Stained Glass Mosaic Craft Kit

Thank you for buying our Stained Glass Mosaic Craft keepsake kit.

Below are detailed instructions on how to create a stained glass mosaic, plus a few of our thoughts on making the most of your project. Each mosaic comes with a design pattern, but we encourage you to create your own design. The challenge is exciting and the results rewarding!

We hope these activities are a fun, rewarding, and helpful step in your creative journey.

Before You Start

Set up your workspace for optimal comfort and focus:

🔺 Allow enough space to comfortably spread out the pieces and work on your project.
🔺 We recommend a non-carpeted floor and adding a table cover to your work surface to protect it from glue, carbon copy paper, and glass.

🔺 We suggest grabbing a pencil, paper towels, and tape for the mosaic. You’ll need some 💧 water when you’re ready to grout.
🔺 Get comfortable: lighting, music, and refreshments will set the mood and get you in a better headspace.

🔺 Read instructions from start to finish before beginning.

One Kit, 1000+ Hours of Creative Play

This is a deluxe stained glass mosaic kit for creatives used as an activity for parties, group outings, retreats, or as a solo quiet evening at home!

There are two ways to use this kit as a fun activity. The first is to use the pattern provided and follow directions to completion. Alternative play is to use the colored glass to form original designs of choice, taking pictures of each. Share these pictures with friends or colleagues. This process can take a few hours, days or months; it’s your choice. When ready to finalize your project, the glass is glued to the board.

Mosaic Instructions

Mosaic-Making Timelapse

👉 Remove the stained glass pieces from the bag and spread them out. It’s easier to do a mosaic when you can see all the pieces.

👉 Position the Design/Pattern

We encourage you to create your own design either beforehand on a piece of paper or as you go along! Let your imagination out to play and create your own image. The additional challenge is so much fun, and you may be surprised and delighted by the result.

Whether you use our pattern or make your own, follow these steps to transfer it to your canvas:

  • Remove the protective plastic covering from the canvas.
  • Place the carbon copy paper shiny side-down on the canvas side of the base.
  • Place the pattern on top of the carbon paper. Use masking tape to hold the carbon paper and pattern to the canvas.
  • Trace over the pattern with a pencil. Do not move or lift the carbon paper or pattern until you’re done tracing.
  • Lift up the carbon paper and pattern. You should see the design on your canvas. You can use a pencil to darken or correct the lines on your base if needed.

👉 Position glass pieces to fit the design.

The glass is hand-cut and has natural variations in color from the manufacturing process, so no two pieces are alike. Take your time and be as neat as you want. The spacing between the pieces is your choice – you can fit them tightly together, like a jigsaw puzzle, or allow more room in between them for definition, especially if you are planning to grout your project.

👉 TIP: The more exacting the pieces are fitted, the longer the project will take to complete.

👉 Glue the glass pieces to the canvas.

Once you are satisfied with the glass placement, begin gluing, starting in the center of the design and working outward. The tweezers will help you here.

  • Lift up a piece of glass, place a small rounded dot of glue on the back side of the stained-glass piece, and then lay it back down on the design.
  • Glue one piece after another until the project is complete.
  • If you need to stop and come back another date and need fresh glue, Elmer’s white glue will work.

👉 TIP: As a safety precaution, do not let the glass protrude beyond the edge of the project’s edge.  Do not place the glass all the way to the edge of the canvas; leave a small margin for the grout.

👉 Allow your project 24 hours to dry before touching, grouting, or doing the collage on the opposite side.

👉 Grout Option: Grouting means filling in the spaces between the glass with a paste (grout) that will harden and create the lines throughout your piece just like the grout between bathroom and kitchen tiles.

This optional step tends to be a little messy and may be done at a later time if desired. The glue must be completely dry before grouting your project.

Grouting Instructions 

Ungrouted (left) vs Grouted (right):

Grouting Timelapse

Grout Procedure

The grouting process can be dusty and wet grout can be messy. Please make sure to protect your work area to prevent damage to floors, surfaces, etc. Also read all instructions, health precautions, and manufacturer information before setting up your work area.

