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General Description
PROMATECT®-L is a lightweight mineral matrix
engineered board which is white in colour and has a smooth sanded surface on one face with a lightly honeycombed
texture on the reverse face.
PROMATECT®-L 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®-L 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˛ |
|
898
802 |
Flexural strength, F rupture
(BS EN 310: 1993) |
Longitudinal
Transverse |
N/mm˛
N/mm˛ |
|
1.93
1.63 |
Tensile strength, T rupture
(BS5669: Part 1: 1989) |
Longitudinal
Transverse |
N/mm˛
N/mm˛ |
|
0.69
0.94 |
Compressive strength (average, perpendicular on board face)
(BS5669: Part 1: 1989) |
N/mm˛ |
|
3.90 |
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