Share on other sites

That's a very nice looking product! I'm glad to have a choice over the Bunnings rubbish so I'll grab a few sheets soon for my subwoofer builds.

Link to post
Share on other sites

I would like some of this for my Troels The Loudspeaker 2 build.  If able to cnc cut the panels into a flatpack and freight to WA, that would next level!

  • Like 1
Link to post
Share on other sites

Good morning gents!

yes sadly Bunnings does sell rubbish... I hear it from customers all the time,!!  It’s like many industries... the smaller specialist shops carry good stuff and the large chain stores have endless cheap gear that they can get a high mark up from!

if you are interested in getting your plywood Cnc machined into shape , Andrew would be the best person to talk to. 07 38751826

 International Panels Australia, Loganholme, Qld

Link to post
Share on other sites

The hardwood marine ply Bunnings sells is pretty decent. As is their A and B facing stuff from AraucoPly (but they dont sell nor stock full sheets of that)

 

If you want perfect edges, Austral's multiply is the go.....at a price....

 

I like the look of the stuff Mr Speedy is selling.....wish it was local. I don't have room to store a pallet of it here

Link to post
Share on other sites

Thanks Peter!!

Strangley, we also sell both the Austral ( Made in Brisbane Aust) and the Auraco ( We import Auraco) ply that you mentioned!... 

Auraco has quality faces, but being a softwood can twist a little in the thinner sizes.. although I find the 25mm to be quite stable. 
 

When we import plywood, the mill is very important.

Many mills in China have quality control  issues.... usually to do with the quality of their glue, which can lead to sheets delaminating....  
We import less than 5% of our products from  China, only dealing with mills that have a proven track record. 
Also we can ship just a single sheet of ply if necessary.....

Link to post
Share on other sites
  • 4 weeks later...

No pressure,

but I’ve just been talking to the purchasing manager who tells me that at the moment we can’t get anymore Kapur plywood because the mill has run out of its LEGITIMATELY sourced logs.

There is about 30 sheets left of 18mm, about 90 sheets of 15mm and around 400 sheets of 12mm.

Shame because it’s a popular product....

Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Recently Browsing   0 members

    No registered users viewing this page.




×
×
  • Create New...