DIY Project

Science

Cyanotype sun prints

Deep blue prints made by the sun shining around leaves and lace on special light-sensitive fabric or paper.

Cyanotype sun prints
LevelIntermediate
AgesAges 12 and up
Time45 minutes plus drying
Cost$12 to $20

What you'll need

Materials

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Tools

  • Tub of water
  • Paper towels

How to make it

Safety

Wash your hands after handling the treated sheets, and keep them away from mouths and pets.

  1. Step 1: Work in the shade
    1

    Work in the shade

    Open the pack indoors or in shade. Sun starts the reaction right away.

  2. Step 2: Arrange the objects
    2

    Arrange the objects

    Lay the sheet on cardboard. Place leaves and lace on top.

  3. Step 3: Press with glass
    3

    Press with glass

    Lay the glass on top so everything stays flat.

  4. Step 4: Expose it to sun
    4

    Expose it to sun

    Carry it into full sun. Wait 3 to 10 minutes until the paper turns pale gray-blue.

  5. Step 5: Rinse it
    5

    Rinse it

    Rinse in water for 1 minute. The blue shows up as you rinse.

  6. Step 6: Dry it flat
    6

    Dry it flat

    Lay it on paper towels. The blue gets deeper over the next day.

Edie's tip

Add a splash of hydrogen peroxide to the rinse water for instant deep blue.

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