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Microglas® Glass Flake RCF2300Extending horizons in anti-corrosion coatings
CANADA
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Introducing Microglas® Glass Flake RCF2300
Microglas® RCF2300 is a C glass platelet approximately 2 microns thick and 300 micron in diameter.
Microglas® RCF2300 can be used to extend the range of glass flake coatings beyond the traditional high film thicknessapplications in offshore and similar aggressive environments. RCF2300 can be used in coatings with a dry film thickness ( DFT) of 500microns or less. These thinner coatings areeconomically suitable for a broad range of applications which could not consider traditional flake coatings; examples of theseinclude road, rail and foot bridges, civil engineering structures and fluid storage facilities.
Classification of Microglas® Glass Flake RCF2300
Identification of Microglas®
Glass Flake
R C F C glass2 Glass flake thickness (Nominal µ)300 Particle size (Nominal µ)A Type of surface treatment
Particle size distribution and bulk density
Type
Product code
Glass Composition
Specific gravity
Thickness ( m)
Loss on ignition(%)
Surface Treatment agent
>1700 m
1700~300
300~150
150~45
<45 m
RCF2300A
0
25 or less
Aminosilane
Surface treated
0.15 0.10
RCF2300
Ave. 1-3
0
2.5
C glass
80 - 20
20 - 60
25 or less
Ave. 1-3
2.5
C glass
80 - 20
20 - 60
Non-Surface treated
Acrylsilane
Aminosilane
N
A
Surface Treatment Treatment Code
0
20
40
60
80
100
1 10 100 1000 10000
Particle Size( microns )
Cum
ulat
ive
%
RCF2300
RCF600
RCF160
RCF2300
RCF600
RCF160
RCF015
0.16
0.20
0.40
0.75
0.25
0.30
0.65
1.15
Bulk density(g / cc)
Bulk density aftershaking (g / cc)
Microglas® Glass Flake RCF2300 is available in a range of surface treatments to suit different resins.
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The Benefits of RCF2300
Advantages of Microglas® Glass Flake
Microglas® Glass Flakedispersed in a resin coating (x200)
HAZARDOUS ENVIRONMENT
PROTECTIVE COATING WITHGLASS FLAKE MULTI BARRIER
PRIMARY COATING
STEEL / CONCRETESUBSTRATE
1) Economic Many structures are traditionally painted with several coats of systems containing micaceous iron oxide (MIO) and involve costlyadditional processes such as liquid metal spraying of zinc or aluminium prior to coating.
Microglas® Glass Flake RCF2300 can improve the performance of the coating sufficiently to avoid the use of these expensiveadditional operations.
The long term stability and barrier performance of Microglas® Glass Flake can extend the service life of the coating beyond that ofthe traditional systems.
In summary Microglas® RCF2300 allows the formulation of coating systems offering significantly reduced total coating costper square metre compared to traditional systems.
2) Environmental The need to reduce the environmental impact of coatings has never been greater. Microglas® Glass Flake can be used in formulationswith reduced volatile organic compounds (VOC) in order to meet environmental requirements.
To reduce evaporation from tanks or aesthetic impact many large structures are now required to be coated in specific colours.
Microglas® Glass Flake offers complete colour flexibility unlike many traditional types of filler such as micaceous iron oxidewhich restrict colours to a grey base.
3) Health and Safety Health and safety regulations are becoming increasingly demanding.
Many traditional coating systems e.g. coal tar epoxy can contain harmful substances which are no longer permitted in coatings.
Coatings containing Microglas® Glass Flake can be used to formulate cost effective replacements for many traditional systems
• Extend life of protective coating. Glass flakesdispersed through the coating prevent the ingress ofwater vapour and chemical solutions.
• Prevention of cracking and peeling. Glass flakesprovide a thermal stabilisation layer in the protectivecoating and greatly reduces the risk of cracking andpeeling of the coating due to thermal shock.
• Improved wear resistance. Glass flakes increase thehardness of epoxy and polyester resin coatings,giving higher resistance to surface wear.
• Chemical resistance. C glass has greater resistanceto chemical attack, compared to other types of glass.
Microglas rcf2300 V3 1/4/05 1:45 pm Page 3
The water absorption barrier performance of RCF2300 approaches that of RCF600.
RCF2300 has the advantage of allowing the application of coatings by airless spray.
