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GeneralQuake-proofing your collection
25th Nov 2015 05:19 UTCJohn M Stolz Expert
John
25th Nov 2015 07:31 UTCCourtenay Smale
Some years ago, friends of mine living in San Francisco used a product appropriately called 'QUAKE HOLD'. The description stated 'Help Secure Your Most Valuable Treasures from Earthquakes, Kids & Other Shakers In Your Home'. They had a fine display of decorative art pottery on open shelving, each item being affixed to the shelf by Quake Hold, which resembles White Tack in appearance. It further stated that 'QUAKE HOLD is a means to secure your small treasured valuables in place during seismic activity or common household activities such as dusting'.
It was made in Malaysia and marketed by a company called TREVCO, based in Monrovia, CA.
Courtenay
25th Nov 2015 09:57 UTCLefteris Rantos Expert
Lefteris.
25th Nov 2015 12:01 UTCReiner Mielke Expert
25th Nov 2015 12:48 UTCChris Stefano Expert
25th Nov 2015 13:41 UTCBob Harman
25th Nov 2015 14:18 UTCRob Woodside 🌟 Manager
A small magnetude 6 quake accelerated me about 30 cm in the quakes direction and back. A single specimen fell over- no damage. When the big one hits my building will pancake and all will be lost including me.
25th Nov 2015 14:54 UTCSteve Hardinger 🌟 Expert
25th Nov 2015 16:04 UTCTony Albini
Tony Albini
25th Nov 2015 17:45 UTCDouglas Merson 🌟 Expert
26th Nov 2015 16:52 UTCJohn M Stolz Expert
Bob--would that I could buy EQ insurance. Here in California at least, it is only available by the CA EQ Authority--non-profit agency who offers only limited coverage. Regular insurance does not offer an EQ rider--it was hard enough finding an ins. co. that would specifically cover minerals.
Tony--I feel your pain, although I wasn't as lucky as you. Bunker Hill Pyromorphite is super brittle...
Rob--alas I must report that my dad did the same plaster base thing to some nice big quartz specimens he found out of some tunnel construction he was managing--I tell you, I was cringing and wincing as he formed that mess up and the 1st quartz tipped over...
Steve, Chris, Reiner, and Courtenay--thanks for the suggestions; I'll follow up.
Happy Thanksgiving folks
John
6th Jan 2016 05:05 UTCJenna Mast
Ideally though, I would secure the bookcases to the wall using one of the kits they sell here for it. I've seen two types. One that uses fabric straps, and one that uses steel cables. To secure the specimens to the shelves in the past, I've used both Earthquake putty/museum putty/mounting putty, and museum wax. I prefer the putty because it's a little less messy but I haven't done any tests to see which withstands shaking better. I also use the putty as mineral tack....it might very well be the same stuff though I'm not sure. I just bought some 3M mounting putty after running out of the Earthquake putty. The 3M stuff is a little softer and stickier on the surface while the Earthquake putty is smoother on the surface but needs more working to soften it sufficiently for use.
Earthquakes can be strange beasts though. I lived in an area that got a lot of shaking during the Northridge Earthquake and the only thing that fell was a lamp.
Another thought, if you were up for a project you could build a base isolation system for your display cases.
6th Jan 2016 05:16 UTCAlfredo Petrov Manager
6th Jan 2016 07:08 UTCJenna Mast
Earthquakes tend jolt one direction as much as they jolt in the opposite direction. I think that's possibly why more objects more objects don't fall off of things, which brings us to another point. Put your "top shelf" specimens on deep shelves!
Alfredo Petrov Wrote:
-------------------------------------------------------
> Tomasz Praszkier and companions put on a wonderful
> display of Morocco minerals in at the yearly
> Crystal Days event in Poland last summer - big
> professional glass cases on the ground floor of an
> ancient stone building. Outside, on the street,
> perhaps 50 or 100 meters away, was a stage with an
> incredibly loud rock band. They weren't bad, but
> their bass did measure something on the Richter
> scale in that part of town. Over in the town hall,
> despite its thick and ancient stone walls, the
> mineral specimens in the cases were vibrating on
> the glass shelves and slowly "walking" towards the
> front of the case. Like you, Jenna, Tomasz solved
> the problem with sticky tack under the specimens.
> What should we call this.... earthquakes of
> non-tectonic origin?
8th Jan 2016 18:37 UTCJohn M Stolz Expert
A couple of observations: On anchoring your bookcases, the wall anchors need not be super stout. It doesn't sound like you have a sheetrock wall, but if you did, a 70lb rated sheetrock screw should do the trick. You're just overcoming tipping, and that's not much. If it's lathe and plaster, just drill a hole and use a moly or expansion anchor. Of course, I suppose we should remember that Northridge was the driver for revising the UBC to include a vertical acceleration component in the calcs...
