Hello everyone. Like our
re-designed title block?
It is August and I am sure most
of us Malaysians are
looking forward to the month-end holiday where we will be
celebrating Merdeka day; our Independence day.
"Happy
50th Birthday Malaysia"
In this
issue, we will touch on various types of zinc-based coated steel
substrates that are available in the market and can be
possibly used for the
manufacturing of pre-painted steel. Not all of them
will be suitable for the downstream manufacturing of colour metal roofing or wall cladding. So if you are a
designer or consumer, beware!
We would also like
to hear comments or ideas from you as to how we can improve
our e-newsletter. You can email me at the address below. Thank you. Jim
Team leader & Editor
Editor@colourcoil.com
www.colourcoil.com
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Vol1 Issue5 December 2006
Vol2 Issue1 February 2007
Vol2 Issue2 April 2007
Vol2 Issue3 June 2007
Click on
Articles of interest
a)
Protecting the client - how do you
know that you are getting what you
specified
b)
Measuring colour change
(i.e. colour fading)
c)
Paint quality affects the colour
performance of metal roofs
d)
Various coating systems offered in
the market that can affect the
performance of your metal roof
e)
Why should you specify the material
grade for your metal roof
| | | "World-class"
pre-painted steel
Up to 20 yrs warranty against
colour fading, chalking & delamination 25 yrs warranty against corrosion
| | | Main Office & Factory Mr. Peter Wong
Commercial Manager
Hf: +60 (0)198813211
email: pwsv@colourcoil.com
Km 25, Off Jalan Tuaran, Telipok
P.O. Box 21918, 88777 Luyang
Kota Kinabalu, Sabah, Malaysia
Tel: +60 88 496222
Fax: +60 88 499918
Marketing & Sales Office Miss Kan Wai Hing,
Marketing & Sales Executive
Hf: +60 (0)133882468
email: waihing@colourcoil.com Miss Mashita bt. Ismail
Marketing & Sales Executive
Hf: +60 (0)133504388
email: Mashita@colourcoil.com 19-A-20, 20th floor, Business Suite
UOA Center, No. 19 Jalan Pinang
50450 Kuala Lumpur, Malaysia
Tel: +60 3 2166 3113
Fax: +60 3 2166 1331
Website
www.colourcoil.com
General email: info@colourcoil.com
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|
Want a metal roof with colours that last ?
 Colourcoil Industries is proud to bring to you COLOURCOIL® high performance pre-painted steel that comes in various grades with a wide range of new and exciting colours ranging from solid to metallic.
COLOURCOIL® high performance pre-painted steel are completely lead-free and when cured with the latest state-of-the-art Infrared (IR) technology, their finishes are brilliant, smooth and blemish-free, exhibiting excellent colour retention and film durability properties. Minimize future maintenance costs by "getting it right the first time". Specify Colourcoil high performance pre-painted steel for your next metal roofing project.
More details.....
Did you know.........?
 Pre-painted
steel can be manufactured from using various zinc-based metal
coatings on steel substrates. Zinc metal has a number of
characteristics that make it well-suited for use as a coating
for protecting iron and steel products from corrosion. Its
excellent corrosion resistance in most environments accounts for
its successful use as a protective coating on a variety of
products and in many exposure conditions.
The following table
are various zinc-based coated steel substrate
available in the market:
|
Substrate Name |
Description |
Galvanized
|
A zinc coating, usually
hot-dipped, in which the zinc and steel form a
metallurgical bond. The thickness of a hot-dipped
coating can be varied from a thin zinc/iron alloy
layer to heavy applications suitable for extended
outdoor exposure. In-line galvanized coatings are
applied during the manufacturing process of the
hollow or open section, with the cleaned steel
section exiting the mill and passing into the
galvanizing bath. This coating is usually measured
as thickness or as coating mass in grams per square
meter and ranges from a minimum of about 100 g/m2
upwards, with an average around 175 g/m2. |
Electrogalvanized
|
Also a zinc coating, but
applied in a cold, electrolytic bath rather than a
molten zinc bath. Traditionally the coatings are
thinner than hot-dipped and not suitable for
extended outdoor exposure. This process applies a
layer of pure zinc that ranges from a few microns on
cheap hardware components to 15 microns or more on
good quality fasteners. Technical and cost issues
prevent the economical plating of components with
heavier coatings. |
|
Galvanneal |
Galvanneal
is a hot-dip coated sheet product in which the zinc
coating has been changed into a zinc-iron alloy
coating for improved paintability. This is done in
the hot-dip process by taking the zinc-coated sheet
as it leaves the bath of molten zinc and immediately
subjecting it to a heat treatment that causes the
zinc to alloy with the iron and become a zinc-iron
alloy coating. Galvanneal has a dull matte
appearance compared with the shiny bright
surface of hot-dip galvanized. This matte surface is
excellent for painting. The iron-zinc alloy coating
is harder and more brittle than the soft zinc
coating of hot-dip galvanized. This harder coating
is more resistant to scratches during handling, but
also may show a greater tendency toward 'powdering'
of the coating during difficult forming operations. |
|
5%
Aluminum-Zinc coated steel |
A proprietary zinc alloy
coating (5% aluminum) with improved corrosion
resistance and formability compared to zinc alone.
