Cast countertop green

[SebbeBL]

Hi,
I have cast a concrete slab in form plywood with rebar for my outdoor kitchen, it stayed in the mold curing a bit too long (about 1.5 months) before turning.

When I turned it today, the slab has become completely green...? What can I do to remove it?

Thank you in advance!

 

[SebbeBL]

Hello,
I've cast a concrete slab in plywood with rebar for my outdoor kitchen, it stayed in the mold for a bit too long (about 1.5 months) before flipping.

When I flipped it today, the slab turned completely green…? What can I do to remove it?

Thanks in advance!

 

[Unikt namn]

Is it possible to scrub it off with hot water and a scrubbing brush?

 

[SebbeBL]

Can it be scrubbed off with hot water and a scrubbing brush

Can it be scrubbed off with hot water and a scrubbing brush?

Can it be scrubbed off with hot water and a scrubbing brush?

No unfortunately not, it's kind of embedded in the concrete somehow.

 

[AXS]

Varnish or glue from the board.

Sand it to remove it. It shouldn't take too long and it will look nicer in my opinion.

 

[SebbeBL]

Is there any kind of concrete paint that can be used, perhaps??