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How to make faux agate coasters

Tara Dennis shows you how!
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A quick online search for agate or quartz coasters will bring up beautiful pieces at eye-watering prices. But you can get the look without the budget blowout by making your own. 

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With little more than MDF discs, a few tubes of flow paints and a packet of party balloons, you can create your own gorgeous gold-edged coasters.

Faux agate coasters on table
You can create faux agate coasters in your fave gem tones – green, blue, purple… (Credit: Brent Wilson) (Credit: Brent Wilson)

What is agate?

Agate coasters
Agate slices show off lovely bands of colour.

A common rock formation, agate is a type of quartz (or chalcedony – a translucent variety) with bands and patterns in an array of colours. Used as gemstones for millennia, agates are also cut as marbles, paperweights and other household items. 

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Easy steps to your faux agate coasters

Gather your supplies:

  • MDF coasters
  • One-step primer
  • Artist’s acrylics matte flow in three blues and gold
  • Water-based clear varnish

You’ll also need:

  • Paintbrushes
  • Wire rack
  • Plastic cup
  • Balloons

Here’s how

Step 1

Step one: apply primer

Apply primer to MDF coasters and leave to dry on wire rack. 

Step 2

Step 2 : Squeeze paint into plastic cups

Squeeze paint into plastic cups and add water in a ratio of 4:1. Mix well. 

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Step 3

Step 3: Pour darkest colour on to coaster

Pour darkest colour in centre of coaster in a circle. Pick it up and tilt to spread the circle. 

Step 4

Step 4: Pour two more colours on to coaster

Pour 2 more colours onto first circle of paint, then finish with gold.

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Step 5

Step 5: Blow up balloon

Blow up balloon and tie off. Press balloon onto coaster to spread paint. Use your finger to apply gold paint around coaster edge.

Step 6

Step 6: Apply 2 coats of varnish

When paint is dry, apply 2 coats of varnish to coasters with a paintbrush. Leave to dry.

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You might also like:

How to make DIY faux flower arrangements

How to create a pour painting

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