MEDIUM DENSITY FIBERBOARD (MDF)

Presented by:

CHE MOHAMAD AZRUL BIN CHE LAH (2012102157)

ZULKHANAIN BIN MAT ZAIN (2012146285)

MUHAMMAD ARBAIN BIN MAT YUTI (2012930753)

MUHAMAD AZLAN BIN ABDULLAH (2012349855)

IZZAH AZIMAH BINTI NOH (2012717865)

(MDF)

INTRODUCTION TO

MEDIUM DENSITY

FIBERBOARD

DEFINITION

Medium-density fiberboard (MDF) is a composite wood product

made of compressed wood fibres, mixed with wax and resin.

MDF is similar to particleboard and hardboard,it is known for

its strength, smooth surface and edges and affordable pricing.

MDF has many applications and various sizes and comes with

its share of advantages and disadvantages, and is overall a very

popular choice for many woodworkers.

CONT… Usually the panel will compressed to density of 0.5 to

0.8 specific gravity in a hot press.

 It varies in color from tan to chocolate brown.

Common thicknesses range from 1/4 in. to 1 in., but

most home centers carry only 1/2-in. and 3/4-in. Full

sheets are oversized by 1 in., so a “4 x 8” sheet is

actually 49 x 97 in. A full sheet of 3/4-in. 

MDF MANUFACTURING

FLOWCHART

TYPES OF MDF

EXTERIOR GRADE

INTERIOR GRADE

INTERIOR GRADE MDF

There are various types of MDF available. The

most common, and cheapest is standard interior

grade material.

This is suitable for most internal applications

where moisture is not a consideration.

EXTERIOR GRADE MDF

Other grades of MDF include Moisture Resistant for

use in areas of moderate moisture.

Exterior grade MDF can be used externally for

cladding or signage work.

For applications where weight is a prime consideration

other, lower densities of fibreboard are available.

APPLICATION OF MDF

Cabinet doors and drawer fronts

Internal cabinet carcasses

Display cabinets

Exhibition plinths

Lettering & Logos

Exterior signage

Exterior cladding

Boxes and casework

All types of furniture

ADVANTAGES

Less expensive than wood, easier to work with, more

uniform and more stable of a material.

Won't warp, check or crack and has no knots or surface

grain which makes it easier to cut, drill into, file or paint.

Can be painted to produce a smooth quality surface. Oil,

water-based paints and varnishes may be used on MDF

CONT… MDF may be dowelled together and traditional

woodwork joints may even be cut.

MDF may be glued together with PVA wood glue..

Veneers and laminates may also be used to finish

MDF

Big-dimensioned sheet, customer-required size.

CONT…

Stable quality from overall-controlled production, some

properties better than natural wood, such as water-proof,

fire-extinguishing, anti-pressing, less variability, etc.

 Product surface satisfies direct use's requirement, saved

much processing cost.

Solid interior property, constant quality in the

longitudinal and transverse direction.

DISADVANTAGES

Medium-density fiberboard is a heavier material

than most solid woods, and because it's so hard and

dense, MDF may dull saw blades and router bits

more quickly than solid wood.

MDF also causes potential problems if the edges

become waterlogged since the material will swell.

CONT…

There is a health danger from using MDF because most

MDF panels are made with resins that contain formaldehyde,

a suspected carcinogen. It is best to wear a respirator and

safety goggles and provide adequate ventilation when you cut

or sand MDF to avoid inhaling the dust.

The cutting edges of your tools will probably dull quickly

due to the glue fibres in the MDF.

THANK YOU