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ROOM TEMPERATURE
CURED POLYURETHANE CAST ELASTOMER SYSTEMS
Specifications
► DESCRIPTION:
Ezecast
elastomers are two component, room temperature cured, solvent free
reactive polyurethane systems. This material sets to give a highly
elastic, non cracking, non-shrinking mass which can be used very
effectively to protect a wide range of substrates used in conditions
requiring high abrasion resistance and high impact resistance. Ezecast 113
and 213 form a putty whereas Ezecast 114 and 214 form a pourable /
brushable mixture which is ideal for repairing damaged rubber components
as well as protecting metal equipment from abrasion, impact and corrosion.
Ezecast elastomers have excellent resistance to water, oil and grease
coupled with excellent weather resistance. They can also be used for
electrical insulation applications.
►
USES:
Repair
of rubber belts, rollers, moulds and parts.
Repair
of rubber lined equipment, vibratory feeder bowls, and de-burring
equipment.
Lining
of hoppers and chutes.
Protection
of slurry pumps.
Protection
of pump impellers, scrubbers and cyclones against abrasion.
Protection
of pneumatic conveying pipes.
Impact
resistant linings.
Insulation
of bus-bars and cables.
►
APPLICATION:
The
surface should be clean, dry and free from oil, grease and dirt particles.
PRIMING
Metal Surface: Metal surfaces should be shot blasted or mechanically
cleaned to remove all traces of rust. Apply a thin layer of Ezecast 116 by
brush on the clean metal surface. Allow it to dry for 10 minutes and then
apply the Ezecast putty or liquid.
Rubber
Surface: Brush on a thin layer of Ezecast 116 on the clean rubber surface
and allow it to dry for 10 minutes and then apply the Ezecast putty or
liquid.
APPLICATION
PROCEDURE
Putty:
Mix thoroughly Ezecast 113 and Ezecast 213 in the specified ratio and
allow it to thicken for about 15 minutes. When the mixture is of the
desired viscosity, apply the mixture (upto 5mm per coat) over the surface
by means of a scraper blade. Ensure that no air bubbles are trapped in the
material. Apply additional coats if required keeping a gap of 1.5 - 2
hours between coats. In case more than 3 hours elapse between application
of two coats, apply a layer of Ezecast 116 to increase the inter-coat
adhesion. Allow the coating to cure for 7 days at room temperature or 12
hours at 100° C.
Liquid:
Mix thoroughly Ezecast 114 and Ezecast 214 in the specified ratio and
immediately pour or spread over the primed surface to the required depth
(max 5mm at a time).The rest of the procedure is same as that used for
putty.
►
PROPERTIES:
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Ezecast
113 / 213 (Putty)
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Ezecast
114 / 214 (liquid)
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Mixing
Ratio by weight
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100:35
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100:45
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Mixing
Ratio by volume
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100:34
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100:42
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Specific
Volume cm3/kg
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945
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977
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Pot
Life( minutes )
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20-25
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25-30
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Tack
Free Time at 30° C (hours)
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4
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4
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Full
Cure Time at room temp. (days)
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7
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7
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Full
Cure Time at 100° C (hours)
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12
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12
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Dielectric
Strength (kV/mm)
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14
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14
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Resistance
to dilute acids
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Good
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Good
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Resistance
to alkalies
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Good
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Good
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►
STORAGE
AND PRECAUTIONS:
Ezecast
components should be stored in a cool and dry area. They can be stored for
6 months in their original, unopened containers. Material from tin cans
should be completely used up immediately after opening the can. Metal
drums should be re-closed immediately after use. Ezecast may cause
irritation to eyes, skin and mucous membrane, and is harmful if swallowed.
While handling, all contact with eyes, skin and clothes should be avoided.
Equipment used for application of Ezecast should be cleaned with xylene or
toluene or MEK.
All
Ezecast formulations are subject to strict quality control, innovations
and improvements. The
above information is given on the basis of our best knowledge and
information and is for your guidance only. Specifications, however, are
subject to change and no guarantee is given or implied.
All
Rights Reserved. 1980 - 2015
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™