Accidental Discovery in a Leicester Lab
Blu Tack, the ubiquitous blue putty used across the UK for sticking posters, fixing wobbly furniture, and holding tape measures, was invented by accident in Leicester in 1969. A laboratory researcher at the Bostik factory was attempting to create a new moldable bathroom sealant but instead produced a "big, slightly sticky, white glob" that initially seemed useless.
According to Annabel Port, founder of TikTok's 'Other British Museum', co-workers took a liking to the substance and began using it to stick up notes—before Post-it notes existed. The product caught the attention of a Bostik executive, who saw potential as an alternative to drawing pins.
The Reason for the Blue Colour
However, there was a concern: children might mistake the white sticky material for chewing gum. To avoid this, Bostik dyed it blue. As Port explained, "They didn't have Hubba Bubba Sour Blue Raspberry back then!" This decision gave Blu Tack its iconic colour and reassured parents that it was not edible.
From White Glob to Household Name
Bostik notes on its website that initial reaction was poor due to lack of awareness of the product's potential uses. Through TV advertising and word of mouth, Blu Tack quickly entered the growth phase of its life cycle. Today, it is described as a heritage brand, illustrating Bostik's philosophy of creating smart, multi-functional adhesives for consumers.
Public Reaction and Legacy
One TikTok user admitted: "Almost 35 years on this earth, born in Leicester not knowing Blu Tack was invented here." Another added: "Makes sense, there's very little blue food. And not much blue in nature. Nice colour though." A third confessed: "I never realised this came from my home town!"
Port concluded by labelling Blu Tack an "unsung hero of Britain". The product remains a staple in homes, schools, and offices, with its distinctive blue colour now instantly recognisable.
