Masonite - standards and specifications of building material

Entitled "canvas" is meant a finishing material.Its structure - wood-fiber, hard enough.Sometimes colloquially referred to as soft and plates.But still a good use of this term is in relation only to plates and sheets of solid.Masonite can be used, for example, in the manufacture of furniture, packing, door trim openings.Product tiled "format" is used for decoration of ceilings and walls of buildings to Coanda floors.Better known this stuff like fiberboard.But the sheet product similar to plywood.

feedstock for the production of hardboard are waste from the processing of wood (chips, sawdust, fine wood chips).hot-pressing method of all this (properly prepared) mass is converted to construction and decoration material.The technology provides protection against moisture, fire, rotting.For this purpose, various additives are added to the raw material (fire retardants, antiseptics, rosin, paraffin).To increase the strength of the material and it is subjected to further impregnation with a special substance - pectolite.

One side of the finished hardboard can be "rough", and the other - smooth.Such hardboard used where provided by gluing mounting technology."The rough" surface provides a more reliable coupling between the bonded materials.However, the product is available and with two smooth sides.One often laminated (coated with a protective film).

standards and labeling hardboard

There are certain standards for the sheets of hardboard.Length -. In the range from 1.2 m to 6 m and a width of 1 m to 2 m The most popular are sheets with dimensions of 2750 x 1220 and 2140 x 1220 (mm).

thickness is different:

• 2;
• 5;
• 3,2;
• 4;
• 5;
• 6;
• 7 (mm).

buying material, you need to look at his mark.GOST 4598-86 (the name "canvas" in it, there is fiberboard) divides the product depending on the characteristics of the brand.Here are some of them:

1. T - solid;
2. CT - high strength (superhard);
3. STS - it is the same, only with a refined face (coating layer);
4. NT - low hardness (semi-solid).

When selecting hardboard should be considered, for what purpose it will be used.If the material is needed, for example, for rough processing surface, it makes sense to buy a cheaper version (less than solid brand).For the exterior finish is better suited laminated hardboard, although it is more expensive.

If it is necessary to stick, it should be guided by such recommendations on the application of adhesive:

• for concrete and plastered surfaces - mastic diphenol or coumarone;
  for timber structures - Casein adhesives, carpenter;mastic rosin or casein.