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General Description
PROMATECT®-N is a non-combustible matrix engineered mineral board reinforced with selected fibres
and fillers. It is formulated without inorganic fibres and does not contain formaldehyde.
PROMATECT®-N is light beige or grey in colour and has a smooth finish on one face with sanded on the
reverse face. PROMATECT®-N provides an architectural surface ready to receive most forms of
decoration. PROMATECT®-N is suitable for internal and semi-exposed external non-loadbearing
applications such as ceiling linings, soffits, etc.
PROMATECT®-N boards are non-combustible, and can be worked in the same way as timber materials.
They will not rot or support the growth of mould, apart from not attracting pests due to their inorganic properties.
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˛ |
|
5000
4000 |
Flexural strength, F rupture
(BS EN 310: 1993) |
Longitudinal
Transverse |
N/mm˛
N/mm˛ |
|
9.5
6.5 |
Tensile strength, T rupture
(BS5669: Part 1: 1989) |
Longitudinal
Transverse |
N/mm˛
N/mm˛ |
|
4.5
3.0 |
Compressive strength (average, perpendicular on board face)
(BS5669: Part 1: 1989) |
N/mm˛ |
|
6.71 |
For PROMATECT®-N, the longitudinal direction is identical with
the direction of manufacture. In order to calculate permissible loading, application of the following values is recommended:
Flexion ≤ /250
Bearing safety factor ≥ 3 |
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In the following work sheets, certain makes of screws may be specified as being preferential in order to ensure a certain
level of quality of installation. The physical properties given in the tables are mean values given for information and
guidance only. If certain properties are critical for a particular application, it is advisable to consult your nearest
Promat Technical Department.
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