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General Description
PROMATECT®-L500 is a lightweight mineral matrix engineered board which is
off-white/beige in colour and has a smooth sanded surface on one face with a lightly honeycombed texture on the reverse face.
PROMATECT®-L500 is resistant to the effects of moisture and will not
physically deteriorate when used in damp or humid conditions. Performance characteristics are not degraded by age or moisture.
Untreated surfaces will absorb water which can cause some loss of strength but full strength is regained after drying. It will
not encourage mould growth and is resistant to attack by insect or vermin.
PROMATECT®-L500 is chemically inert and is resistant to dilute acids
and alkalis. Boards should be protected where high chemical concentrations are likely to occur.
A health and safety data sheet is available from the Promat Technical Department and, as with
any other materials, should be read before working with the board. The board is not classified
as a dangerous substance so no special provisions are required regarding the carriage and the
disposal of the product to landfill. They can be placed in an on-site skip with other general
building waste which should then be disposed by a registered contractor.
Typical Mechanical Properties
Modulus of elasticity, E
(BS EN 310: 1993) |
Longitudinal
Transverse |
N/mm˛
N/mm˛ |
|
1209
1667 |
Flexural strength, F rupture
(BS EN 310: 1993) |
Longitudinal
Transverse |
N/mm˛
N/mm˛ |
|
1.46
2.42 |
Tensile strength, T rupture
(BS5669: Part 1: 1989) |
Longitudinal
Transverse |
N/mm˛
N/mm˛ |
|
1.00
1.26 |
Compressive strength (average, perpendicular on board face)
(BS5669: Part 1: 1989) |
N/mm˛ |
|
4.04 |
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