Crystal clear, transparent putty. Invisible slime. It looks like liquid glass that can be stretched, bounced and moulded.
For ages 3+
Conforms to EU safety standards. Watch out for cheap brands that aren’t CE marked.
60g of crystal clear putty in storage tin.
Our putties are unusual materials that are liquids that flow slowly but act like a solid when a a strong force is quickly applied to them. When dropped on a hard surface they will bounce like rubber. When left to sit they will melt into a puddle. If you pull on them hard they will snap in two but if you pull on them gently they will slowly stretch.
Top tip: in the unlikely event that slimes or puttys get into clothes, carpets, hair or fur they are not soluble in water but they are soluble in alcohol. Use white spirits, rubbing alcohol or alcohol-containing hand sanitiser to clean them up.
Interested in innovative and unique fun science products? Take a look at our incredible series of science kits