In my last post I showed you how I transformed my brick fireplace using a fake stone product called AirStone. If you would like to see how I did it you can find the post here – DIY Budget Fireplace Makeover.
Today I am going to show you how you can paint a concrete hearth.
For Part 2 of my fireplace makeover – I painted the grey concrete hearth in front of the fireplace using a faux stone paint technique. The original grey color of the concrete hearth looked off and the builder never finished off the edges so it was time to finally get it the way I always imagined. With the help of some craft paint, sealer and AirStone, I was able to make the hearth look like it perfectly belongs with the new stone fireplace.
BEFORE: Fireplace Hearth
Grey slab with unfinished sides. The dark streaks are just water that has not dried.
I never liked the gray and love the Autumn Mountain color of the AirStone so I went to work to get the two to look more in the same color family.
AFTER: Faux Stone Painted Fireplace Hearth
Supplies Needed:AirStone AirStone Adhesive Molding: 3/8″ x 1-1/4″ Painted Stop Hack Saw Miter box Pencil Craft paint – Beige, Grey, Brown, Yellow Ochre. I used Martha Stewart – Wet Cement, Apple Barrel Beachcomber Beige, Folk Art Yellow Ochre, Folk Art Butter Pecan, Apple Barrel Nutmeg Brown, Folk Art Linen. Glaze – I used Martha Stewart Crafts Glaze, but any glazing liquid will work. Valspar and Ralph Lauren each make one. Sea Sponge Plate to mix paint on Clear Matte Water Based Sealer – a craft paint sealer will work fine. 1/8” or small tipped paint brush Wet Rag
The height of the AirStone was about 1/4” too short to match the height around the edge of the hearth.
To solve the problem, I added white trim molding around the hearth to lift up the AirStone so the top of the AirStone would be the same height as the hearth.
The builder of my house never finished the edge around the hearth and left the floor very uneven. Since the floor is uneven a few stones are slightly raised and a few are slightly lower. In a way, this looks pretty natural.
I wanted to nail the trim molding to the floor, but the wood floor is not thick and is directly on concrete, so I decided to use Liquid Nails to attach the trim molding to the floor. Once that was secure, I added the stones using the AirStone adhesive.
How to Paint a Surface to Look Like Stone
1. Place a dollop of paint from each color of craft paint onto a plate. In the middle add about 1/8 of a cup of glazing liquid.
2. Dip a wet and then rung-out sponge into the paint a few times to mix the colors just a bit – not too much as you want to have color variations. Start dabbing the sponge onto the surface turning the sponge all different ways as you work.
3. Keep dipping the sponge in your paint and continue dabbing the surface to mottle it with paint. Note: You can see the stone color with which I was trying to coordinate the hearth color.
4. Let dry. Add a few more layers of paint following the same dabbing technique using the paint and glaze mixture until you are happy with how it looks. Dab the paint on an angle, not in straight lines – it will look more natural. If one spot looks too heavy, dab a damp rag over the surface to remove some of the paint.
5. Once you like how it looks, apply 2 coats of matte water-based sealer to protect it. Let the first coat dry before applying the next.
How To Add the AirStone Stones to the Side of The Hearth
1. Figure out how many stones you will need and line them up. Cut any if necessary to fit. I used two corner pieces, the rest of the stones were the flat edge type. Apply the adhesive to the back and press into the side of the hearth, letting the adhesive ooze out of the top. Use a wet rag and your finger to clean the adhesive off the painted hearth. Repeat on all the other stones and let dry.
Note: You can add the stones around the hearth before painting the hearth.
The adhesive is white. When it was dry, I went around with a thin tipped paint brush using cement colored paint to make the adhesive look a bit more like mortar.
All done. Now the fireplace transformation is complete and I am one very happy DIYer.