Introduction
WeatherPro is
an autoclaved calcium silicate board with 100% asbestos
free. WeatherPro is specially designed for use in applications
where high impact resistance is required in a high humid
environment. The board is manufactured to ISO 9001 quality
management system and has obtained the China Environmental
Labeling issued by China National Environment Protection
Bureau, the most stringent requirement in manufacturing
business.
Description
WeatherPro is produced from a
mixture of cement, silica, special cellulose fibres and
selected fillers to impart durability, toughness and moisture
resistance. The board is then cured by an autoclaving process
whereby the ingredients are reacted together under the effects
of super-heated steam and high pressure. 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
and causing unsightly marks. If exposed to moisture, the
board will completely recover on drying out, with no permanent
loss of strength. The board will not degrade with time and
within normal applications, the life of the product is limited
only by the durability of the supporting structure and materials
used in fastening. WeatherPro is off white in color and
has a high quality smooth finish to the surface.
Size & Manufacturing Tolerances
| Thickness |
3mm ~ 30mm |
| Width |
1220mm |
| Length |
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 |
1350 kg/m3 +/-10% |
| Thermal conductivity |
0.21 W/mK |
| Flexural strength (along grain) |
11.5 Mpa |
| Flexural strength (across grain) |
16.5 Mpa |
| Moisture movement (ambient to saturated) |
0.03% |
| Water absorption capacity |
32% |
| resistance to continuous heating |
80 degree C |
| Surface alkalinity |
pH 7-10 |
| Non-combustibility |
BS476: Part 4
ISO 1182:1990
GB8624-1997, Grade A |
| Non-permeability |
No leakage after 6 hours of continuous water spray at
0.5litre/mintues under 250Pa pressure |
| Freezing and thawing test |
No alteration nor de-lamination after 25 cycles of freezing/thawing |
Specific Properties
 |
Weatherproof |
 |
Frost resistance(freeze/thaw
test) |
 |
Good mechanical resistance
and rigidity |
 |
Lightweight but strong |
 |
Non-combustible |
 |
Rot proof, Anti-bacterial,
resistance to insects and mould growth |
 |
Excellent dimensional
stability |
 |
Good chemical resistance |
 |
Decorative finishes
by tiles, paint and wall paper |
 |
Maintenance friendly |
 |
Easy to use |
 |
Acoustic insulation |
Application
WeatherPro can
be used in a wide variety of building applications because
of its easy working, fixing and decorating characteristics.
Typical application includes:
|
Roofing substrate panels
