Bluebay Building Products, are a leading supplier of BAG® Column Formers. BAG® Column Formers are a single use formwork system that gives an excellent smooth fair face surface finish. Their Column Formers are manufactured by welding together several layers of high quality polyethylene coated kraft paper, which are spirally wound and bonded together by heating the polyethylene. Once this step is complete, a water resistant foil is also spirally wound over the kraft paper, sealing the column against humidity. This manufacturing process requires no additional adhesives which reduces the wall thickness, making the BAG ® Column Formers light and easy to handle.

Advantages of BAG Column Formers:

  • – Light easy to handle as opposed to steel shuttering.
  • – Labour saving.
  • – Easy to strip, no mould oils required.
  • – Quality fair faced finish.
  • – Can be used for protective cover for the completed columns.

Installing BAG Column Formers:


BAG ® Column Formers are very light and can be transported without any handling equipment.

The tubes can be secured on the base using timber which is fixed to the floor or decking as required. The top of the tube can either be secured using timber or with our own tension belt system. When using our system you are able to fix three sloped bearings with a 120 degree angle. Normally two fixing points are sufficient at a 90 degree angle. If the Column Former is 7 metres or more we recommend that an additional fixing point is used at the middle point of the tube.