HMR V313 MDF

(High Moisture Resistant MDF) 

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Robin HMR V313 MDF (High Moisture Resistant Medium Density Fibreboard) utilises melamine urea formaldehyde resin to enhance its phycial properties to meet the stringent V313 cycli test, in order to provide a suitable product for use in high moisture conditions

Main Application : Kitchen cabinets, skirtings, mouldings, architraves, shelving, bathroom vanities and wash tub areas.

Not suitable for exterior application or exposure to water and prolonged high humidity such as saunas or shower cabinets.

Wet Cyclic Test (V313)

A Wet Cyclic Test (V313) consists of a three cycle accelerated ageing treatment followed by strength testing.

Conditioned test samples are immersed in water at 20 degrees Celsius for 3 days (72 hours), frozen at -12 degrees Celsius for 1 day (24 hours) and oven baked at 70 degrees Celsius for 3 days (72 hours).

This 3 days immersion, 1 day frozen and 3 days heated cycle is carried out 3 times (total 21 days) and then followed by post conditioning and physical testing based on test methods specified by EN 622.

Physical and Mechanical Properties of Standard Grade Rubberwood HMR MDF

     %

Board Property

Density

Board Moisture

Modulus of Rupture

Internal Bond

Screw Holding (Face) *

Thickness Tolerance

Screw Holding (Edge) *

Thickness Swelling **

Internal Bond ***

Thickness Swelling ***

Dimension (length/width) Tolerance

Squareness

Edge Straightness

Minor stains, fibre marks, scratch lines

Latex Spots

Size of Latex Spots

  Test

Method

   Unit

EN 322

EN 323

EN 324-2

EN 310

EN 319

EN 320

EN 320

EN 317

EN 321

EN 321

     N

EN 324-2

EN 324-1

EN 324-1

     N

N/mm2

N/mm2

N/mm2

kg/m3

     %

     %

     mm

 mm/m

 mm/m

740-760

690-730

660-700

730-750

  9

  15/18

 25

  12

 Range of Thickness (mm)

4 - 9

4 - 9

4 - 9

4 - 9

32

30

28

25

0.60

0.65

0.70

0.70

0.30

12

-

-

-

-

10

1050

8

19

1000

850

700

7

16

15

15

0.25

0.20

0.15

+/- 0.20

+/- 2mm/m ; maximum +/-5mm

2

1.5

Free on One Side

Not more than 5 spots

Not more than 6mm

   * Screw holding only for thickness 15mm and above

 ** 24 hours immersion in 20 (+/-1) degrees Celsius water

*** Changes after cyclic test (V313)