Johnstone's Trade has presented two large pieces of original art to schoolchildren from Heaton Avenue Primary School in Cleckheaton as a thank you for their help with a national exhibition.

Large boards painted with Johnstone's latest R&D project - a cleanable, stain-resisting matt paint product currently under development - were taken to the school where pupils spent a colourful afternoon covering them over with children's paints in a variety of colours.

The boards were then taken to the UK's leading independent design festival, Clerkenwell Design Week in London, where visual artist Anthony Donnelly set out to prove that coatings innovation isn't just a science – it's an art. He removed sections of the children's poster paint using 'reverse graffiti' techniques to demonstrate the cleanable quality of the product and create stunning new artwork in the process.

Visitors to the Johnstone's Trade Detail Pavilion stand were impressed by the ease with which Anthony was able to clean the poster paint back to reveal the hardwearing wall paint beneath, and delegates were also invited to test the paint themselves using ketchup, coffee, lipstick and felt pens to stain the boards before cleaning them again.

To celebrate the success of the exhibition, Johnstone's took the striking artworks back to Heaton Avenue, to thank the children for the vital role they played in the creative process.

Helen Tiplady, specification marketing manager at Johnstone's Trade, said: "Clerkenwell Design Week was a roaring success for Johnstone's, and the colourful artwork that the Heaton Avenue pupils helped to create was right at the heart of our stand.

"We are always keen to work with young people and to help to nurture a passion for creativity, art and colour. The process is always hugely rewarding, and we felt it was only right to take these wonderful creations back to the start of their journey. We hope the school and its visitors will enjoy looking at them as much as the children enjoyed making them."