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Products for the Battery Industry:
- Absorptive microfiber glass (AGM) separators

ABSORPTIVE MICROFIBER GLASS SEPARATORS FOR SEALED LEAD ACID BATTERIES

BERNARD DUMAS (France), leading manufacturer of absorptive glass microfibre separators in Europe, offers a range of AGM SEPARATORS FOR RECOMBINANT BATTERIES to satisfy the most stringent requirements of VRLA battery manufacturers.

Special high quality glass microfibres are used in the production of our recomat absorptive separators, designed specifically for sealed recombinant batteries, maintenance-free, electric vehicles, automotive starting batteries, motorcycle and for stationary application.





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TYPE 2000, basic separator, 100% glass mat, designed for all types of SLA recombinant batteries, maintenance-free, stationary application in emergency lighting system, telephone exchange, ships, electric appliance, etc.

TYPE 6000, special separator consisting of glass microfibers and organic microfibers, sealable by nigh-frequency, ultra-sound or simple pressure without temperature, to produce envelopes in standard staking machines for SLA automotive starting batteries.

TYPE 15000, is a microfiber glass separator with synthetic fibre suitable for all kind of VRLA batteries, such as UPS, Industrial and Tracion batteries.

TYPE 7000, is a 100% microfibers glass separator with increased properties to be used in most demanding applications, such as VRLA batteries for electric vehicles.



BERNARD DUMAS separators have the following characteristics:

  • high chemical purity
  • less than 3% acid weight loss
  • high porosity and excellent electrolyte absorption (900 to 1100%)
  • high dimensional stability providing consistent mechanical properties
  • extremely low ohmic resistance
  • available in thickness from 0,8 to 3,1 mm (at 10 kPa pressure).


Paper Range

Technical Parametres
Unit
B3000 All Glass
2000 All Glass
7000 All Glass
15000 Blend
6000 Blend
10022XP Pasting
9022XP Pasting
                 
Basis weight
G/m²
150
150
150
150
150
37
37
Thickness
@ 10 kPa
Mm
1.01
0.95
0.94
0.93
0.91
0.22
0.22
Density
@ 10 kPa
G/cm3
0.148
0.158
0.160
0.162
0.165
0.171
0.168
Tensile strength
- Machine Direction

- Cross Direction

DaN/inch

DaN/inch

1.1

0.8

2.0

1.0

2.9

1.4

2.2

1.1

3.2

1.6

0.6

0.3

0.9

0.4
Elongation
- Machine Direction

- Cross Direction

%

%

3.2

6.7

2.7

6.5

2.1

5.7


2.8

6.2

3

6.6

2

5

2.3

5.4
Capillary rise
(2 minutes M.D) Sulphuric acid density 1.26
Mm
70
69
62
69
>65
55
60
Capillary rise
(24 hours M.D) Sulphuric acid density 1.26
Mm
>500
>500
>650
>550
>550
>650
>650
Average pore size
- Mini
- Maxi
- MFP


µm


4.2
18.7
8.3


4.3
15.5
6.6


2.3
10.2
4


3.5
16.3
5.8


3.8
17.2
7.2


-
-
-


-
-
-
Specific surface area
M²/g
0.9
1.13
1.45
1.12
0.95
>1.90
>1.50
Humidity
%
<1
<1
<1
<1
<1
<1
<1
Loss on ignition (organic content)
%
<1
<1
<1
8
30
<1
14

Structure of a reference

Each reference expresses the thickness of a determined series under a defined pressure

The most two frequent pressures applied on AGM in the world are:

  • 10 Kpa: we use the roman figure "X"
  • 20 Kpa: we use the roman figure "XX"AGM
    		•

    Thickness under 10 Kpa pressure



    Thickness under 20 Kpa pressure

    The first digit refers to the Series of the paper (series 2000, series 6000, s. 7000 … )
    The last 3 digits express the thickness of the paper in millimetres
    The final letter, "P" stands for pressure in Kpa.
    We will be glad to receive your inquiries (please use the FEEDBACK FORM in this web site) on specific sizes and thicknesses currently used at your plant; this will enable us to submit our best offer including a shipment of free of charge samples, to be made in accordance with your specific requirements.

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