Galfan has been around since the International Lead
Zinc Research Organization (ILZRO) obtained
worldwide patents on this new alloy for
anti-corrosion coating in 1981. It was discovered
that by combining 95% zinc with nearly 5% aluminum
plus specific quantities of rare earth mischmetal
could be reliably used in the hot-dip coating
process, and conferred substantially improved
performance to the end-product. |
|
55%
Aluminum-Zinc coated steel |
A proprietary zinc alloy
coating containing 55% aluminum with superior
corrosion resistance. The coating makeup is a duplex
microstructure that results from the aluminum-rich
phase solidifying first, as the coating cools,
forming a network of dendrites. Interdendritic
spaces are-filled by the zinc-rich phase. The
intermetallic layer is an Al-Fe-Zn-Si alloy that
metallurgically bonds the coating to the steel
substrate and further aids in corrosion resistance. |
All of the above
substrates can be pre-coated with paints, but some of them will
not give you the performance you may be looking for, when used for the downstream manufacturing
of colour metal roofing, wall cladding, roller shutters or any
roll-formed products that maybe exposed outdoors. They are:
-
Electrogalvanized - Commonly known as EG, the layer
of zinc coating applied to the steel is very thin. Hence it
is typically used only when the application requires a very
smooth surface or when the application requires only a very
small amount of corrosion protection (10 to 30 g/m2
both sides totaled) . Hence, this type of pre-painted steel substrate
is not suitable for metal roofing which is constantly
exposed outdoors.
-
Galvanneal - This product is more suitable for
post painting as the surface texture is of a matt
finish. It is not suitable for the manufacturing of
pre-painted steel as the iron-zinc alloy coating is hard and
brittle and may "powder" during difficult forming
operations.
Pre-painted Electrogalvanized(EG) or Galvanneal steel are not
suitable for the downstream manufacturing of metal roofing, wall
cladding or roller shutter doors, or any metal building products
which are roll-formed and exposed outdoors.
If you are a
designer or consumer, make sure you are not shortchanged by
checking with your metal roofing or roller shutter door
manufacturer that the pre-painted steel substrate used is not "electrogalvanized
(EG)
or galvanneal".
Just to let you
know, COLOURCOIL® high performance pre-painted steel
are manufactured with genuine 55% Aluminum-Zinc coated steel.
Presentation
at PAM Southern Chapter, JB
Colourcoil Industries
was invited by PAM Southern Chapter to give a presentation in Johor Bahru
on the 9th June. Representing Colourcoil Industries at the
seminar, was Mr. Peter Wong, our Commercial Manager. The seminar
proved to be interesting to the 31 architects. Lunch was sponsored by Colourcoil Industries followed
with lucky draws where 3 winners were given free trips to Sabah.
Congratulations to
| Ms. Gurupiah Rubi
Mursib, Universiti Tecknologi Malaysia |
| Mr. Ismail Bin Ros,
IRC Architect |
| Mr. Loh Yun Loong,
CNC Architect |
Seminar attendants at PAM JB office
|
Peter handing out souvenir
to PAM Southern Chapter Chairman
Ar Hajjah Nor Aini bt Juffery
|
Lucky draw with Peter and
PAM Southrn Chapter
Deputy Chairman
Ar Azman Bilaji |
One of our lucky draw
winners
|
Updated Website -
e-Newsletter
archives
 We have just
added a webpage containing previous issues of
Colourcoil e-newsletter. We hope to encourage more visitors
to our website. After much comments from our readers, we have
decided to re-design the navigation bar to improve our visitors surfing experience.
Flash design for
homepage
has also been re-worked with new photos and colours.
Need help?
Whether you are an architect, engineer, developer, house owner or a metal roofing manufacturer, our marketing team will most delighted to discuss with you on your specific product requirements. If you wish to obtain a free brochure or complete specifications and colour charts, please contact our courteous and friendly marketing staff by calling the nearest office or just drop us an email at info@colourcoil.com. |
