advancedecorativelaminate

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Features of Block board that defines it as the best

Block board is one type of engineered compound plywood board where softwood strips are joined edge to edge and bonded together machining often a sandwich structure placing hardwood between them. Block board is usually found in different sizes and thickness. 2440 x 1220 x 30mm is the normal size of block board.

Technical Properties of Blockboards Modulus of elasticity long Density Bending strength Bending strength cross Formaldehyde emission Modulus of elasticity cross Fire safety category Thickness tolerance Length and width tolerance Types of Blockboards The classification of block boards depend on different properties such as quality, use, raw wood used for the core. Followings are the type of blockboard:

Depending on quaity and use: Interior Grade Blockboard Exterior Grade Blockboard Depending on the raw wood used in the core: Softwood Blockboard Hardwood Blockboard Different aspects of these types are briefly discussed below:

Interior Grade Blockboard These grades are made for indoor uses which are resistant to moisture and called MR (Moisture Resistant) eg. Furniture, door, window shutter.

Exterior Grade Blockboard This variety of blockboard is manufactured for outdoor uses. These are called BWP (Boiling Water Proof) or as BWR (Boiling Water Resistant). This high quality of resistance is because of the adhesives used here are also good in quality.

Softwood Block board Solid blocks of wood are used to make each blockboard sheet those are attached together using glue. The sheets are called strips or battens. The surface is covered with hardwood veneers.

Hardwood Block board Hardwood is dense, heavy, costly, strong as the core is made from hard sheets. The coating is also by hardwood.

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