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Webglas GC


Overview
Webglas GC (GC = gel coated surface) is proving its worth in buildings where
steel and other roofing or wall cladding materials deteriorate or corrode at an
unacceptable rate. The sheet weight is 3660 grams per square metre and is
reinforced with a heavy gauge woven glass mat which provides continuous strength
and protection in every direction. The overall strength is such that wire
safety mesh is not required. This is a particularly important benefit in
aggressive and corrosive environments that can quickly destroy metal.
Where corrosion resistance is vital,
complete buildings may be clad and roofed with "Webglas GC" which can be
100% opaque, or translucent to transmit natural light. For extreme
environments, where high levels of acids or alkalines may occur,
"Webglas GC+" which incorporates vinyl ester resins, will provide
additional protection. What really sets Webglas apart from
traditional building materials is its combination of strength,
resistance to a wide range of chemicals and low surface erosion.
The warranty covers surface erosion for 20 years.
The special resin technology used in the
UV resistant surface coating is the same as that used for Ampelite's
premium grade "Wonderglas GC", now very widely used in major projects
around Australia. "Webglas GC" therefore provides low maintenance
roofing and cladding guaranteed for a specific lifetime.
"Webglas GC" polyester sheeting is
reinforced with heavy gauge woven matting that acts a a built in safety
mesh. "Webglas GC" fully complies, without restriction, to the
requirements of Class 2 to Class 9 buildings of the Building Code of
Australia.
For more information on
Ampelite’s Gel Coat technology, click here.
"Webglas GC"
Polyester resin base sheet with Isopthalic NPG Gel Coated surface.
Continuous woven mat reinforcement.
"Webglas GC+"
Vinylester resin base sheet with Isopthalic NPG Gel Coated surface.
Continuous woven mat reinforcement.
All resins are UV stabilised and acrylic modified to provide excellent
weather resistance. If cleaned regularly the sheeting retains its original
bright appearance over many years.
Both products withstand environments that corrode
or destroy metal and many plastics in a short period of time. "Webglas GC+"
provides additional protection where there are high concentrations of alkalines
or acids. See the "Chemical Resistance" table for details.
Available Profiles
All current profiles
(see link below) such as
Corrugated, Trimdek, Speed-dek,
etc. plus most superseded profiles are available. Click here to
view profiles.
Quality
Ampelite "Webglas GC" &
"Webglas GC+"fully comply with the building code of Australia, Class 2 to Class
9 Buildings, including Part BI which takes into account Australian and New
Zealand Standards AS1170.2:1989, AS/NZS 4256.3:1994, AS/NZS 1562.3:1996,
AS4040.1:1992.
Fire Retardant
Properties
Webglas GC and
GC+ fully comply with Building code specification C1.10 in particular AS1530.3:
1989.
Applications
Fertilizer and Agricultural Chemical
Plants
Corrosive Chemical processing
Petrochemical environments
Wastewater Treatment
Marine Environments
Mining Industry
Paper and pulp manufacturing
Salt extraction and desalination plants
Power Stations
Skylighting where safety mesh is not desirable
Sheeting Grades
| Series |
Weight (Kg/m2) |
| 3660 |
3.66 |
Important: Heavier grades give the specifier the option to use
Ampelite sheeting in cyclonic zones, or match the span of the nominated steel
roofing material (see 'Spanning Capacity').
