Adhesive misbehaving, worried joints are not airtight?

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Harley
Posts: 5758
Joined: Mon May 08, 2006 2:45 pm
Location: Christchurch, New Zealand - Authorised BFM Cab Builder

Re: Adhesive misbehaving, worried joints are not airtight?

#16 Post by Harley »

AlessandroAU wrote:I didn't like how little time the sika took to grab and how quickly it expanded,
Yep, you have to be well organised with SIKA 30 minute cure. Sika also have a "2 Hour cure" version which I have used with great success. Good luck with Selley's - hope it works for you better than my lot did.
Last edited by Harley on Sat Feb 02, 2013 3:48 am, edited 1 time in total.
ImageSemi-retired: Former Australia and New Zealand Authorised BFM cab builder.

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bitSmasher
Posts: 628
Joined: Fri May 30, 2008 2:55 am
Location: Sydney, Aus.

Re: Adhesive misbehaving, worried joints are not airtight?

#17 Post by bitSmasher »

Grant Bunter wrote:I mentioned earlier that PL premium is available in Australia...
It's even in a sticky in Tips techniques etc

And they only want $5.50/tube (but minimum order is box/12 + $20 something postage which is fine if you have plenty of builds in mind.)
Emailed to me today, when I enquired about a box...
Code – LOC-PL295

Product Description – Loctite ™ PL Premium PU 300ml

Cost – $12.05 per tube

M.O.Q – 12 tubes

Delivery Charge – $26 +GST
At $5.50 a tube ex GST, it worked out to a bit over $8 a tube. Not a bargain compared to Selleys... but at least it's the "right stuff"
But for this much, plus shipping... :broke:

Grant Bunter
Posts: 6912
Joined: Mon Nov 28, 2011 11:12 am
Location: Ilfracombe Queensland Australia
Contact:

Re: Adhesive misbehaving, worried joints are not airtight?

#18 Post by Grant Bunter »

bitSmasher wrote:
Grant Bunter wrote:I mentioned earlier that PL premium is available in Australia...
It's even in a sticky in Tips techniques etc

And they only want $5.50/tube (but minimum order is box/12 + $20 something postage which is fine if you have plenty of builds in mind.)
Emailed to me today, when I enquired about a box...
Code – LOC-PL295

Product Description – Loctite ™ PL Premium PU 300ml

Cost – $12.05 per tube

M.O.Q – 12 tubes

Delivery Charge – $26 +GST
At $5.50 a tube ex GST, it worked out to a bit over $8 a tube. Not a bargain compared to Selleys... but at least it's the "right stuff"
But for this much, plus shipping... :broke:
Have a crack at them Bitsmasher, that's (more than) doubled in price over the last 12 months! And we're at parity with the US$ so they can't use that excuse. My box cost me $110ish delivered.
Delivery charge has remained the same...
Built:
DR 250: x 2 melded array, 2x CD horn, March 2012 plans.
T39's: 4 x 20" KL3010LF , 2 x 28" 3012LF.
WH8: x 6 with melded array wired series/parallel.
Bunter's Audio and Lighting "like"s would be most appreciated...

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bitSmasher
Posts: 628
Joined: Fri May 30, 2008 2:55 am
Location: Sydney, Aus.

Re: Adhesive misbehaving, worried joints are not airtight?

#19 Post by bitSmasher »

Yeah, a bit crud. Will hassle them when I have the energy to be a nuisance consumer. For now, I have a Bunnings between my work and the bus stop home so convenience rules.

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Fenderfan
Posts: 58
Joined: Fri May 18, 2012 3:49 am
Location: Auckland, New Zealand

Re: Adhesive misbehaving, worried joints are not airtight?

#20 Post by Fenderfan »

Bit of a noob question, but......... Can someone explain the importance of a cab eg jack being airtight, when it essentially is ported cab?
Built:
2 x Jack 112
2512, one with melded array
To do list:
XF 212

Grant Bunter
Posts: 6912
Joined: Mon Nov 28, 2011 11:12 am
Location: Ilfracombe Queensland Australia
Contact:

Re: Adhesive misbehaving, worried joints are not airtight?

#21 Post by Grant Bunter »

I hope this is right.

Leaks mean more air "escapes".
Yes they are ported, but if the port area is affected, ie increased by cab leaks, then cab tuning changes (usually lower) which may be to the detriment of the drivers. I guess it would also change sensitivity.
Built:
DR 250: x 2 melded array, 2x CD horn, March 2012 plans.
T39's: 4 x 20" KL3010LF , 2 x 28" 3012LF.
WH8: x 6 with melded array wired series/parallel.
Bunter's Audio and Lighting "like"s would be most appreciated...

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Tom Smit
Posts: 7569
Joined: Sat Jan 05, 2008 1:24 pm
Location: Sarnia, Ont. Canada

Re: Adhesive misbehaving, worried joints are not airtight?

#22 Post by Tom Smit »

Fenderfan wrote:Bit of a noob question, but......... Can someone explain the importance of a cab eg jack being airtight, when it essentially is ported cab?
To add to Grant's post, last fall I went over my Omni 10.5s and sealed whatever potential leaks there were (they were built 4 years ago when I was just starting to learn about wood working). Since the sealing, I think the cabs sound tighter and deeper, at least, I want them to (trying to be subjective). But at least I know with surety, that everything is right with the cabs.
TomS

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Fenderfan
Posts: 58
Joined: Fri May 18, 2012 3:49 am
Location: Auckland, New Zealand

Re: Adhesive misbehaving, worried joints are not airtight?

#23 Post by Fenderfan »

Yep, got it, thanks. I made sure with my jacks that everything was good and tight, with ample squeeze out, but was just curious. Thanks, Tim.
Built:
2 x Jack 112
2512, one with melded array
To do list:
XF 212

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