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Concrete Lightbulb Wall Hook

Step 7Mount it on the wall

Mount it on the wall
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Now that you have this killer Concrete Lightbulb Wall Hook, it's time to mount it into the wall. The steps here are fairly simple.

1) Find the stud. This wants a wood stud in the wall. There are multiple ways to find a wood stud, I'm using a cheapie stud finder.

2) Drill the hole. Using a 1/4" drill bit, drill a hole 1.5" deep into the wall.

3) Screw it in. The hole is big enough that you can can screw it in, but the bite is good enough that it can hold just about anything you want to hang off it. Heavy overcoats, small children, whatever strikes your fancy.

4) Hang your hat. Or you could use it as a hat hook. It's all good.
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42 comments
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Apr 5, 2012. 6:54 AMazharz says:
Nice Instructable, and I have an idea for you why not mix it with poster colour so the concrete bulb have shiny colour.
Jan 24, 2010. 9:34 AMteja8045 says:
hey i have a doubt that cement won't gets harder if there is no air how can we get it ?????can u reply me plz....................
Sep 22, 2011. 3:15 PMDB.Cooper says:
concrete cures best when it is not exposed to air. a 3000 psi rated mix will easily test to 5000 psi when kept in a sealed environment for a sufficient time.

concrete does not air dry like clay. it is a chemical reaction that causes it to harden, similar to an epoxy.

in fact during the construction and repair of bridges, oil wells, hydrolic cement is used and it will cure underwater. remember the well repair in the gulf of mexico?

the curing in a light bulb would be near perfect and if left long enough it would have the same tensil strength as granite or even greater.
Aug 31, 2011. 9:29 AMmrmerino says:
The cement doesn't need air to dry!
May 9, 2009. 4:24 PMloofah3Thousnd says:
I've attempted this 3 times now and every time I try it, the cement is never hardened. I crack open the bulb and the cement is not cured. What is the problem. Is there no air getting to it?
Apr 24, 2011. 5:05 PMyour_dragon113 says:
check your mixture and be sure to leave it for at LEAST 2 to 4 days before breaking the glass.

I've made quite a few of these, using about 6 different types/styles of light bulbs and they all have come out looking beautiful. This has been one of the most Fun istructibles I've found and played with. Top Notch!

;)
Apr 10, 2011. 8:22 PMnontiso says:
concrete takes 1-2 days to set. industry standard for aplying a working load is 7 days for quick set and 28 day for normal concrete.
Sep 27, 2009. 3:16 PMValche says:
"Is there no air getting to it?" Really? It's sealed in glass, lol.
Nov 11, 2009. 3:44 PMCubie2 says:
cement doesn't need air to dry... thats because it doesn't dry, it SETS. It will even set underwater... that's the beuty of it. I think you just need to wait longer- wait like a week and THEN crack it open.
May 17, 2009. 9:01 PMdavid_ says:
I believe the amount of water you use, type of cement, and humidity of where you are all determine how fast it sets. I know there is a quick-set cement that my pool guy used to install a rail in Phoenix that set super quick in the dry air. They said it takes a lot longer to set up in Cali because it is more humid. Maybe try a quick set, don't use too much water, and wait longer if it is humid.
Nov 18, 2010. 7:02 PMrodrique says:
i'll try it, i'll use some old bathroom light fixtures to....just mount them at the front entry and screw in five bulbs...good for coat-rack

on the setting of concrete.....if bulb is clean,,,including no soap, should be no problem, colord concrete could be used,
mixing yr concrete with fine sand thet is rough cracked rather than round aggregate gives better bond, a small amount of Elmers carpentry glue, acts as a bonding agent......all concrete bonding agents are take-offs on this stuff.
the dryer the mix, the harder the set...thet is, the water cement ratio.
i'd make it pourable, with some Elmers for elasticity. and use a squeeze bag...like cake decorators do.
now if yr placing a lag screw, it will not stay in place with too wet a concrete..
i would gently tapp the sides , and bottem of the bulb....vibration lets the air out, also brings water to top....because fines settle.
then i would take a blastic bottle cap.punch a starter hole in the centre, screw in the lag bolt, and work it down, tapping the bulb....it should fit right flush, wipe off excess and let set.........portland cement takes 28 days to set....but it will always draw moisture....because it is a fired calcium based material....it never quits setting...the original portlands found in ancient diggings still is working.
i recommend using a sealer too''''i do this often, or a clear epoxy.
why?
because it is one of the most mis-understod health hazards around.
sitting on cement, even walking on untreated floors....and living in cement base-ments thet have not been sealed, will draw the moisture and life force from the body....breathing in cement dust too is not right....but use gloves, the advice on glass breaking using heat sounds ok....but why not try hot water, boiling--then cold....i have not yet....i wish you well
it's too cold 4 me right now....gotta let this one wait
Nov 7, 2010. 7:52 AMninethirteen says:
Nice doorknob too.
Jan 2, 2010. 12:05 AMterribug says:
I wonder if you could use burned-out bulbs?  Have you tried that?
Sep 20, 2010. 6:27 AMowenaero says:
yes that would be the best after all you destroy it.
Jan 27, 2010. 10:36 PMFrogz says:
naw, you NEED to use a new light bulb or else it wont have an intact filiment
the use of the filiment?
to keep the thetons from disturbing the e-meters!
Jan 31, 2010. 6:31 PMskaterqwertyuiop says:
 LOL, Scientology is no more insane than all of the other religions out there :P.