0.020.00
0.040.060.080.100.120.140.16
RCF160 RCF600RCF2300
Microglas® Glass Flake
Wat
er a
bsor
ptio
n(w
t%) 0.18
Water absorption
Test pieceResin: Vinyl ester A
Ripoxy R802Glass Flake content : 35wt%Test Method: immersed in water
for 24Hr at 23ºC
4
Microglas® Glass Flake – in anti-corrosion coatings
RCF2300 has excellent water vapour barrier properties.
0.002
0.000
0.004
0.006
0.008
0.010
0.012
0.014
0.016
RCF160 RCF600 RCF2300
Microglas® Glass Flake
Wat
er v
apou
r pe
rmea
bilit
y(g
/m2•
mm
Hg•
day)
Water vapour permeability (JIS Z0208)
Test pieceResin: Vinyl ester A
Ripoxy R802Thickness of lining layer :1mmGlass Flake content : 30wt%
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Qualitative effect of Flake addition level
Reduced Dry Film Thickness(DFT) = Reduced System Cost
RCF2300 enables high performance to be achieved at reduced DFT.
This reduces coating costs and saves application time.
100.00%
80.00%
60.00%
200
0.20
0.25
0.33
300
0.30
0.38
0.50
400
0.40
0.50
0.67
500
0.50
0.63
0.83
600
0.60
0.75
1.00
700
0.70
0.88
1.17
800
0.80
1.00
1.33
900
0.90
1.13
1.50
1000
1.00
1.25
1.67
DFT in microns%solids
Theoretical volume in litres required per square metre of substrate for a coating containing100% Solids
0.00
0.20
0.40
0.60
0.80
1.00
1.20
200 300 400 500 600 700 800 900 1000DFT in microns
Qua
ntit
y of
Coa
ting
nee
ded
Lit
res
per
Squa
re M
etre
Vapo
ur pe
rmea
bility
(x 10
-2 g/
m2 -
mm
Hg -
day)
Content of MICROGLAS® Glass Flake
Wat
er ab
sorp
tion (
%)
Boiled water absorption
Vapour permeability
Water absorption
6
5
4
3
2
1
0 10 20 30 40 50
0.6
0.5
0.4
0.3
0.2
0.1
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Glass Composition
Type of glassC glass (%)E glass (%)
SiO2
65~72
52~56
Al2O3
1~7
12~16
CaO4~11
16~25
MgO0~5
0~6
B2O3
0~8
5~13
Na2O+K2O9~13
0~0.8
ZnO0~6---
• Chemical resistance. C glass has greater resistance to chemical attack, compared to other types of glass, as shown below.
10% HCI
10% H2SO4
30% H2SO4
10% HNO3
10% NaHCO3
H2O
Weight loss (%)
C glass
E glass
1.6
42.4
1.3
41.2
1.2
41.5
1.5
25.6
3.7
2.0
1.3
0.7
0% 5 10 15 20 25 30 35 40 45
Comparative weight loss of C and E glass when immersed in chemical solution at 80°C for 24 hours.
Coatings using Microglas® RCF2300 can achive savings in life cycle cost over traditional coatings for largestructures such as bridges.
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Packaging
Microglas® Glass Flake RCF 2300 is supplied in moisture proof paper bags, each containing 20 kgs nett weight.
For bulk shipments, the bags of glass flake are palletised
and further protected by cardboard and polythene wrapping.
The overall dimensions of a fully loaded pallet are 1100 x
1160 x 1020mm high.
Typical apperance of Flake
Shipping container loadings, nett weights20' Container 40' Container
Glass Flake RCF2300 5.6 tonnes 11.2 tonnes
Pallet Loadings
Glass Flake RCF2300 : 14 x 20 kg bags (280 kg total nett weight)
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Nippon Sheet Glass Company Ltd. 4-5-33 Kitahama, Chuo-Ku, Osaka 541-8559, Japan. Tel: +81 66 222 7566 Fax: +81 66 222 7585e-mail: [email protected]
NGF EUROPE Limited. Lea Green, St Helens, England WA9 4PR. Tel: +44 (0)1744 853065 Fax: +44 (0)1744 816147e-mail: [email protected]
NGF CANADA Limited. 255 York Road, Guelph, Ontario N1E 3G4 Canada. Tel: 1-519-836-9228 Fax: 1-519-836-4052e-mail: [email protected]
http://www.nsg.co.jphttp://www.ngfeurope.comhttp://www.ngfcanada.com
Members of the Nippon Sheet Glass Group
CANADA
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