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Storage,
Cutting & Drilling
Storage
Store sheets on flat surfaces or wooden bearers with 100mm minimum
bearing surface placed
at centres not exceeding 1m. Cover securely with an opaque cover
to protect from wind, rain
and sun. Marlon ST Longlife should be stored indoors whenever possible.
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Cutting
Marlon ST Longlife can be cut with a fine tooth circular saw or hand
saw held at a shallow angle.Dust MUST be removed from the sheet using
a vacuum cleaner or dry compressed air. It is necessary to support
the sheet close to the cut and to hold it firmly to prevent stress
and vibration. |
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Circular saw |
Bandsaw |
Clearance angle |
20-30º |
20-30º |
Rake angle |
15º |
0.5º |
Cutting speed |
180-240 m/min |
200-250m/min |
Blade speed |
1800-2400 m/min |
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Tooth spacing |
2-5mm |
1.5-2.5mm |
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Drilling
Marlon ST Longlife can be drilled using standard twist drills and
carbide tipped drills. The sheet must be supported firmly underneath
when drilling. To allow for thermal expansion, holes should be drilled
a minimum of 6mm in diameter larger than the diameter of the shank
of the fixing being used for sheet lengths up to 2000mm and a further
2.5mm greater in diameter per 1000mm additional length of sheet. Holes
for cladding buttons should be a minimum of 18mm in diameter. Holes
must not be drilled any less than 40mm from the edges of the sheet.
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Safety
Do not walk on Marlon ST Longlife sheets at any time. Always use a
crawling board placed across several support purlins of the structure.
Sheets up to 3m long x 1m wide can be safely handled by one person
but larger sheets will require two or more people. When handling and
fitting sheets, particular care must be taken in windy conditions.
Any pallets of 6 metres or longer must be lifted using a spreader
beam of adequate length (with no more than 2.5m unsupported at each
end) or have the sheets removed by hand (one or two at a time) and
re-stacked on a suitable pallet. |
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