1. Lay out a drop-sheet or newspapers on a flat surface in your work area.
2. Lay your red A1 card down on top.
3. Spray the red A1 card with glue, taking care not to overspray.
4. Centre the white foamboard on top of the A1 card and press down. Use weights like phone books to lay on top to help apply even pressure.
5. Leave to dry.