FIR Edge Glued Solid Panel
Solid single layer wood board made up of pieces of wood (strips) glued together edge to edge and or on edge based on an aqueous dispersion-based adhesive of polyvinyl acetate. The manufacturing process is completed by longitudinal cut of the piece to normalized length in addition to the item’s sanding. The international term that used is the acronym SWP (S = solid; W = wood; P = panel).
Appearance
B/B Grade: both faces have live knots (not dead ones), that in no case will result in breakage or cracking of the strips.
Names
- Scientific name: Picea abies Karst
- Common name: White Fir
Physical Properties
- Grain: Straight or slightly spiralled
- Defects: Abundance of small ones and occasionally protruding
- Texture: Medium to coarse
- Scent: Slightly sappy
- Moisture content: 10 %
- Thermal conductivity: 0,039 λ (W/mK)
- Nominal density: 430 Kg/m3
- Permeability: Retention > 200 kg/m3
- Shrinkage coefficient: Volumétrica (12,1 %); Tangencial (8,3 %); Radial (4,1 %)
- Durability: Category 5
Taxonomic Description of the Wood
- Domain: Eukaryota
- Kingdom: Plantae
- Division: Pinophyta
- Class: Pinopsida
- Order: Pinales
- Family: Pinaceae
- Genus: Abies
- Species: Alba
Mechanical Properties
- Janka Hardness: 1420 N
- Modulus of rupture: 710 Kg/cm²
- Modulus of elasticity: 110000 Kg/cm²
- Compression resistance: 450 Kg/cm²
Colour
- Alburnum: White – pale yellow
- Duramen: Yellow – which can become reddish in tone
- Knot: Light chestnut-brown
Dimensions (measurement values are indicated in mm)
- Lenght: 2500
- Width: 1220
- Thickness: 10 – 16 – 18 – 22 – 25 – 30 – 40
Consult other measurements
Applications
In accordance with The Spanish Association of Standardisation, the edge glued fir panels are classified as follows:
- Regarding the conditions in which it is utilized: SWP (1= dry )
- Regarding its mechanical properties: SWP 1 NS (NS= non- structural, non-structural application)
Workablilty
- Cutting: Easy
- Drying: Fast, however the staining may be uneven
- Planing: Easy
- Gluing: Easy
- Nailing and screwing: Easy, although with a tendency to splinter
Conservation and Storage
Our experience with Fir and the edge glued panel made of this raw material allows us to know the possible modifications or damage that the product might suffer in the event that a series of recommendations regarding basic conservation and storage were not taken into consideration to preserve its durability and stability.
In wanting to avoid warping of the panel or edging of the strips that are at the edges we suggest the following recommendations:
- Do not subject the plank to sudden temperature and or moisture changes. Wood is sensitive to variations in the stability of the atmosphere surrounding it.
- Avoid storing the panels of wood in direct contact with floors and walls.
- Keep the original packaging, which were provided with the goods whether it be one by one or altogether, avoiding contact with the atmosphere for a prolonged period of time if the goods have not been rearranged or moved from the initial positioning – once the piece which is going to be put to use has been removed.
- Apply varnish, lacquer, paint or similar chemical treatment or equivalent that enhances the resistance of the panel/board and is not incompatible, in accordance with the fact sheet provided by the manufacturer, with the wood in itself or the adhesive used to glue.
