An independent reference guide to hand-moulding materials. It is not a shop, sells nothing and has no connection with the former website on this domain; before buying for a child, check the age shown on the pack.

Topics

Guide topics

The pages of this guide are arranged under four topics. The first explains what kind of material you are actually holding. The second covers how to keep it from drying out or getting dirty and how to avoid marks on furniture. The third is about children: age, small parts and magnets. The fourth is about what to do with putty and how to choose it as a gift.

The words "plasticine", "slime" and "thinking putty" are often used as if they mean the same thing. In fact they are different materials that need different care: what is good for one can harm another.

— Editor's note

The guide covers the questions that parents, teachers and adults who simply like squeezing something in their hands actually run into. Topics that call for a doctor or a chemist are mentioned, but not explored in detail.

Materials

How thinking putty, classic plasticine, slime and kinetic sand differ, and why each has its own character.

  • What is thinking putty

    Where the material came from, how it reacts to slow and sudden pressure, and its main varieties.

  • Glossary of properties

    Viscoelasticity, flow, bounce and the other words used to describe moulding materials.

  • Where the colours come from (in Russian)

    Pigments, pearlescent effects, colour-changing and glow additives, and why colours fade over time.

Care and storage

How to keep putty clean and springy, where to store it and what to do about stains on fabric.

Safety

The age on the pack, the "not in the mouth" rule, small parts and extra caution with magnetic putty.

  • Children and safety: Q&A

    Short answers about age, supervision, magnets and when to call your local emergency number straight away.

  • Labels in plain words

    What the age marking, the conformity mark and the warnings on a toy's packaging mean.

  • A child's first putty

    A collection of pages for parents choosing a moulding material for a child for the first time.

Activities and gifts

Ideas for games and modelling, plus tips on choosing a small gift without shop recommendations.

  • Practical

    How to store and clean thinking putty so it lasts, plus a catalogue of practical articles.

  • Questions

    Short answers about material properties, stains on fabric and child safety.

  • What is putty

    What thinking putty is made of, why it flows one moment and bounces the next, and how to look after it.

Sources and basis of this text

  • TR CU 008/2011 «On the safety of toys» (Eurasian Customs Union regulation, in force in Russia, Belarus, Kazakhstan, Armenia and Kyrgyzstan; other countries have their own toy-safety rules)
  • Manufacturers' instructions and labelling for moulding putties (general principles)
  • Materials on the safety of children's toys (general principles)

Ingredients, labelling and manufacturers' recommendations change over time, so the instructions and markings on the pack of the specific product are always your main guide. This reference explains general principles and does not replace a doctor's advice if something goes wrong.