Binderless Fiberboard from Two Different Types of Fiber Furnishes

Fiber furnishes from two commercial processes were used to make experimental hardboards by all four possible methods: wet formed (pressed dry and wet), and dry formed (pressed dry and wet). Since no adhesives were added, all bonding was due to natural agents. Results of mechanical and physical testing of the hardboards indicated that high quality hardboard can be made from binderless, ovendry furnish and that the pulping conditions are more critical with regard to board quality than are pressing conditions (wet or dry).

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