Easy Two-Ingredient Slime with Glue and Contact Solution
Making stretchy slime at home does not require a long shopping list or complicated equipment. With washable white school glue and the right contact lens solution, you can create a soft, squishy craft material in just a few minutes.
This simple slime recipe is a fun rainy-day activity for children, families, and beginner makers. The mixture changes from a liquid into a stretchy, moldable texture as the contact solution activates the glue.
Although the ingredient list is short, the type of contact solution matters. Read the label carefully, work on a protected surface, and supervise young children throughout the activity.
Gather materials for the project
You will need washable white PVA school glue and contact lens solution. The solution must contain boric acid or sodium borate because these ingredients help turn the glue into slime. Some brands contain neither, so check the ingredients before starting.
Use a small bowl, a spoon or craft stick, and a measuring spoon. A silicone mat, tray, or sheet of wax paper can protect the work surface from sticky residue. Optional food coloring or washable liquid watercolor can add color, but the basic recipe works without it.
A resealable plastic container or airtight jar is useful for storage. Keep the finished slime separate from food containers and label it clearly if several craft materials are stored in the same area.
Choose the right glue and solution
Washable white school glue is usually the easiest option because it contains PVA and produces an opaque, classic slime. Clear school glue can also work, giving the finished project a glassier appearance, though it may need extra resting time for bubbles to disappear.
Contact solution is not interchangeable with every eye drop or saline product. Look for boric acid or a borate ingredient on the label. A solution labeled only as saline may not activate the glue effectively.
The proportions below make a small batch. Use a clean spoon for measuring, and avoid adding a large amount of contact solution at once. Too much activator can make the slime firm, rubbery, or prone to breaking.
| Material | Amount | Purpose |
|---|---|---|
| Washable white school glue | 120 ml, or ½ cup | Forms the stretchy slime base |
| Contact lens solution with boric acid or borate | 1–2 tablespoons | Activates the glue |
| Food coloring, optional | A few drops | Adds color |
| Bowl and mixing tool | 1 each | Combines the ingredients |
| Airtight container | 1 | Keeps the slime from drying out |
Mix the two-ingredient slime
Pour the glue into a bowl. If you want colored slime, stir in a few drops of food coloring before adding the contact solution. Mixing the color at this stage helps prevent streaks and keeps the final texture even.
Add one tablespoon of contact solution and stir slowly. The mixture will begin to thicken and pull away from the sides of the bowl. Continue stirring for another minute, then add a little more solution only if the mixture remains very wet and sticky.
When the slime gathers around the spoon, lift it out and knead it with clean hands. At first, it may cling to your fingers, but kneading helps the ingredients combine. Work it for two to five minutes until it becomes smoother and stretches without immediately falling apart.
If the mixture still feels sticky after kneading, add contact solution one drop or one quarter teaspoon at a time. Knead between additions. Small adjustments are better than pouring in a large amount, since overactivated slime is difficult to soften.
Adjust the texture without wasting the batch
Freshly made slime can feel different depending on the glue brand, room temperature, and contact solution formula. A slightly sticky texture is often easier to correct than a stiff one. Let the slime rest for a few minutes, then knead it again before deciding whether it needs more activator.
If the slime sticks heavily to your hands, coat your hands with a tiny amount of contact solution and continue kneading. You can also work it on a clean, lightly protected surface. Avoid adding flour, water, or cooking oil, as these can change the texture and shorten its useful life.
If the slime is tough, snaps quickly, or feels like rubber, it likely has too much contact solution. Knead in a small amount of fresh glue. Add it gradually until the slime becomes softer and more elastic.
Cloudiness and air bubbles are normal, especially with clear glue. Place the slime in its container and leave it undisturbed for several hours. Many bubbles will rise and disappear as the slime settles.
Keep playtime clean and safe
Adult supervision is important, particularly for toddlers and children who may put craft materials in their mouths. Slime is a sensory craft, not a food product, so keep it away from snacks, dishes, and kitchen preparation areas.
Wash hands before and after play. Do not use slime on carpets, upholstered furniture, unfinished wood, or clothing, since glue and coloring may leave stains. A tray or washable table covering makes cleanup much easier.
Stop using the slime if it causes skin irritation. Children with sensitive skin may prefer to wear disposable gloves while mixing. Contact solution should never be poured into the eyes or used as a substitute for the finished slime.
Store the batch in an airtight container at room temperature. Discard it if it develops an unusual smell, visible mold, excessive dirt, or a change in texture. Homemade slime is best treated as a short-term craft and should not be shared between children.
Make the activity more creative
A simple batch can become a colorful sensory project with a few child-friendly additions. Mix colors separately and twist them together for a marbled effect, or divide the slime into small portions for a rainbow set.
Fine glitter, foam beads, and large confetti pieces can add texture, but choose materials that are suitable for the child’s age. Avoid tiny decorations around children who still explore objects with their mouths. Liquid color is usually easier to blend than dry powders.
Try making slime for a themed party, classroom craft table, or rainy afternoon activity. Small portions in labeled containers can become take-home favors. Pair the slime with a paper label, a playful name, and simple care instructions.
Practical tips for a smoother project
- Measure the glue and contact solution instead of estimating.
- Check that the contact solution contains boric acid or sodium borate.
- Add the activator gradually and knead before adding more.
- Protect the work area with a tray, silicone mat, or washable covering.
- Store the finished slime in an airtight container and wash hands after handling.
With just glue, suitable contact solution, and a little patience, you can create a stretchy homemade toy that is easy to customize. Set out the materials, invite the family to choose colors, and enjoy making a batch of slime together.