Backboard for open frame

[Sinerva10]

Hi

Im making frames for a school that want to display students work , the work will be changed every week.

A3 size internal , open frame no glass. What would you use as a backing for looks around boarder of the students work , and the durability that can take knocks , and pins etc ?

Advice all welcome

Thanks

Mike

[Justintime]

Painted cork if they want to pin the work?

[Sinerva10]

Would you use chalk paint ? Poster paint ?

[Justintime]

Anything you like with a coat or two of Polyvine dead flat matt over the top which will seal it.

[Jon_Brooke]

Sundeala board.

Recycled/recyclable, British made, traditional solution.