Introduction
WeatherPro-S is a flat external grade high
quality building board for heavy-duty commercial and industrial
use, such as train station or airport. The board is made
of non-combustible raw materials and has undergone an extremely
high pressure pressing process. thus, making WeatherPro-S
inborn with good strength and good resistance to impact.
It is designed for use in external applications or internal
applications where high resistance to impact damage and
weather resistance is required. It is economical and durable
when comparing with traditional plywood, MDF board or chip
board for similar applications. The board is manufactured
to ISO 9001 quality management system and has obtained the
Green Label Award issued by National Environmental Protection
Bureau.
Description
WeatherPro-S is a highly compressed
high density calcium silicate board reinforced with selected
fibres. It is formulated without asbestos or any other inorganic
fibre. Its manufacturing process is pollution-free and hence
the product is a green construction material. WeatherPro-S
composes of calcium silicate matrix, reinforced fibres and
synthetic cement silicate binder. It has undergone a high
pressure pressing process together with an autoclave process
where steam under high pressure is injected for curing.
The synthetic cement silicate binder provides exceptional
dimensional stability and an unrivalled resistance to movement
due to effects of moisture or heat. The board will not rot
or support fungal growth and is unaffected by sunlight and
steam. The board does not contain any soluble ingredients
or free alkali which could be dissolved out by moisture
or condensation causing unsightly marks. The board is watertight
and fully weather resistance and its performance will not
degrade in its lifetime when properly installed, WeatherPro-S
is light grey in color and has smooth surface on both sides.
It can be left undecorated or can be easily decorated with
paints or other external applied finish, alkali-resisting
primer are not required. WeatherPro-S can be used as furring
or left-in formwork for reinforced concrete construction
or as a permanent lining board for metal cladding. The unique
characteristic of high density autoclaved calcium silicate
means that WeatherPro-S is by itself moisture tolerant,
it is tough, durable and resistance to impact damage and
is commonly used in areas where permanent damp or high humidity
are anticipated such as washrooms, kitchens, food factory
or external locations.
Size & Manufacturing Tolerances
| Thickness |
3mm ~ 30mm |
| Width |
900/1220mm |
| Length |
1800/2440/2700/3000mm |
**Other sizes are also available
and can be produced to special order
|
| Length tolerance |
+/- 5mm |
| Width tolerance |
+/- 5mm |
| Thickness tolerance |
+/- 0.3mm |
| Diagonal tolerance |
+/- 5mm |
|
Specific Performance
Density
|
Density (under EMC condition) |
1700 kg/m3 +/- 5% |
| Surface Alkalinity |
PH Value |
PH 7-10 |
Strength
|
Modulus of Elasticity
Longitudinal Bending Stress
Transverse Bending Stress |
15000 N/mm2
35 N/mm2
25 N/mm2 |
Fire performance |
Non-combustibility
resistance to continuous heating |
BS476: Part 4
ISO 1182:1990
GB8624-1997, Grade A
80 degree C |
| Effect of rain |
Non-permeability |
No leakage after 6 hours of
continuous water spray at 0.5litre/mintues
Under 250Pa pressure |
| Effect of Moisture |
Water content (after air-dry)
Moisture movement
(from dry to saturated) |
5%
1.8 mm/m |
Thermal |
Coefficient of thermal
expansion
(-20~+80°C)
Coefficient of thermal Conductivity |
1.0x 10-5 M/m.k
0.30 W/m.k |
| Anti-freeze |
25 cycles of freezing-melting
(-25~+25 degree C) |
No damage or delanmination |
Specific Properties
 |
High impact resistance |
 |
Acoustic insulation |
 |
Weather resistance
|
 |
Easy to cut, nail and
screw |
 |
Excellent dimensional
stability |
 |
Decorative finishes
by tiles, paint and wash granolithic |
 |
Non combustible |
 |
resistance to mould
and fungai growth |
 |
Good chemical resistance |
 |
resistance to attack
by insects or vermin |
Application
WeatherPro-S
is used in a wide range of external and general purpose for
building applications in domestic, commercial, industrial
and agricultural include:
|
External wall cladding