Light and Heat Transmission
| Grade |
3660g |
| |
Light % |
Shading
co-efficient |
| Ice Clear |
60 |
0.69 |
| Opal (white) |
56 |
0.46 |
| Coloured Opaque |
0 |
0.12 |
Other colours
can be produced to order for viable quantities, please contact your local
Ampelite office
Span and Fastener Table
| Sheet
Application |
Skylight Strip |
*Complete Roof |
|
Profile |
Fastener Spacing |
No. of Fixings m2 |
1.0 kPA |
2.0 kPA |
Maximum |
|
Corrugated |
every
2nd crest |
6.5 |
1.9m |
1.5m |
1.5m |
| 5-Rib |
every
crest |
5.2 |
2.1m |
1.6m |
1.7m |
|
Spandek |
every
3rd crest |
3.8 |
2.2m |
1.6m |
1.6m |
| Super
6 |
every
2nd crest |
3.3 |
2.6m |
2.0m |
2.1m |
| LT7 |
every
2nd crest |
3.9 |
2.1m |
1.6m |
1.7m |
| Box
Rib 5 |
every
crest |
5.4 |
2.2m |
1.8m |
1.9m |
* Maxmum span for
complete "Webglas GC" roof, allowing for concentrated load as per
AS1170.2
Expansion Data
|
Materials Comparison |
|
0°C to 40° temperature
variation. Based on a sheet length of 12 metres. |
| |
Webglas GC |
Fibreglass |
Polycarbonate |
Steel |
Aluminium |
| Thermal Expansion |
9.1mm |
14.4mm |
32.4mm |
5.8mm |
11.5mm |
| Thermal Co-efficient |
1.9 x 10-5
cm/cm°C |
3.0 x 10-5
cm/cm°C |
6.75 x 10-5
cm/cm°C |
1.2 x 10-5
cm/cm°C |
2.4 x 10-5
cm/cm°C |
| Thermal
conductivity |
0.096 W/m.K |
0.158 W/m.K |
0.21 W/m.K |
47.5 W/m.K |
23.5 W/m.K |
| Density |
1685 kg/m3 |
1400 kg/m3 |
1200 kg/m3 |
7850 kg/m3 |
2850 kg/m3 |
Physical Properties
| Tensile Strength |
111 Mpa |
| Impact Strength |
10 Joules |
| Shear Strength |
90 Mpa |
| Modulus of Elasticity |
5.3 Gpa |
| Compressive Strength |
151 Mpa |
| Flexural Strength |
181 Mpa |
| Specific Gravity |
1.6 |
| Water Absorption |
.2% in 24hrs./26°C |
| Curved Roof Radius |
3660g/m2 "Custom Orb" and "5-Rib" |
| Minimum Radius |
7.5 Metres |
| Recommended Service Temperature Range |
-20° to +95°C |
Installation
Fixing Details
In corrosive environments we recommend that:
- All fixings be Stainless Steel.
- All fixings be Cyclonic Assemblies.
Flashing and Capping
We recommend that all be Stainless Steel.
Technical Support
Projects involving corrosive environments often require
supportive evidence regarding product suitability or manufacturers
recommendations regarding the use of a particular material. Ampelite can
provide extensive technical support to the extent of product development if
necessary. Contact your local
Ampelite Office if you
require this service.
Chemical
Resistance
|
Chemical Group |
| |
Webglas GC |
Webglas GC+ |
Polycarbonate |
P.V.C. |
| Organics |
| Acetic Acid
25% |
LS |
R |
LS |
NR |
| Ethanol |
R |
R |
NR |
LS |
| Heptanes |
R |
R |
R |
LS |
| Kerosene |
R |
R |
R |
LS |
| Turpentine |
R |
R |
LS |
LS |
| Urea |
R |
R |
LS |
LS |
| Acids |
| Hydrochloric
Acid Conc. |
LS |
R |
NR |
LS |
| Hydrochloric
Acid 10% |
R |
R |
R |
R |
| Hydrochloric
Acid 40% |
NR |
R |
NR |
LS |
| Nitric Acid |
R |
R |
R |
LS |
| Oleic Acid
Conc. |
R |
R |
R |
NR |
| Phosphoric
Acid Conc. |
LS |
R |
NR |
R |
| Phosphoric
Acid 30% |
LS |
R |
NR |
R |
| Sulphuric
Acid 30% |
LS |
R |
R |
R |
| Sulphurous
Acid |
NR |
R |
NR |
LS |
| Sulphuric
Acid 3% |
R |
R |
LS |
LS |
| Alkalines |
| Ammonium
Hydroxide 10% |
LS |
R |
NR |
R |
| Ammonium
Sulphate |
LS |
R |
LS |
R |
| Sodium
Hypochlorite (Chlorine) |
LS |
R |
R |
NR |
| Sodium
Hydroxide 10%(Caustic) |
LS |
R |
NR |
R |
| Sodium
Hydroxide 25% (Caustic) |
LS |
R |
NR |
R |
| Salts |
| Ammonium
Carbonate |
R |
R |
NR |
NR |
| Copper
Chloride |
R |
R |
R |
R |
| Nickel
Chloride |
R |
R |
R |
R |
| Potassium
Carbonate |
R |
R |
R |
LS |
| Sodium
Carbonate |
R |
R |
R |
LS |
| Zinc Sulphate |
R |
R |
R |
R |
| |
| KEY |
R =
Recommended LS = Limited Service
NR = Not Recommended |
Warranty
Webglas GC
features a limited 20 year warranty. For full warranty details, please contact
your nearest Ampelite office.
Downloads
Project
Photos
Brochures
Webglas GC
Fibreglass Part1
Webglas GC
Fibreglass Part2
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