Properties:

• GYP Accelerator additives are used to obtain faster setting times needed due to faster line speeds.
• Gypsum crystals initiate the gypsum crystal growth (seeding effect)
• Common sulphate ions will also promote the reaction:
  • Ca++ + SO-- 4 + H2O => Gypsum (CaSO4, 2 H2O)
  • Setting (= time, specific to the couple line length / speed):
    • Initial set (Knife set, stiffening time): optimum 20’’ to 40’’
    • Final set (shore A, thumb, Gilmore, thermal), hydration at the knife 55 to 75%
  • Hydration in the board core after drying must be > 95 %
    
  • By using this product you can reduce the soft board rejection and increase the line speed.