Sourcing modelling clay and play dough

0% duty

Read from the UK Trade Tariff on 26 September 2026, modelling pastes including those put up for children's amusement, dental wax and dental impression compounds put up in sets or retail packings, and other plaster-based preparations for dentistry carried 0% duty on goods from China, with no anti-dumping measure. Oven-hardened polymer clays may classify with plastics and ceramic clays with minerals, so confirm the commodity code.

Toy safety and chemicals

Play dough and modelling clay for children under 14 are toys under the Toys (Safety) Regulations 2011, so they need UKCA or CE marking, a declaration of conformity and the applicable conformity assessment to demonstrate compliance with the essential safety requirements. Testing to the relevant EN 71 standards, including EN 71-3 for migration of heavy metals, is a common route to demonstrating compliance. The regulations also limit preservatives such as methylisothiazolinone and chloromethylisothiazolinone in aqueous toy materials, which is where many water-based doughs fail.

Doughs made with wheat flour need a gluten allergy warning, since children may eat them, and small tubs and accessories need age warnings for under-threes. Dental waxes and impression materials sold for clinical use are medical devices under the Medical Devices Regulations 2002.

Worked duty example

For a made-up shipment of 100,000 tubs of play dough under 3407 00 00 00, add the £2,500 of freight and insurance to the £20,000 free-on-board price and customs sees £22,500. Duty on modelling pastes is zero, leaving import VAT of £4,500, 20% of the customs value. For a VAT-registered buyer that is a cash-flow cost rather than a lasting one. The duty and VAT guide walks through the calculation.

Inspection checklist

Chemical tests per colour: every colour tested at an accredited laboratory for element migration to BS EN 71-3 and for the preservatives restricted in aqueous toy materials under the Toys (Safety) Regulations 2011, since one colour can fail while the others pass, with the report matched to the batch shipped.

Preservation and drying: a preservative efficacy challenge test by a method such as ISO 11930 on the dough base, sealed tubs stored warm for several weeks to check for mould and weight loss, colour transfer checked on skin and white fabric, and air-dry and polymer clays cured to the instructions to check cracking and hardness.

Physical safety and labels: tubs, lids, cutters and moulds checked against the small parts and sharp edge tests of BS EN 71-1 for the age grade claimed, UKCA or CE marking, age warnings, the gluten warning for wheat-based dough and the UK address checked on every pack variant, and cartons sampled to ISO 2859-1.

What goes wrong

Modelling pastes fail on preservatives, microbes and drying. Dough with too little preservative grows mould in the tub, while too much of a restricted preservative fails the toy limits, colours stain hands and fabrics, and tubs dry out because lids do not seal. Air-dry clays crack as they dry, polymer clays burn or stay soft at the stated oven temperature, and sets arrive without age warnings or allergen information.

Test samples in an accredited laboratory to EN 71-3 and for restricted preservatives, run a microbiological or storage test for mould, check colour transfer onto skin and fabric, check lid seal and moisture loss over time, test drying and curing against the instructions, and check toy markings, age and allergen warnings on every pack.

Cambridge China Bridge sources play dough, modelling clay, air-dry and polymer clays and craft sets, with toy testing and preservative checks agreed before production. See how we source toys and crafts.