Attaching Angle Iron to Ledges

[ConnyMas]

I've found a ditch spot with a nice ledge at the top in my new neighborhood.  The problem is the ledge is too crusty to grind, but it's square enough that I think throwing some angle iron on it would make it skateable. Does anyone have recommendations on how to attach angle iron to a concrete ledge? 

[Silky Johnson]

Make sure to clean the ledge off as much as possible from any mud, dust or debris and then your gonna want a polyurethane based adhesive (liquid nails or PL Premium) from home depot or any hardware store, set it up with a caulk gun and be liberal with the amount of adhesive you use so it stays put.

[rocklobster]

if drilling into the ledge is not an option then liquid nails is the way to go, slather that stuff on the angle iron, slap it on and get some pressure on it (cinder blocks or a mate standing on it for a couple of hours).  should hold for a couple of months.

[yeahisaidit]

What they said above. But to reiterate, when they say liberal/slather the liquid nails, do just that. I built a six foot ledge with cinder blocks and thought a "squiggly line" on both edges of the angle iron would be enough; it wasnt. I used regular strength first, and that fell of a couple times after a couple weeks. Eventually i used almost an entire canister of extra strength liquid nails on both sides of angle iron, and the ledge has been good for a year. Its much easier to scrape off excess glue then worry about not having applied enough.

[Andrew]

Make sure to clean the ledge off as much as possible from any mud, dust or debris

this part is really key. same goes for bondoing a crack

[rocklobster]

What they said above. But to reiterate, when they say liberal/slather the liquid nails, do just that. I built a six foot ledge with cinder blocks and thought a "squiggly line" on both edges of the angle iron would be enough; it wasnt. I used regular strength first, and that fell of a couple times after a couple weeks. Eventually i used almost an entire canister of extra strength liquid nails on both sides of angle iron, and the ledge has been good for a year. Its much easier to scrape off excess glue then worry about not having applied enough.

Yeah, just slather that stuff on thick, i dont think the liquid nails can be reused after its been opened, it hardens, so might as well use the entire tube.

[ducky darnsworth]

What they said above. But to reiterate, when they say liberal/slather the liquid nails, do just that. I built a six foot ledge with cinder blocks and thought a "squiggly line" on both edges of the angle iron would be enough; it wasnt. I used regular strength first, and that fell of a couple times after a couple weeks. Eventually i used almost an entire canister of extra strength liquid nails on both sides of angle iron, and the ledge has been good for a year. Its much easier to scrape off excess glue then worry about not having applied enough.

yoooooooooo, how hard was it to make that ledge? ive been wanting to make a ledge/grind box for a year but i have jack shit when it comes to tools and that sounds do able

[Grind King Rims]

Same as above, planning on making a ledge for go skate day. Need all the tips/help/guides/tutorials I can get.

[Paco Supreme]

figured some of you guys could make use of this

http://www.dlxsf.com/thebuildproject/guides/cinderblockledge.pdf

[shit_for_brains]

Definitely clean the surface and just cut the top off the tube of liquid nails and use the whole thing. As you can tell from everyone else, you can't use too much of it.

[j....soy.....]

figured some of you guys could make use of this

http://www.dlxsf.com/thebuildproject/guides/cinderblockledge.pdf

I was thinking of making one of these but need to do it super fast ie over night.....I saw one online where they just used adhesive to even keep the bricks together.

I get that then the ledge is a lot lighter, but couldn't you just caulk the blocks....and drop in gravel?