They are materials that help the fusion of siliceous sand which, otherwise, would have a very high melting point, around 1700c.
Usually sodium or potassium sulphates or carbonates are used. To start the melt the dry mixture is mixed with a certain amount of glass scrap (cotizzo).
Credits to: Parole di vetro - Marsilio editore ISBN 88-317-7198-1
Dejar un comentario
Todos los comentarios se revisan antes de su publicación.
Este sitio está protegido por hCaptcha y se aplican la Política de privacidad de hCaptcha y los Términos del servicio.