An anionic polyester-polyurethane film former at moderate stiffness, 8 MPa at 100 percent modulus and 300 percent elongation, with very good abrasion resistance and electrostatic dissipation. 33.5 percent solids, for continuous and chopped glass, basalt, mineral and carbon fiber, virgin or recycled.
FILCO D2496 is an anionic polyester-polyurethane waterborne dispersion used as a film former in sizings for continuous and chopped glass, basalt, mineral and carbon fiber, virgin or recycled. COIM publishes it at 33.5 percent solids and pH 8.0.
Its dried film sits in the middle of the family. At 8 MPa 100 percent modulus, 19 MPa tensile strength and 300 percent elongation at break on ASTM D1708, COIM lists it as moderate stiffness, with very good abrasion resistance and high strand and tow integrity that is still easy to disperse and wet during application.
That middle position is the practical starting point on a chopping line. It is stiff enough to hold a consolidated bundle against fuzz and splaying, and extensible enough that the cut does not run brittle and dusty. FILCO 547 sits below it at 2 MPa and D2594 and D2476 above it at 12 and 20 MPa.
The anionic dispersion is published for enhanced electrostatic dissipation, high shear stability and compatibility with anionic or non-ionic bath additives. The matrix side is nylon, polyurethane and polycarbonate.
It is also written as FILCO FD2496, FD2496, D2496 sizing, anionic polyurethane dispersion, polyester polyurethane film former, and moderate stiffness carbon fiber sizing.
| Property | Typical value |
|---|---|
| Appearance | Opalescent liquid |
| Solid content | 33.5 percent |
| pH | 8.0 |
| 100 percent modulus | 8 MPa, ASTM D1708 |
| Tensile strength | 19 MPa, ASTM D1708 |
| Elongation at break | 300 percent, ASTM D1708 |
| Dispersion type | Anionic |
| Backbone | Polyester-polyurethane |
| Fibers | Glass, basalt, mineral, carbon, virgin or recycled, continuous or chopped |
Typical values from the manufacturer's technical data sheet. They describe the product, they are not a specification. We will send the current TDS and the batch documentation your qualification needs.
Tell us the binder system, the property you are targeting, and the volume you expect. We will confirm the grade, send the documentation, and get a sample of the candidate grade to you.
Moderate stiffness holds a consolidated bundle without a brittle cut, the usual first trial point on a converting line.
Published for virgin or recycled fiber. Reclaimed fiber needs a film that restores bundle integrity and feedability.
High compatibility with nylon, polyurethane and polycarbonate matrices.
Published for the same fiber scope as the polyurethane family, so one grade can run across reinforcements.
Anionic electrostatic dissipation plus high tow integrity work on loose filament from two directions.
It is specified where the formulation needs moderate stiffness, 8 MPa at 100 percent modulus and 300 percent elongation, very good abrasion resistance, anionic, with enhanced electrostatic dissipation for chopping and converting lines, high strand and tow integrity that still wets and disperses easily during application, and published for virgin or recycled carbon fiber, and for glass, basalt and mineral.
Applied at the fiber line or in a re-sizing bath. The anionic dispersion is published with high shear stability and is compatible with anionic or non-ionic additives. Confirm compatibility before adding a cationic component.
Selection runs matrix first, then stiffness. FILCO D2496 is the moderate reference point. Move to D2594 or D2476 for a stiffer, more compact bundle, or to FILCO 547 for a soft, extensible one.
The film is thermoplastic and non-reactive. Where the process should crosslink the film, look at the reactive polyurethane family instead.
Package sizes: Made to order in the pack size the line needs. Tell us the volume and we will confirm..
Storage: Store in closed containers away from direct sun at 41 to 86 degrees F. Maximum suggested storage is 12 months from production in the original package, after which the product must be rechecked. Freezing destroys the dispersion permanently.
Not classified as dangerous under Regulation EC 1272/2008 (CLP) and not regulated for transport. The safety data sheet notes the material can accumulate static charge during handling. Read the SDS before handling. We supply the current SDS with every shipment in the manufacturer's current revision.
In the middle. COIM publishes 8 MPa at 100 percent modulus and 300 percent elongation at break, listed as moderate stiffness. FILCO 547 is the soft grade at 2 MPa, D2596 sits just above at 9, D2594 at 12 and D2476 at 20.
Backbone. D2496 is a polyester-polyurethane and D2596 a polyether-polyurethane, at nearly the same published stiffness, 8 against 9 MPa. D2496 is also published for glass, basalt and mineral fiber as well as carbon, where D2596's data sheet names carbon only.
It is the natural first trial point in the family. Moderate stiffness holds a consolidated bundle against fuzz without the brittle, dusty cut a very stiff film can give. Run a counted chop trial against your incumbent, changing only the sizing.
Yes. COIM publishes it for continuous and chopped carbon fiber, virgin or recycled.
Yes. Tell us the fiber, the matrix, the cutter and the failure mode, and we will send the current technical data sheet with the matching safety data sheet and arrange sample material for the trial.
Yes. We send the Technical Data Sheet (TDS) and Safety Data Sheet (SDS) on request, in the manufacturer's current revision. Use Request TDS or SDS above and tell us what your qualification review needs.
The polyether sibling at 9 MPa, published for carbon fiber.
The soft non-ionic reference, 2 MPa at 650 percent elongation.
The stiffest grade with a current data sheet, 20 MPa on a polycarbonate backbone.
The full published roster with film stiffness on every grade.
What a film former does in a sizing, and how the chemistries divide.
What film stiffness does to cutting force, fuzz and blade wear on a converting line.
What pyrolysis strips and what the re-size has to restore.
