This table shows the quantities needed (with polyester resin and epoxy resin) depending on the stage and the size of the board. To be safe, you can slightly increase the quantities indicated.

Polyester

< 6'< 7'6"> 8'
Lamination700g1kg1.4kg
Hot coat350g500g600g

Epoxy

< 6'< 7'6"> 8'
Lamination650g850g1.25kg
Hot coat300g425g525g