ARMOUR - SHIELD
Fire Resistant Polyurea Elastomer ( to UNI 9174 )
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Product Description
ARMOUR - SHIELD R is a pure polyurea 100% solids, zero
VOC resin system, which when combined with Armour - Shield H
will produce a resilient, durable polyurea elastomer that has been
tested to Class 1 in the UNI 9174 fire test. This material has been
formulated to perform in a wet environment and exhibits good
resistance to hydrolysis.
ARMOUR - SHIELD is available in a range of colours as
indicated:
| White |
Black |
Red |
| Yellow |
Green |
Blue |
| Orange |
Grey |
Brown |
Typical Applications
- TV, film and exhibition scenery and costuming
- Theme parks
- Coating polystyrene to form convincing but lightweight
architectural features
Processing
ARMOUR - SHIELD is processed through specially designed
dispensing equipment having accurate metering pumps for the
two components. The components should be maintained at 40-
60ºC and mixed and sprayed by the appropriate gun, on which
Isothane technical staff can advise.
Cured elastomer to be repaired should be abraded and traces of
dust removed. Maximum adhesion will be obtained if the
surfaces to be repaired are heated to a minimum of 35ºC. Some
surfaces will require the use of an Isothane primer.
To bond ARMOUR - SHIELD to the substrate, the substrate
must be dry and its temperature at least 3ºC above the local dew
point. ARMOUR - SHIELD is hydrophobic so unaffected by damp
substrates if it is meant to be non - bonded or demoulded.
Storage, Handling and Personal Protection
- ARMOUR - SHIELD should be stored in dry conditions at a temperature 20-25º C.
- ARMOUR - SHIELD R Resin has a shelf life of 6 months. Armour - Shield H has a shelf
life of 6 months if stored at 20-25º C.
- Opened, part used containers must be resealed immediately after use.
The recommendations in our Safety Data Sheet for this product must be followed at all
times. More general information is included in our publication “A Guide to the Safe
Handling of Polyurethane Chemicals” and in the following Technical Data Sheets which
are available on request:-
- Decontamination of Isocyanates using Isothane Decontaminant.
Additional Information
ARMOUR - SHIELD R resin may require some agitation before use, in order to effect
redispersion of any pigment. Recirculation of both components from the barrel, through the
machine’s heater blocks and back to the barrel, is recommended when using standard 2:1 or
1:1 transfer pumps, in order to prime the materials and machine. 30 minutes of recirculation
to warm the components to around 40º C will be adequate.
Post Curing: articles need not be post cured.
| Typical Properties of |
Armour - Form R Resin |
Armour - Form H |
| Armour - Form |
|
|
| Appearance |
Liquid - varying colours |
Clear Amber Liquid |
| Viscosity 25ºC |
700 cps |
650 cps |
| Specific Gravity @ 25º C |
1.2 - 1.3 |
1.2 - 1.3 |
| Water Content |
<0.01% |
N/A |
| Mixing Ratio |
100 parts Armour - Shield R Resin:
100 parts Armour - Shield H (by volume, mix tolerance
+1%) |
|
| Process |
Spray |
| Armour-Form Properties |
Units |
Typical Values |
Test Method |
| Shore Hardness |
º A |
45 |
|
| Tensile Strength |
MPa |
15 |
ASTM D412 |
| Elongation |
% |
335 |
ASTM D412 |
| Taber Abrasion |
mg |
325 |
H18, 1000 revs,
1000g |
| Reaction Profile |
|
| Gel Time |
8 secs |
| Walk On |
5 mins |
|