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STICKFAST
353 BROMINATED VINYL ESTER RESIN
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GENERAL
DESCRIPTION |
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Stickfast
353 is a Brominated Vinyl Ester Resin
designed to have a very high degree
of fire retardancy, coupled with excellent
mechanical and chemical resistance
properties. It is recommended for
use in the manufacture of FRP Components
viz filament winding, hand lay up,
centrifugal casting, bag moulding
or pultrusion.
SALIENT FEATURES
Stickfast 353 is a Brominated Vinyl
Ester Resin the unsaturation is terminal,
thereby attributing to it the expectionally
reactive carbon= tocarbon double bonds.
There for they are rapidly, consistently
and completely to give fast green
strength and superior creep resistance.
The brominated Bisphenol a epoxy back
bone in their molecular structure
imparts a high degree of fire retardancy
together with good mechanical and
chemical resistance. Since fire retardance
is achieved without additieves, chemical
resistance is maintained and visual
inspection of fabricated articles
is not impaired.
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TYPICAL
PROPERTIES OF STICKFAST 353 |
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| Appearance
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Yellow
clear liquid
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Viscosity
@ 25 °C
(Brook field viscometer)
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400 
50 |
| Speicifiy
gravity @ 25 °C |
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1.08
0.02 |
| Acid
Value (mgs KOH/gm) |
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5
- 10 |
| Volatile
content (Wt%) |
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40
2 |
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CURING
CHARACTERISTICS |
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Stickfast 353 brominated vinyl
ester resins are polymerized
by free-radical initiating catalysts.
The most commonly used catalyst
systems are similar to the one
used with other grades of vinyl
ester resins.
Typical
gelation time of Stickfast
353 at 25
°C
is given below.
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| Stickfast
353 |
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100
gms |
| Promoter
(DMA 8%) |
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1.5
ml. |
| Accelerator
(Co 3%) |
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1.5
ml |
| Catalyst
MEKP (50% Conc.) |
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1.5
ml. |
| Geltime
(Minutes) |
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25 |
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CAUTION : Accelerator and promoter
should never be mixed with catalyst
as this would cause explosion.
The accelerator and promoter
should be blended into the resin
first. The catalyst should be
added just before use. |
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| TYPICAL
MECHANICAL PROPERTIES OF CURED
UNREINFORCED RESIN
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| Tensile
strength (Kg/cm2) |
600
- 700 |
| Flexural
strength (Kg/cm2) |
1100-
1200 |
| Heat
Distortion Temperature
(°C) |
102
2 |
| Barcol
Hardness |
35
- 40 |
| Elongation
at break (%) |
4– 5 |
| Specific
Gravity |
1.30 |
| Critical
Oxygen Index |
27 |
AREAS OF APPLICATION
Stickfast 353 brominated
vinyl ester resin shows
chemical resistance properties
similar to general purpose
Vinyl Ester Resin Stickfast
351, but have added advantage
of fire retardance and
also performs at slightly
higher temperature. Stickfast
353 brominated vinyl ester
resin can be successfully
used in FRP duct works,
stack liner applications,
equipment specified to
handle mixtures of air
and hot gases or potentially
flammable liquids, building
pannels and flooring compounds,
where a high degree of
fire resistance is needed.
Major end uses also include
pollusion control scrubbing
units, solvent extraction
equipment and marine applications. |
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