Thats magic stuff Java... Where can we get it from?
Thats magic stuff Java... Where can we get it from?
No idea Mal. Its been known now for well over 20 years and still has no public market that I can find. I suspect the military/government has taken it over and made it their own. Its far too handy and desirable a material not to have been marketed.
Java "Inquiring minds want to know!" phile
This article explains very well the story of starlite.
heres a interesting fact about its insulation properties
Starlite has a Q-value [an energy absorption rating] of 2,470. The space shuttle tiles have a Q-value of 1. Not only that, but because Starlite is so lightweight – 1mm thick, compared to 75mm for the space tiles – its actually 2,470 x 75 times better.
A month or so of noise over it 2 years ago and then once again silence. I can think of so many uses just around the home for this its crazy. Talk about a revolution in insulating.
Java "Wow!" phile
I have some of the sund deading stuff thats been touted around this site.
I have had a look at it and it looks like a sheet of aliminium foil with a thick bitumen backing.
The bitumen stuff stinks to high heaven when you have close mell of it.
I am just worried that the high tempertures on the machine might make it realise a terrible smell in the kitchen. My wife is pregnant at the moment, so I dont want to risk it.
Has anyone had an experince of a bad smell coming from the machine after installing the sound deadening material?
No mate, not the slightest whiff... ;)Originally Posted by 7A4B4B575E3B0 link=1258726137/55#55 date=1309400781
If you take up on the partner topic of this thread, insulating your boiler will reduce the internal air temperature significantly and reduce the possibility (if it really exists) even further... 8-)
The sound deadening material I used had no smell cold and no smell hot.
Sorry for opening an old post
Im thinking about using dynamat on the inside of the shell of my machine like lots of cs but from reading the thread and a bit of research I cant seem to find out if more is better? Or are small squares normally used due to cost
Insulated my Giotto PP last week using insul-brite.
Like Greg I opted for this to allow me to work around all of the connections and achieve a low mess outcome.
I used 2 and 4 layers (2 in the front of the boiler where it was tight getting it down between the front panel), and insulated the ends as well.
Cycle times improved (forgot to measure before sorry), and noise is damped considerably being lower in tone and volume with less ringing and vibration.
I have not added dynamat but consider a heavy substrate like that would be excellent for absorbing direct sound energy and energy transmitted into the panels. Might be my next step :).
oops... forgot to mention another option..
Take the top off, pump in expanding high temp insulating foam or fiberglass. Let it expand and set then trim off level to fit the top.
Not great for maintenance and may put your espresso temp at the group out of wack but it would do the job well ;D
The instructions say that small amounts are enough to damp large areas. I figured if it worked for cars...Originally Posted by 3E39362B6E6A6A6E5F0 link=1258726137/58#58 date=1338013200
thanks Greg, dynamat arrived in post today
This is correct, Dynamat doesnt work by blocking the sound, it works by increasing the mass of the panel to reduce transmitted vibrations, and also makes the mass distribution across the panel non-uniform which damps any potential resonances.Originally Posted by 407562605068756A666B63070 link=1258726137/61#61 date=1338543727
Has anyone used bubble wrap for boiler heat insulation?
Or as noise suppression of the water pump?
Bubble wrap has a melting point of about 2 deg C. Don't go there!
Expanding foam could make a big mess. Don't go there.....
Did my DC Mini today.
I picked up 4 square feet of Stinger branded sound dampening adhesive from Autobarn for $50.
I have not completely finished cause i wanted to drink coffee though so i just undid the 6 screws on the sides and lifted the outer case off and completely covered the panel from the bottom and left around 6cm from the top. I also covered the underside of the metal panel that sits between the boiler and the cup tray.
The result is a much sturdier sounding machine and less of that tinny vibration sound. The sound it makes now is that low pitched sound that the vibe pump used to make just as it ran out of water. Slightly disturbing for the first 5 seconds but much appreciated by the ears now
The next time i will put some around the pump area to see if i can reduce the volume more.
I will also make sure i take a couple of pictures while i am at it.
I got some of the Stinger Expert Roadkill deadener. I applied it to my Bezzera Domus Galatea, it made a marked difference to the sound of the machine. There is a buzzing somewhere inside that I could not locate to isolate, maybe its just a slightly noisy pump, but it was certainly worth the effort. I applied it to side and rear outer panels, the vertical panel between the tank and boiler, along with any other metal sheeting that resonated when tapped with a finger. I found the source of a somewhat random horrible loud noise in the process. I inserted an in tank water softener, and this was at times vibrating against the side/base of the water tank, the tank was acting like a drum!
In 2009 i lagged my Faema Due boiler with Armoflex HT - closed cell foam about half an inch chick. Resulted in pressurestat triggering about once every 4 mins as opposed to every two mins. Checked 'under da hood' the other day and some of it has gone hard where the really high temp areas are but still doing its job.
Do you know who sell the insulation foam in Australia? Needed some for my home lever machine. Thanks
Just be aware that insulating an espresso machine boiler is not the simple nirvana that some seem to think.
When you insulate something that wasn't insulated to start with, you change the designed heating cycle dynamic. Depending on the internal design of your particular model, insulating the boiler may be helpful in some way, and then again it may not. For example, insulation in some machines causes them to overshoot the designed temperature cut off point by a significant margin, causing whatever related problems that it will, and necessitating other internal changes / modifications to try and work that back down to an acceptable situation.
That is, beware that every action has a reaction, and its not the same for all different models. Determine first what you are trying to achieve by insulating, weigh up whether its really "worth it" just because its a subject that is occasionally discussed in forums, and be prepared that the behaviour of the machine may change in some way.
Does anyone know of a convenient source for some boiler insulation - I have looked around but unless I want a full role of it then it is difficult to find. I only need to insulate one 5 Litre boiler.
I did some searching and it seems Armaflex was recommended - anybody have any other recommendations that are easily sourced?
Its for a Aurora Lever.
Java "Search engines are your friends" phile
Toys! I must have new toys!!!
Thanks - I finally tracked down some from an A/C Supply shop.
I used Dynamat for my Bezzera Magica, and am overwhelmed with the difference. Before I use to get some rattles which to me made the machine sound cheap, now all of that is gone,. I can still hear the pump and have a little rattle from the top plate (which cant be insulated as its the cup warmer - I was able to insulate half), but it has made a great improvement. I would like to do the boiler but have not been able to find something suitable. The dynamat is not suitable for the boiler, as it gets to hot and will cause the sticky glue to heat up and not adhere.
I used a whole packet, I did every wall inside my machine, covered about 8-% of each side, I used some on the the cup warmer (back half which has no holes) and also placed a sheet on the bottom of the machine. I was not game to completely strip my machine but it would have been good to do to cover the motor. I also put some under the cup tray. Any little vibration is gone now.
I am happy with the result.
Im now deciding if I should do my grinder, surely it can quietened a bit internally to dampen the noise?
has anyone done there grinder yet?
Has anyone found a local supplier for small quantities of "Closed Cell Silicone Rubber Sponge Sheet" at a reasonable price? Quite a bump but seemed the right thread for the question.
The only place I could find was Jehbco who won't sell smaller quantities. The guy I spoke to said the smallest quantity they would sell is 1m x 2m x 10mm for $1000! I found an old price list from 2015 but even at 1m x 1m x 10mm back then it was $628. https://jehbco.com.au/wp-content/upl...price-list.pdf
I have concerns about using other materials in case toxic fumes are emitted when heated by the boiler. Other products I've looked at don't seem to have an MSDS or full specs to look at (Low Electrical conductivity, Heat ratings etc).