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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Product 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

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DISCLAIMER: The technical information contained herein is the result of extensive testing in the manufacturer’s laboratories. In addition any application advice given verbally, in writing or by testing corresponds to the best of our knowledge and belief. Since the use and application of any of our products lies beyond our area of control, it remains the responsibility of the user to verify the product’s suitability for their application.

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