Pressing of Three Layer Dry Formed MDF with Binderless Hardboard Faces

Severely cooked Masonite pulp was used as face material in three layer experimental medium density fiberboard (MDF). The core layer consisted of conventional MDF furnish with resin binder added. The faces were formed absolutely dry without additives of any kind. The three layer mat was hot pressed to overall densities ranging from 44 to 56 pcf. The faces had hardboard-like density, appearance, and characteristics. Face characteristics controlled overall bending strength and bending stiffness. Core characteristics controlled water absorption and linear expansion. This separation of characteristics into face and core allows flexibility in board design.

You must be logged in to download any documents. Please login (login accounts are free) or learn how to Become a Member