concrete/plaster

[longtall 0]

Is there a solution that you put on concrete to allow plaster to stick to it ? What is it?

" 90 right, five miles then cut."---Pukin Buzzards

[futuredivot 0]

I thought it was all in leaving a rough surface, but I've never had any experience with it

You are only as strong as the prey you devour

[Royd 0]

If the concrete is slick, be sure it's clean, and then use a bonding agent.

I once had to go back and apply metal lathe, after the whole plaster job just turned loose. No profit on that job.

[futuredivot 0]

Maybe the best choice is to consult a Plaster Expert

You are only as strong as the prey you devour

[SpeedRacer 1]

Hey while we're on the subject:

I've got a house built in th 1920s. On one wall there's a 1.5 foot x 3 foot area where the top, finishing layer of plaster has buldged off of the grayish-brown base layer of plaster. The base layer is still firmly fixed to the lathes.

Do I just break away the bulged-off bit of finish layer, and then use Plaster of Paris? Do I need to use some sort of bonding agent first? Can I sand down Plaster of Paris if it's not completely level afterwards? (some people say you can sand Plaster of Paris, some say you can't. WTF.)

I've tried asking people at the local Home Depot, but they don't seem to know much about old plaster, so I can never get a straight, definitive answer out of them.

Speed Racer
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