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POROMAT ® 2248

POROMAT ® 2248

POROMAT ® 2248 consists of a glass mat compressed with a small amount of epoxy resin to a rigid but porous laminate.  POROMAT ® 2248 contains only a small amount of binder and is therefore porous and absorbent.

At temperatures > 60 °C or in contact with impregnating resins the laminate swells to about 150 % of the initial thickness and fills up all existing free space.  The properties of the final laminate depend on the impregnating resin and the amount of swelling.

Applications

POROMAT ® 2248 can be used in VPI systems as interlayer, spacer or filling material in different parts of electrical windings.
POROMAT ® 2248 was developed especially for impregnating resins containing accelerator or catalyst.

Format
Sheet size 1000 mm ± 50 x 1200 ± 50 mm
  1000 mm ± 50 x 600 ± 50 mm

Storability

Minimum 6 months at 20 °C
Minimum 12 months at 5 °C
Do not store above 30 °C!

Processing Advice

POROMAT ® 2248 can be cut with hammer shears.
Small strips should preferably be made out of thin laminates.

 

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Description

Properties Test Method Unit Value Value Value Value
Nominal thickness IEC 60371-2 mm 0.50 ± 0.2 0.50 ± 0.20 1.2 ± 0.2 2.2 ± 0.2
Total substance IEC 60371-2 g/m² 625 ± 116 1200 ± 216 1775 ± 321 3500 ± 636
Glass content IEC 60371-2 g/m² 435 ± 90 870 ± 170 1305 ± 255 2610 ± 510
PET-fleece (both sides) IEC 60371-2 g/m² 50 ± 6 50 ± 6 50 ± 6 50 ± 6
Organic content IEC 60371-2 g/m² 190 ± 26 330 ± 46 470 ± 66 890 ± 126
Swelling (referred to initial thickness) IPV 41 % ≤ 150 ≤ 150 ≤ 150 ≤ 150
Colour     blue blue blue blue