  • Remove the grout pouch from the kit. Hold the pouch vertically and allow grout (powder) contents to fall to the bottom of the pouch container. Holding the pouch upright, cut the top of the pouch off with a pair of scissors.
  • Roll the top of the pouch down about ½” to form a outside lip. Place your fingers under the lip to help hold the pouch while adding water and stirring.
  • Pour several teaspoons of cool water into the bag. Stir the contents with the wooden paddle & mix thoroughly. Add more water in small amounts until the consistency of the grout is similar to peanut butter. If too much water is added, the mixture will be more difficult to use; allow excess water to evaporate before continuing.
  • Let the mixture stand for 10 minutes, and then remix and use. Periodically remix to keep the mixture workable, but do not add water.
  • With the glass pieces of the mosaic facing up, using the paddle, take small amounts of the grout mixture and apply it to the mosaic top surface.
  • Spread a thin layer of grout to cover the total surface of the project. Do not grout the reverse side. Push the rest of the grout to fill in between the glass pieces until the bag contents are empty of grout.
  • Remove the excess grout from surface and wait for for the grout to firm up.
  • Lightly begin to clean the excess grout from the surface with a damp disposable cleaning cloth. Wipe the surface gently to remove grout residue from surface of glass. The grout on the surface of the glass should be removed before the grout mixture is allowed to dry.

Optional: Seal per manufacturer recommendations, if desired: Use a pH-neutral, water-based, penetrating sealer such as AquaMix Sealer’s Choice Gold (Not Included in Kit).

    Health Precautions

    Avoid eye contact or prolonged contact with skin. Wash thoroughly after handlng. If eye contact occurs, flush with water for 15 minutes and consult a physician. Use with adequate ventilation; do not breathe dust and wear a NIOSH approved respirator. if ingested, do not induce vomiting; call a physician immediately.

    Keep out of reach of children.

    Manufacturer Information

    Composition of Product Polyblend® Sanded Grout is a dry, Portland cement based grout with silica sand, inorganic aggregates and chemicals.

    Warning – Injurious to eyes, causes skin irritation. May cause an allergic skin reaction. May be harmful if swallowed. Do not mix with other chemical products. Avoid contact with eyes and prolonged contact with skin. Do not breathe dust. Do not take internally. Wash thoroughly after handling. KEEP OUT OF REACH OF CHILDREN. Use in well-ventilated areas. Wear impervious gloves, such as nitrite, and eye protection.

    First Aid Treatment – Contains: silica sand and Portland cement. Forms calcium hydroxide when wet. If eye or skin contact occurs: rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. If inhaled: remove person to fresh area and keep comfortable for breathing. If swallowed: rinse mouth. Do not induce vomiting. Immediately seek medical advice or attention if symptoms are significant or persist. Read Safety data sheet before handling, available online at In emergency, call 800.535.5053. WARNING: Cancer and Reproductive

    Manufacturer: Custom Building Products Materials

    Product Name Polyblend® Sanded Grout 2 Manufacturer Custom Building Products Technical Services 10400 Pioneer Boulevard, Unit 3 Santa Fe Springs, CA 90670 Customer Support: 800-272-8786

    Technical Services: 800-282-8786 Fax: 800- 200-7765 | Email: or visit

    Photo Collage

    The back “paper” side of the mosaic serves as the base for your photo collage. The photo collage is a chance to make your piece truly unique and personal!

    A collage is a creative work of art made by gluing down various materials such as paper, photos and fabric to a surface.

    There is no “right” way to do a collage, but here are a few ideas to consider:

    💡 Express an emotion, idea, or reflect a person or event that’s special to you.

    💡 Words matter! If your collage is mostly photos, any text you add will stand out.

    💡 Differences attract the eye. Help tell your story by contrasting light and dark, colors with neutrals, or small and large.

    💡 Collages are a fun way to express your thoughts visually. Bright yellow can express joy, blues often denote sadness or calm, while sharp angles and jagged lines can look angry and frustrated.

    🔺 Remember, you’ll be gluing down your photos so make copies of precious photos first. Once they’re glued, they’re staying there!

    Whatever you end up making, enjoy it because YOU made it! There is no perfection or judgment here. Congrats on completing it!