spray paint and iron railing questions

[Mongoose]

1. Can someone help with an easy spray paint question? I'm using regular Rustoleum gloss enamel.

I'm trying to figure out the directions. The humidity and temperature requirements are a mystery. For how long does it need to be in the range? The dry times are 2-4 hours to touch, 5-9 hours to handle, and 24 completely. The chances of my location hitting the recommended ranges for both temperature and humidity for 24 hours ever is pretty much nil. And I can't do it inside.

2. We have iron railings next to the porch steps front and back plus one at the top of the retaining wall that forms one side of the driveway. They were screwed in but the screws have rusted and/or come out. I asked my father to help reattach them but got random mumbling that it's really hard to attach stuff to concrete. The railing at the retaining wall concerns me the most since it is a 10+ foot drop from there onto concrete (I have forbidden the kids from going anywhere near the area but...). What works be the best/easiest way to secure these back to the concrete?

[Sibley]

1. Can someone help with an easy spray paint question? I'm using regular Rustoleum gloss enamel.

I'm trying to figure out the directions. The humidity and temperature requirements are a mystery. For how long does it need to be in the range? The dry times are 2-4 hours to touch, 5-9 hours to handle, and 24 completely. The chances of my location hitting the recommended ranges for both temperature and humidity for 24 hours ever is pretty much nil. And I can't do it inside.

2. We have iron railings next to the porch steps front and back plus one at the top of the retaining wall that forms one side of the driveway. They were screwed in but the screws have rusted and/or come out. I asked my father to help reattach them but got random mumbling that it's really hard to attach stuff to concrete. The railing at the retaining wall concerns me the most since it is a 10+ foot drop from there onto concrete (I have forbidden the kids from going anywhere near the area but...). What works be the best/easiest way to secure these back to the concrete?

1. I would try to keep temperature and humidity within range for the 9 hours, but try for as good as you can get after that. My mom did it that way, and it came out fine.

2. Less helpful on the screws. Sorry, your father is correct, attaching to concrete is harder. Fixing a damaged one isn't fun either. For my parents, it involved fixing the concrete as well. Hope the kids will listen to you until you figure it out.

[Spork]

If the concrete is in good shape, I've had reasonable luck with driving in wedge anchors.  If you do it correctly, you'll have a stud permanently attached to the concrete and you can bolt/unbolt it as needed.

I am guessing it was originally put in with Tapcon type screws.  I'd question whether concrete Tapcon-type screws are sturdy enough for a railing.  (I don't know code well enough to know for sure.)  You could always use a slightly bigger Tapcon screw (drilling it out to the bigger size) if you really want to go that route....  but I think the wedge anchor will make a more permanent attachment point.

[Mongoose]

Thanks.

That's what I was afraid of hearing. I'm sure that they are Tapcon screws or something less suitable. I'll look into wedge anchors or the larger screws. There is no enforced code where we live. I'm hoping for some end result that is sturdy enough to last a few years. We're hoping to move in less than 4 years. The kids won't be near the driveway drop off again.