Kids and teens will love how cool this slime looks — and it only takes a few simple ingredients to make. The rich red really pops, especially against the clear glue base, and the final texture is smooth and stretchy without being too sticky. It’s perfect for sensory play, party favours, or just a rainy day craft. Let’s dive in and show you exactly how to make red slime step-by-step!
Helpful Tips:
What’s the best way to colour my slime red?
There are a number of options for how to make slime red. We used “brick red” food colouring in our red slime recipe, but you can experiment with other shades of red food colouring too. We also added mica powder to give some shimmer and add richness to the red colour. The shade of red slime you’d like to make will determine what you use to colour it. Liquid watercolour and acrylic paint are good options for colouring slime, but they made more of a pinkish red slime than the deep red we were going for. If you want a really deep red slime (more like burgundy or maroon), try adding a single drop of black food colouring. This gives your red slime a lot of richness and colour depth!
What glue is best for making bright red slime?
Both clear and white glue will work to make red slime, but we prefer using clear glue. When we want a specific colour for our slime it offers a blank canvas for the colour, resulting in a deep and rich shade. White school glue automatically makes the slime colour more pastel, because the colour is mixing with the white opaque glue. To make bright, vibrant colours of slime with white glue, you need to use a lot of food colouring.
What’s the best activator to use in my red slime recipe?
We prefer using contact lens solution to activate our slime recipes. It’s safe to use and gentle on skin. You need to use baking soda as well when using contact lens solution. The baking soda raises the pH levels and activates the borate component in the contact lens solution. You can also use a borax solution (usually made from 1 teaspoon of borax dissolved into 1 cup of hot water). You won’t need baking soda when using this activator, and you can add a tiny bit of activator at a time until you’re happy with your slime’s consistency. This activator is less expensive and it’s also more consistent, since you don’t have to worry about different brands containing different amount of boric acid and sodium borate. However, it can be harsher on your skin if used incorrectly or in high concentrations, which is why we prefer sticking to contact lens solution. This red slime recipe is such a fun and satisfying sensory craft, and it’s as pretty as it is playful! The bold colour and shimmer make it extra special, and it’s the perfect hands-on activity for Valentine’s Day, Christmas, or just for fun. Whether you’re new to slime or a seasoned slime-maker, this recipe is sure to become a favourite!
Here’s even more colourful slime ideas:
How to Make Rainbow Slime Green Slime How to Make Galaxy Slime
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