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Using Plaster Products for Embossed Effects
Last Updated: 07/09/2010
Creating embossed effects on walls is easy using Plaster, spackle, or acrylic modeling paste. You can use the standard 7mil thickness  for a slight emboss or the 10mil thickness for a more defined emboss. If you are using a fine grain plaster, you can use the standard 7mil mylar. If you are using heavier grain plaster, the 10mil will work better for you. For walls, I suggest using either decorative plaster products for a refined look, or acrylic spackle for a simpler project that will be painted over.

Plaster application
Apply the plaster through the stencil using a 2-3" wide rubber paint brush called a Color Shaper. These are available online through Dick Blick or Daniel Smith Art Supplies. Pick up a small amount of plaster on the brush and apply it in the direction of the opneing. i.e.,If the opening is a long thin shape, move the brush along the shape, not across the shape. If the shape is round, bring the brush in from the outside edges toward the middle. When the image is finished to the degree you desire, remove the stencil and allow the image to dry. If you wish to leave the embossed image raised. you can stop now.  If you want to embed it, you need to apply another coat of plaster to the wall and the embossed image. allow to dry to the prescribed degree and burnish the surface.

Spackle application
If you are applying acrylic spackle, you will use a stiff plastic spreader. Apply the product in the same way. Remove the stencil and allow the embossed image to dry. When dry, prime the surface and then paint with a latex paint covering the embossed image and the surrounding wall.  When the paint is dry you can apply a glaze that will gather in the cracks surrounding the embossed image.



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