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Normal workshop
practices should be observed. Plastics swarf from KORC sheets
is inflammable and should not be allowed to accumulate in
workshops. It can be recycled if sufficient volume of offcuts
and swarf are generated, if not, it can be disposed of with
general waste. The material is generally regarded as being
non-toxic.
The sheets are naturally slippery, stacks especially so, and
as the edges can be sharp, we recommend gloves for handling
larger pieces. The Mobiles sheet may contain small pieces
of metal, and care should be taken when cutting or using the
cut sheet with exposed edges.
Burning and Fire Data
KORC boards are made from organic materials, and burn when
the temperature is raised sufficiently high. We have conducted
fire tests on the HDPE to BS 5852, tested with three ignition
sources, Cigarette, No. 1 flame and a No. 5 crib. The pass
results were sufficient to gain approval for the manufacture
of benches and seating for the public area in the Science
Museum in London. This includes seating in the fire exit area.
An equivalent material to the HDPE sheets has been tested
to BS 476 Part 7 (1987) (This is the surface spread of flame
test), where it achieved class 2. Equivalent material has
also been tested as follows:
• UL94 tests is HB
• ASTM D635 burning rate of b
• DIN 4102 B2 It is classified as 'normally inflammable'
We do not recommend the boards for ceilings or, as thin sheets,
as wall cladding in high fire risk areas. The local Fire Officer
should be advised about the fire performance of the SP sheets,
please telephone us to ask for the most appropriate information
and samples. |
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| 1 : Physical Data and handling |
| Physical form |
Solid in sheet form |
| Odour |
Weak |
| Melting Point |
100-150°C |
| Boiling Point |
not applicable |
| Density |
not applicable |
| Vapour Pressure |
0.92 - 1.20 g/ml |
| Solubility in Water |
Insoluble |
| Thermal Decomposition |
>270°C |
| Hazardous Reaction |
None known |
| Protective Measures |
No special measures |
| Disposal |
Inert, can be recycled or disposed of as normal waste |
| 2 : Fire and Explosion Hazard |
| Flash Point |
not applicable |
| Ignition Temperature |
FIT approx. 350°C (ASTM D1929) |
| Extinguishing Media |
Water, Water Mist, CO2, Foam, Dry Powder |
| Special Fire Precautions |
Observance of the general rules for preventative protection
against works fires is recommended. Swarf from cutting
operations is a fire risk and must not be allowed to accumulate.
As cutting blades cause frictional heat it is important
to remove any swarf from the cutting area immediately. |
| Explosion Hazard |
None known |
| 3 : Toxicity KORC recycled plastics
sheets are made from chemically unreactive material and
are regarded as being biologically inert. |
| Inhalation |
When burnt the sheets may give off fumes
which may be irritant. |
| Skin Contact |
Abrasion risk on unfinished sheets |
| Ingestion |
Ingestion should be avoided as some of the additives
may be harmful. |
4 : Emergency and First-Aid
Skin burns due to hot or fused masses must be treated
clinically as thermal burns. |
5 : Ecology
Not harmful to the environment. |
6 : Summary
By analogy with related materials it is unlikely to cause
harmful effects under normal conditions of handling and
use. It is similar to many plastics materials in that
the sheets will burn if ignited by exposure to significant
heat sources. This risk increases as the available surface
area increases, hence dusts and fine shavings constitute
a fire risk. Removal of these products at the site of
generation is therefore recommended. Should heating give
rise to fumes then local exhaust ventilation should be
considered. |
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