technical NOTES

glass with PTFE membrane is suitable for PJBH as well as RABH application.
The shelf life of glass fiber with PTFE membrane bags is only 6 months there
by it is not advisable to keep more inventory.

S. N. Type of Fiber Relative cost

1 Polyester 1.0

2 Acrylic 1.6

3 Polypropylene 1.2

4 Fiber Glass 1.5-2.5

5 PTFE 6.0-8.0

6 Polyimide (P84) 4.6

Glass Bags with PTFE Membrane for Kiln Raw Mill Application

S.N. Head UOM Requirement for

Pulse Jet

Requirement for

Reverse Air

A. Fabric

1 Woven Glass Fabric

Origin

Country /

Company BGF / JPS BGF / JPS

2 Base Fabric

NA Acid Resistant Woven Fibre Glass

Acid Resistant

Woven Fibre

Glass

3 Specific Weight

of Fabric + PTFE

Laminate

Gm/M2 745 + 1% / -0.5 % 340 + 1% / -0.5 %

4 Fabric Construction NA Double Faced Filling Double Faced

Filling

5 Treatment NA Heat Cleaned Heat Cleaned

6 Filament Type NA Continuous Continuous

7 Fabric Count (W X F) 48 X 40 Minimum 24 X 20

8 Nominal Thickness MM Supplier to confirm (>

0.89)

Supplier to

confirm (0.4mm)

9 Mullen Burst

Strength kg/cm2

Supplier to confirm

(> 56)

Supplier to

confirm (>30)

10 Tensile Strength

(Wrap) (Kg/2.5CM)lbs/in Supplier to confirm (Maximum)

Supplier

to confirm

(Maximum)

11 Tensile Strength

(Fill) (Kg/2.5CM)lbs/in Supplier to confirm (Maximum)

Supplier to

confirm

(Maximum)

12 Thermal Stability NA < 1 % Shrinkage @

260 Deg. for 2 Hr.

< 1 % Shrinkage @

260 Deg for 2 Hr.