Hardboard

China Hardboard, masonite 4′ x 8′ sheets,hardboard siding,how to cut hardboard,what is tempered hardboard,masonite siding,hardboard panels,hardboard masonite,lowes hardboard,Chinese hardboard

Hard fiberboards are formed with fibre of wood and made by high pressure compression and temperature
during a pressing process. The high density boards satisfy the most demanding applications as a result of
tempering or other treatments that achieve great physical and mechanical characteristics and excellent
dimensional stability. Raw and lacquered hardboard panels are used in many applications including
construction, packaging, furniture, upholstery, door skins, toys, and automobile and caravan interiors.
NFB hardboard is required for packaging of fruits, vegetables and mineral water bottles because it is a
natural product.

The unique wet-process production system involved in the NFB hardboard manufacture assembles a
smooth side and a mesh pattern on the reverse – which is valued by the packaging industry as an anti-skid
surface. In addition, special NFB hardboard can be produced for roof underlay board applications with very
high resistance to humidity and water absorption.

NFB hardboard is available in a wide range of products and thicknesses to satisfy customer requirements
and is also used in highly specialized applications, including perforated boards for moulding. NFB producers
can offer customers additional special services including cut to size, and drilling and milling.

Hardboard (not to be confused with hardwood), also called high-density fiberboard (HDF), is a type of fiberboard, which is an engineered wood product. This product is also known under Isorel or Masonite brand names.cess

Light-colored, moisture-resistant hardboards are available in smooth, embossed or pre-finished faces. Cut-To-Size is also available.

First of all…what is Masonite?

Masonite is brand of hardboard that was invented in 1924 and was originally used for many construction applications. It is formed using the Mason method of compressing and blasting wooden chips with steam and then forming them into boards. No glue of other material is added. Only natural ingredients are used which makes it an environmentally friendly product.

Hardboard Applications

  • Cabinet components
  • Store fixtures and displays
  • Automotive interior components
  • Garage door panels
  • Decorative wall covers

Hardboard Dimensions

  • Nominal Thicknesses from 1/10″ to 1/4″
  • Widths 32″ and 48″
  • Lengths to 8 feet

General Steps

  • Hardboard manufacturing begins by softening wood chips in a pressurized steamer and grinding them into fibers. The fibers are mixed with resin, formed into mats and hot pressed to make panels. The panels are heat treated and undergo humidification, a process that adds moisture to prevent warping, before being finished and packaged for shipment.

Wood Types

  • Woods commonly used for manufacturing hardboard include hardwood and softwood species. The Environmental Protection Agency, or EPA, lists aspen, beech, birch, maple and oak wood chips as common hardwoods. Softwood use is typically limited to pine.

Processing Methods

  • Hardboard is manufactured using one of three processes: wet processing, dry processing or wet/dry processing. Wet processing uses wet wood fibers to form wet mats for pressing. Dry processing uses dry fibers to form dry mats for pressing. Wet/dry processing forms wet mats that are dried before pressing. Unlike wet and dry processing, wet/dry processing does not use resin.

Hardboard is similar to fiberboard, except that hardboard is more dense than fiberboard. Hardboard is used for applications in housing (e.g., exterior siding, garage doors, and interior door facings), furniture, store fixtures, automotive interiors, and toys. The most frequently used raw material for production of fiberboard products is wood chips which are first softened in a pressurized steam vessel (digester) and then refined or pulped into wood fibers. The fibers may then be mixed with resin, formed into mats, and pressed and/or dried to form panel products. Other materials may be added during manufacture to improve certain properties such as stiffness, hardness, finishing properties, resistance to abrasion and moisture, as well as to increase strength, durability and utility. Hardboard products are manufactured through dry processing, wet processing, or wet/dry processing. Fiberboard products are manufactured by wet processing. Dry processing involves dry mat forming and pressing, while wet processing involves wet forming and wet pressing. Wet/dry processing involves wet forming followed by dry pressing. Resin is used in wet hardboard and dry hardboard processing. Resin is not used in wet/dry hardboard or wet fiberboard processing

Thin, stiff board, made of compressed sawdust and woodchips which have been reduced to a pulp and then reconstituted. Hardboard panels have one smooth and one mesh-like surface, both of which can be used to paint on

Similar to particle board and medium-density fiberboard, but is denser and much stronger and harder because it is made out of exploded wood fibers that have been highly compressed.

  • Hardboard
  • Sawn and planed
  • FSC certified
  • PEFC 

Standard Hardboard 3.2 x 1200 x 2440mm 

Hardboard Standard Panel 3x610x1220mm

Process Description1 – Hardboard products are manufactured through dry processing, wet processing, or wet/dry processing. Fiberboard products are manufactured by wet processing. Dry processing involves dry mat forming and pressing, while wet processing involves wet forming and wet pressing. Wet/dry processing involves wet forming followed by dry pressing. Resin is used in wet hardboard and dry hardboard processing. Resin is not used in wet/dry hardboard or wet fiberboard processing. The following sections summarize dry process hardboard manufacturing, fiberboard and wet process hardboard manufacturing, and the wet/dry hardboard manufacturing process. Dry Process Hardboard – The general steps used to manufacture dry process hardboard include mechanical pulping of wood chips to fibers (digesting and refining), blending of fibers with resin and wax, drying, forming the resinated material into a mat, hot pressing, heat treatment of the pressed boards, and humidification. Figure 10.6.4-1 presents a flow diagram for dry process hardboard manufacturing. The primary raw material used in hardboard is hardwood or softwood chips. In addition to wood chips, shavings or sawdust may be used as a raw material. If wood chips are prepared onsite, logs are debarked, cut to manageable lengths, and then sent to chippers. If necessary, the chips are washed to remove dirt and other debris. Clean chips are either processed in pressurized refiners or are softened by steam in a digester and sent to atmospheric refiners. Pressurized refiners consist of a steaming vessel (digester) and of single or double revolving disks to mechanically pulp (refine) the chips into fibers suitable for making the board. The wood chips are discharged under pressure from the digester section of the pressurized refiner into the refiner section. The steam pressure is maintained throughout the entire refining process. Atmospheric refiners also use revolving disks to pulp the chips into fibers, but steam pressure is not maintained in atmospheric refiners. Wax may be added to the wood chips in the digester. Phenol-formaldehyde (PF) resin and other additives (if used) are added to the wood fiber during or immediately following refining. Most dry process hardboard plants inject PF resin into a blowline that discharges the resinated fibers to a tube.

Wet Process Fiberboard – The general steps in production of fiberboard manufacture include pulping of hardwood or softwood wood chips, wet forming, drying, and finishing. Fiberboard may be manufactured with bagasse or other agricultural fiber instead of wood fiber. The bagasse fiberboard manufacturing process is generally the same as the wood fiberboard manufacturing process. Figure 10.6.4-3 presents a flow diagram for wet process fiberboard manufacturing. The discussion below focuses on the wood fiberboard manufacturing process.