Sep 19, 2010. 4:40 PMGarlikguy says:
Lol, yeah...
Apr 1, 2010. 2:36 PMHelder4u says:
I believe (!?)  - that so called religion, is almost unparalleled regarding insanity - LOL.
Jan 6, 2011. 7:13 PMreed9driver says:
All religion is merely each cultures way of explaining our existence, and a way for man to never feel alone......Cool Light Bulbs though!!
Apr 1, 2010. 7:30 PMterribug says:
I believe it is only surpassed by those celebrating their religious holiday today:  atheists.  Psalm 14:1  "Only the fool says in his heart, 'There is no God.'"  Happy Holidays, non-believers.
Sep 19, 2010. 11:57 AMARJOON says:
i totally agree with u. it is just a business and to gain leadership
Apr 1, 2010. 7:34 PMskaterqwertyuiop says:
 I guess that makes me a fool :P
Sep 10, 2010. 11:03 AMkibbler says:
Join the club. Muahahaha
Apr 1, 2010. 7:09 PMskaterqwertyuiop says:
 Don't even get me started on Christianity... 
Monitors will shatter.
Everyone is entitled to their opinions. 
Jan 31, 2010. 6:32 PMskaterqwertyuiop says:
 I meant that in a totally serious way.
Jul 8, 2009. 12:09 PMjonnhye says:
pffffffffff!!!!!!!!!!!!!estaria mejor hecho si le pones un led dentro!!!!!!!!
Jul 6, 2009. 2:01 AMsanidpv says:
time consuming project , but it is nice
Jul 1, 2009. 5:39 PMamg1293 says:
WoW i´m definitly going to make one
Jun 29, 2009. 6:42 AMferdemci says:
wow this is amazing!!!
Jun 27, 2009. 11:48 AMcharlynorte says:
Muy bueno
Jun 17, 2009. 8:51 PMkarpoff says:
OMG amazing!!!
Apr 13, 2009. 11:43 AMmastermayhem117 says:
Just a thought, quicker way to remove glass. blow torch, gently heat but not too long. Bucket of cold water... Shouldn't crack the cement as long as you don't heat it too long. glass should shatter quite nicely though.
Apr 9, 2009. 11:19 PMSLJ77 says:
Maybe a piping bag would work to get the mortar into the bulb. Also wrapping the set bulb with a piece of cloth and tapping it on a concrete floor (like cracking a boiled egg) would reduce the danger of glass flying. The cloth and glass can then be wrapped for safe disposal.
Jun 8, 2008. 9:31 AMSoupraok says:
You should try to do this on a compact fluorescent
This link will show you how to take it apart, but be careful they contain mercury
Jun 14, 2008. 7:05 PMfordman15243 says:
im just wondering, but why is it so "dangerous" to play with mercury, yes I know the fumes are poisonous and everything, but my dad tells me stories of when he was in school, they, dare I use the term, stole mercury from the science lab and everyone on the bus was rolling it around in the bare hands WITHOUT masks or anything, so for just a drop of mercury I would just play with it!!! (yes, im 14)
Mar 23, 2009. 10:12 AMcgosh says:
Touching mercury isn't the issue (though that's not good). The biggest problem actually comes from dropping mercury into a carpet, then vacuuming the carpet and sending microscopic droplets of mercury into the air so everyone gets to inhale them. For years. The only way to get rid of then it is to remove the (toxic) carpet. And I would definitely wash my hands right after playing with it.
Aug 16, 2008. 10:52 PMRishnai says:
The phrase "mad as a hatter" comes from the liquid mercury and mercury fumes that hatmakers would breathe or absorb through their skin. The mercury exposure slowly drove them mad. Of course, if I remember correctly, mercury was a "cure" for VD, and those people didn't die immediately. The mercury exposure got 'em in the end, and right before was probably unpleasant, but breaking one lightbulb doesn't worry me when compared with the levels of exposure in the above applications. Getting exposed to mercury at all is a crapshoot, but the odds are in favor of you surviving a one-time exposure.
Aug 17, 2008. 3:26 PMmaster-of-chaos says:
That was mercury compounds that were used in the hats that were toxic. And directly ingested mercury is very dangerous but skin contact, not really.
Aug 27, 2008. 12:52 AMblugyblug says:
Yeah skin contact is technically harmless but its just if mercury residue is on your hands and your finger gets cut or you eat a sandwich then it will go into your body.
Aug 18, 2008. 7:45 PMRishnai says:
True, it depends on the precise compound and method of contact. But I think my thesis still stands, that the amunt and compound of mercury found in a CFL is not going to kill you (it might change the statistical likelihood of various illnesses, but not by much).
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Author:whamodyne
Named "Emblematic of the Instructables Universe" by the New York Times, I'm a maker and designer who enjoys looking at things sideways and playing with established form in new ways.