Light Gauge Foil

P.D.S. FOILS manufactures light gauge converter foil with the following general specification. The final product specifications made as per agreed contract with the customers.

FOIL MATERIAL :

Aluminium alloy AA-1200 or AA 1235 conforming to Aluminium Association. Specification.

TEMPER :

Soft (fully annealed; ‘O’)

SURFACE :

One side matt and other side bright.

WINDING :

Bright side out or dull side out.

THICKNESS :

0.007 mm, 0.008mm, 0.009 mm and 0.012 mm

THICKNESS TOLERANCE :

± 8% over nominal thickness.

PINHOLE COUNT :

FOIL THICKNESS (MM) AVERAGE PINHOLES (PER SQ. M) MAXIMUM
0.007 400 700
0.008 200 500
0.009 <100 200
0.012 <50 150

On request, better pinhole count can be maintained.

WETTABILITY (SURFACE TENSION) :

A to C or to withstand 68 to 72 dynes (i.e. 70 ± 2 dynes) on either face of foil.

STICKNESS :

Material shall fall freely on 1.5 m length load.

SPLICING :

Shall be made of smooth ultrasonic welding through out the web width.

NUMBER OF SPLICING :

Average number of splices per roll shall not exceed 2 whereas maximum number of splices in a roll is 3 and the permissible frequency of occurrence will not exceed the limit shown below:
Consignment size having 3 splices
Maximum number of rolls
1-10 rolls
2
11-30 rolls
4
31-50 rolls
6
IDENTIFICATION OF JOINTS: All splice joints will be flag marked for easy identification.
CORE MATERIAL: Aluminium or Steel
CORE LENGTH & I.D.: Flush or Protruded with 76 mm (+/-0.5 mm), 102 mm (+1.5/-0.5 mm) or 152 mm ID (+2.5 / 0.5 mm)
REEL OD: 700 mm maximum
ROLL WIDTH: 950 mm maximum ± 1 mm.
FINNING: Finning caused by web misalignment shall not exceed 2 mm and shall not occur more than once in every three rolls
IDENTIFICATION: Each reel is identified with a ticket having reel number, specification, operator number and manufacturing date.
PACKING: Rolls individually wrapped, placed in top bottom combination wooden boxes with Silica Gel packets and making as specified by customer.
TEST CERTICATES: Test certificate incorporate (a) Thickness (b) Width (c) Wettability and (c) Number of joints. Any other information sought by the customer can also be given