Petar Написал:
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> Мedium Density Fiberboard
>
> technopipe - и с какво МДФ-а е по лош от
> талашитените врати в къщи дето вече 40 години не
> са мръднали ? Пак ще повторя viipeer - обоснови
> се.
> Много е лесно ей така да хвърлиш едно мнение в
> пространството...
Zdraveite...az za talashiteni nishto ne sum govoril i daje niama da gi sravniavam...
A mnenieto ne sum go hvurlil ei-tui...kakto mu se kazva.
Kato vijdam Vie razbirate angliiski , i zatova shte priloja maluk tekst koito da si prochetete i da vidite za kakvo stava vupros....
Chestno kazano temata e mnogo obshirna specialno za MDF, no az ne iskam da se zadulbochavam...
Drawbacks of MDF:
* Heavier than plywood or chipboard (the resins are heavy)
* Swells and breaks when waterlogged
* May warp or expand if not sealed
* Contains urea-formaldehyde which may cause eye and lung irritation when cutting and sanding
* Dulls blades more quickly than many woods
* Though it doesn't have a grain in the plane of the board, it does have one into the board. Screwing into the edge of a board will generally cause it to split in a fashion similar to delaminating.
* Subject to significant shrinkage in low humidity environments.
Disadvantages: -MDF can be dangerous to use if the correct safety precautions are not taken. MDF contains a substance called urea formaldehyde, which may be released from the material through cutting and sanding. Urea formaldehyde may cause irritation to the eyes and lungs. Proper ventilation is required when using it and facemasks are needed when sanding or cutting MDF with machinery. The dust produced when machining MDF is very dangerous. Masks and goggles should always be worn at all times. Due to the fact that MDF contains a great deal of glue the cutting edges of your tools will blunt very quickly. MDF can be fixed together with screws and nails but the material may split if care is not taken. If you are screwing, the screws should not be any further than 25mm in from the edge. When using screws always use pilot holes. Urea formaldehyde is always being slowly released from the surface of MDF. When painting it is good idea to coat the whole of the product in order to seal in the urea formaldehyde. Wax and oil finishes may be used as finishes but they are less effective at sealing in the urea formaldehyde
Uses: -It may be used to make display cabinets, wall-panels and storage units.
nadiavam se prostranstvoto da se e namalilo malko...
(sheguvam se, ne se zaiajdam)
