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In Reply to: If MDF is unstable, What About OSB? posted by Mike Porper on February 27, 2015 at 12:42:41:
It does not creep, the reason MDF creeps because the resins used to bind the saw dust remain in a viscous state. OSB may be crumbly, but it does not creep because there is enough friction between the strands to hold it together. Saw dust just does not stick together well enough, as a result the only "strength" MDF has is from the glue, which is in a permanent viscous state. This is the exact reason you would not want to glue veneer with PVA or urethane glue, it will move on you over time. if you would take a chunk of cured resin used in these products and placed a large heavy object onto it, it would slowly sink into the resin.
dee
;-D
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Follow Ups
- OSB is actually more stable than MDF - Penguin 15:19:34 02/27/15 (9)
- RE: OSB is actually more stable than MDF - monoplinth 17:56:03 02/27/15 (2)
- Yup that does it - Penguin 13:53:05 02/28/15 (1)
- RE: Yup that does it - monoplinth 16:19:50 02/28/15 (0)
- RE: OSB is actually more stable than MDF - monoplinth 16:35:10 02/27/15 (0)
- Interesting - And Yet MDF is the Choice Material for Speakers - Mike Porper 16:17:26 02/27/15 (4)
- MDF--I hate it, hate it, hate it. . . . - risabet 15:50:36 02/28/15 (2)
- Only good if you paint it - Penguin 17:57:14 02/28/15 (0)
- RE: MDF--I hate it, hate it, hate it. . . . - monoplinth 16:17:50 02/28/15 (0)
- speakers are not like shelves - Penguin 13:54:38 02/28/15 (0)