| * |
Polypropylene |
Polyester |
Acrylic |
Fiberglass* |
Aramid |
PPS |
P84*** |
PTFE *** |
| Max. Continuous Operating Temperature |
170° F
(77° F C)
|
275° F (135° C) |
265° F (130° C) |
500° F
(260° C) |
400° F (204° C) |
375° F (190° C) |
500° F (260° C) |
500° F (260° C) |
| Abrasion |
Excellent |
Excellent |
Good |
Fair |
Excellent |
Good |
Fair |
Good |
| Energy Absorbtion |
Good |
Excellent |
Good |
Fair* |
Good |
Good |
Good* |
Good |
| Filtration Properties |
Good |
Excellent |
Good |
Fair |
Excellent |
Good |
Excellent |
Fair |
| Moist Heat |
Excellent |
Poor |
Excellent |
Excellent |
Good |
Good |
Good |
Excellent |
| Alkalines |
Excellent |
Fair |
Fair |
Fair |
Good |
Excellent |
Fair |
Excellent |
| Mineral Acids |
Excellent |
Fair |
Good |
Poor** |
Fair1 |
Excellent |
Good |
Excellent |
| Oxygen (15%+) |
Excellent |
Excellent |
Excellent |
Excellent |
Excellent |
Poor2 |
Excellent |
Excellent |
| Relative Cost |
$ |
$ |
$$ |
$$$ |
$$$$ |
$$$$$ |
$$$$$$ |
$$$$$$$ |
* Sensitive bag-to-cage fit
| Non-Fiberglass |
Finish Purpose |
Available For |
| BHA-TEX® PTFE Membrane |
For capture of fine particulate, improved filtration efficiency,
cake release, and airflow capacity |
Aramid, Polyester, Acrylic, P84, PPS, Polypropylene (felt
and woven) |
| Singe |
Recommended for improved cake release |
Polyester, Polypropylene, Acrylic, Aramid, PPS, P84 (felts) |
| Glaze/Eggshell |
Provides short-term improvements for cake release (may
impede airflow) |
Polyester, Polypropylene (felts) |
| Silicone |
Aids initial dustcake development and provides limited
water repellency |
Polyester (felt and woven) |
| Flame Retardant |
Retards combustibility (not flame-proof) |
Polyester, Polypropylene (felt and woven) |
| Acrylic Coatings (Latex base) |
Improved filtration efficiency and cake release (may impede
flow in certain applications) |
Polyester and Acrylic felts |
| PTFE Penetrating Finishes |
Improved water and oil repellency; limited cake release |
Aramid (felt) |
| Fiberglass |
Finish Purpose |
Applications |
| BHA-TEX® PTFE Membrane |
For capture of fine particulate, improved filtration efficiency,
cake release, and airflow capacity |
Cement/lime kilns, incinerators, coal-fired boilers, cupola,
ferro silica/alloy, furnace |
| Silicone, Graphite, Teflon |
Protects glass yarns from abrasion, adds lubricity |
For non-acidic conditions, primarily for cement and metal
foundry applications |
| Acid Resistant |
Shields glass yarn from acid attack |
Coal-fired boilers, carbon black, incinerators, cement,
industrial, and boiler applications |
| Teflon® PTFE B |
Provides enhanced fiber to fiber resistance and limited
chemical resistance |
Industrial and utility base load boilers under mild pH
conditions |
| Blue Max CRF-70® |
Provides improved acid resistance and reduces fiber to
fiber abrasion, resistant to alkaline attack, improved fiber
encapsulation |
Coal-fired boilers (high and low sulfur) for peak load
utilities, fluidized bed boilers, carbon black, incinerators |