Hello,

Is it possible to drill into a staircase made of concrete with sprinkled stones as decoration?

Concrete staircase covered with decorative pebbles, next to a metal railing, with gravel ground beneath.

I have a rotary hammer from Jula which isn't a precision instrument but it eats holes in concrete walls daily without complaining, but the stones might make it worse?

I want to install a doorstop and therefore make a hole quite close to the railing, but I don't want to crack the slab or cause any other unintended damage...
 
MrJay
Why not glue the doorstop with PU glue instead, like Tec-7, to avoid all the hassle?
 
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Jonobe
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If it can't be glued, then I would probably consider drilling with a hole saw without hammer action.

In the worst case with a regular hammer drill, but then I would use a piece of wood with a hole in it as a guide so the drill doesn't dance away.
 
MrJay MrJay said:
Why not glue the door stop with PU glue instead, like Tec-7 so you avoid all the hassle?
I agree with gluing, but Tec7 is an MS polymer rather than a PU glue, isn't it?

In this case, it might be better with a foaming PU glue like stone adhesive, or D5 wood glue (PU) e.g., https://www.illbruck.com/sv_SE/produkt/pu204-traelim-pu/
 
MrJay
Anders243 Anders243 said:
I agree about gluing, but Tec7 is an MS polymer as opposed to a PU adhesive, right?
Absolutely right, my mistake.
 
Thanks for all the tips

I actually have a bottle of Illbruck PU700 that I was thinking of using to glue down the stair treads so they don't tilt when you step on the edge.

It seems to glue metal as well, but I'm a bit worried that it will foam and get generally messy around. Under the steps, it's nothing that concerns me, so I hadn't thought much about it when I bought the tube.

I assume it will be quite strong and hold even if you glue a stop of this type:

Stainless steel door stop with black rubber top, used to protect walls and doors from impact, shown on a manufacturer's webpage.
 
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