To all:
For me, the problem is the tack. That clearly makes the most sense, but my pieces (toenail to miniature to small cab) are all on Lucite bases that are custom dremmelled to display the piece (and oftentimes propped with a formed upright peg fused to the acrylic base. So that suggests I have wasted all that time and effort to avoid using the usual hot glue solution. And on top of it, I would also have to put an unsightly daub of tack between the base and the shelf!
It's going to be hard for me to give up my custom bases; It's become something of a ritual with every new purchase, to make the new base--about 15min for each. I really need to do something--my wife is telling me I'm crazy for procrastinating--and she's right.
John
10th Jan 2016 06:45 UTCJenna Mast
Thanks for the tips. The walls are plaster with a more coarse layer behind the surface coating. I'm not sure if it's lathe and plaster or some other type of construction. It's an old building not more than 300 feet from a fault line that is thought to generate large earthquakes. The owners wish to demolish it but I'll look into your suggestions at the new place.
10th Jan 2016 12:18 UTCSusan Robinson
Does anyone have more information on how to remove these tacky compounds? Knowing how to completely remove them from the minerals without damaging specimens is just as vital as how to save the minerals in a quake.
10th Jan 2016 16:31 UTCTony Albini
When I have to replace tack that has become dry or unsightly, I gently remove it from the specimen by hand to get the majority of the material removed. I then have carefully used dental picks to get most of the remaining material off the specimen. Usually I can get 90-99% of the tack removed this way. Since I am replacing the old tack with new because I want a different color of tack or a stickier tack, this works well for me.
Try my mechanical method on a surplus specimen and see if it works for you.
Tony Albini
11th Jan 2016 03:03 UTCRob Woodside 🌟 Manager
11th Jan 2016 04:26 UTCAlfredo Petrov Manager
Dr Russ MacFall used to use sticks of bees wax that had been specially formulated for museums. It was wonderful stuff! I got some from him in the early '80s. Don't know whether that is still available or not.
11th Jan 2016 13:34 UTCLarry Maltby Expert
Some time ago I had to remount a toilet and found that the sealing gasket at the floor uses bees wax. They come in different thicknesses. One possibility is to buy a thick gasket and salvage the bees wax.
11th Jan 2016 19:50 UTCJohn Oostenryk
I have utilized thick plex with router grooved support along back(for strength/no sag). Also utilized small nail inserts or thin wood strip into back under plex shelves. It is unobtrusive when color matched.
I do like that plex is more of the clear color, than typical green nonUV tint.
My current cases with covers, I made sure door comes to shelf edge, to avoid that creep and leap issue, (looking like lemming myth!)
I have a very low, thin plex strip at edge of uncovered cases, for same reason. I think of it as the low hurdle restraint! See my lil learning story at end. ugh.
John, you could look into the thin drawer liner web matting for 'grab' on shelf. Cut to size your bases. Also, probably better esthetics, far easier to apply, I have seen clear silicone dots, for corners, used for same anti-skid on glass art objects.
...
Alfredo- Yes- loud music and little kids running!
Lil note- as a kid, our home had open shelves ceiling to waist height, with a stone base that matched the fireplace, between dining room and living room. My mom had placed art glass vases on these. 2 or 3 times, one vibrated to edge over time, because of us kids running around. it would fall caroming off the stone base. Glass explosion! Mom yelled and cried, we cried cause she was sad-ugh! (Don't run in the house?? Oh:(
Anyway, someone told her to put a bit of foam rubber under edges and problem solved... Never forgot that- they still live there:)
I overlooked that when I moved out, and got a large powerful stereo... until some objects disappeared (to be found behind the furniture they fell behind.)
Luckily that was pre-rock collection display at my residence!
10th Jul 2019 18:29 UTCSteve Hardinger 🌟 Expert
I live west of Palm Springs, California..about 120 miles south of the Ridgecrest area. We certainly felt the two quakes as mild rolling motions. No damage to my collection, despite the fact that I haven't taken any specific earthquake proofing steps (although I certainly should...).
Those of us in Earthquake County (a locality that needs to be added to Mindat? LOL) should read: Earthquakes and Mineral Collections by Tony Kampf (retired mineral curator at the Los Angeles Museum of Natural History), Mineralogical Record, Vol. 25, No. 4 July - August 1994, pages 245-247.
10th Jul 2019 21:16 UTCBob Harman
He had a short 1 paragraph post, just the other day, stating that his collection was undamaged. He briefly described his shelves and cabinets. CHEERS.....BOB
14th Jul 2019 21:03 UTCJohn M Stolz Expert
Steve, thanks for pointing me to the MinRec article
14th Jul 2019 21:31 UTCSteve Hardinger 🌟 Expert
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Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2024, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: April 24, 2024 14:12:36