QSB Construction Board

Characteristics

QSB (Quality Strand Board) is a high quality single-layer particleboard made of specially sorted chips to guarantee compactness and high density of the board across its entire thickness. Humidity resistant MUF adhesives are used in the board production process. QSB CONSTRUCTION BOARDS meet the requirements set out in standard STN EN 312, type P5 for load-bearing boards used in humid conditions.

Usage

BUILDING AND CONSTRUCTION APPLICATIONS:

• load-bearing wall or roof sheathing
• ceiling construction shutters
• subfloors and bearing plates in flooring systems
• internal non load-bearing wall and ceiling sheathing, panels
• roof superstructures
• fencing around a construction site
• shuttering: sacrificial shuttering, foundation shuttering, prefabricated elements shuttering, etc.

 

FURNITURE MAKING APPLICATIONS:

• sheathing in rooms with increased humidity
• frames for upholstery, doors and windows

 

PACKAGING INDUSTRY:

• sheathing and manufacturing of transportation boxes, packages, and containers with high technical load-bearing and shock-proofing requirements
• manufacturing of shelves and racks

Technical parameters

Standard dimensions: 2500 x 1250 mm
Maximum dimensions: 5600 x 2500 mm
Thickness: 7/8/10/12/15/18/22 mm

General requirements for particleboards according to STN EN 312

Property	Testing method	Requirement
Dimensions tolerance – thickness, unsanded board	EN 324-1	- 0,3 mm , +1,7 mm
Dimensions tolerance – length and width	EN 324-1	± 5 mm
Tolerance edge straightness	EN 324-2	1,5 mm/m
Tolerance rectangularity	EN 324-2	2 mm/m
Moisture content	EN 322	5 % – 13 %
Tolerance of density considering the density inside the board	EN 323	± 10 %
Formaldehyde content (perforator method)	EN 120	class E1 max. 8mg/100 g

Technical requirements for particleboards according to STN EN 312

Property	Testing method	Thickness (mm)
		>8 - 13	>13 - 20
Bending strength in both directions	EN 310	18 MPa	16 MPa
Bending elasticity module in both directions	EN 310	2550 MPa	2400 MPa
Internal bond	EN 319	0,45 MPa	0,45 MPa
Internal bond – after boiling test	EN 1087-1	0,15 MPa	0,14 MPa
Internal bond – after cyclic test	EN 321	0,25 MPa	0,22 MPa
Thickness swelling – after 24 hours	EN 317	11 %	10 %
Thickness swelling – after cyclic test	EN 321	12 %	12 %