I hope you can help. I am pretty clueless about these things. I have a big serious retaining wall in the backyard and want to attach an 18 x 24 inch concrete decorative plaque to it. I am afraid of damaging it. Is there a way I can attach something this heavy without drilling? Thanks, Lissa

A construction epoxy Rezi-weld 1000 REZI-WELD 1000 Construction Epoxy , a product of W. R. MEADOWS, INC. Construction Products will work without any problems. It costs about $20.00 for a large amount. I don't see a size on the box, but it consists of 2 parts A & B and both parts came in 2 quart sized paint cans. They may have been filled half way. It's an industrial epoxy so you may have trouble getting it. It's used for precisely that application. I had to use it to epoxy corner of cement that broke off. You will never get the plaque off later if you use it. It was available here: Angerstein's Design Center and Building Materials � stores in Wilmington and Milton, Delaware � your source for residential lighting and building materials the last time I needed it.

It might be nice if you included the approximate size and weight of the plaque. Use a bathroom scale.

If you drill, and let's assume that the wall is a cinder block use a stud finder to determine where not to drill. You want to drill into the hollow portion. The only anchor I would use has a stud sticking out of it. The more you tighten the nut the more it clamps down.

The plaque weighs around 28 pounds. Do you think the epoxy would work?

I would buy/rent a Remington 22 cal. nail gun. Shoot a 1.5 " nail into the concrete with a yellow cartridge. Place a hanging bracket on the wall and place the gun barrel on top of the hole in the bracket. Wear goggles and hearing protection.

ibowman:

Size? L x W x thickness

The nail gun sounds scarey. Sorry I'm not that butch or even good with a regular hammer (wish I were)! The plaque is 14"x25" and 1-1/2" thick.

The epoxy will work fine. If the plaque weighed 75 lbs you'd need only about 16 sq in of this epoxy to bond. That's like 2" x 8". Although you would want the top, especially, to have 100% coverage to keep water from getting behind it. You know how powerful ice can be. I'd put some at the top and sides, but leave the bottom open.