FILCO polyurethane film formers, non-reactive non-ionic
Seven aliphatic polyurethane dispersions, all hydrazine free. Non-yellowing films, wide pH stability, moisture and impact resistance, with grades matched to PBT, PA6 and wet service.
Seven aliphatic polyurethane dispersions, all hydrazine free. Non-yellowing films, wide pH stability, moisture and impact resistance, with grades matched to PBT, PA6 and wet service.
Polyurethane is the sizing chemistry you reach for when the film has to stay tough and stay clear. COIM's non-reactive non-ionic family is aliphatic and hydrazine free across all seven grades, and it is the largest single family in the FILCO range.
Aliphatic matters because aromatic polyurethanes yellow under UV. COIM lists non-yellowing films as an application characteristic, alongside improved stability across a wide pH range, resistance to moisture and impact resistance. Hydrazine free matters for a different reason: hydrazine is a CMR substance and its absence removes a regulatory question from the size formulation.
The seven grades are selected by polyol. FILCO 547 is the all-purpose polyester-polyol at 45 percent solids. FILCO 540 is the polycarbonate-polyol with increased tensile strength. FILCO 8000 is a polyester-polyol published for no discoloration. FILCO 8102 is the other increased tensile strength grade.
Three grades are matched to specific problems. FILCO 7601 carries a 104 degree F Tg and is published for PBT. FILCO 7805 is polycaprolactone polyol for increased compatibility with PA6. FILCO 8111 is polyether-polyol with high hydrolysis resistance, at the coarsest particle size in the family at 1700 nm.
It is also written as polyurethane dispersion sizing, PUD film former, aliphatic polyurethane dispersion, and thermoplastic sizing.
| Property | Typical value |
|---|---|
| Chemistry | Aliphatic polyurethane dispersions, non-reactive and non-ionic |
| Hydrazine | Hydrazine free across the family |
| Carrier | Water based, non ionic |
| Solids content | 40 to 51 percent depending on grade |
| Average particle size | 400 to 1700 nm depending on grade |
| Tg range | Minus 40 to 109 degrees F, the widest span in the range |
| Film character | Non-yellowing, moisture resistant, impact resistant |
| Published grades | 7 |
| Matrix | Thermoplastic |
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 ship a sample from North American stock.
| Grade | Polyol | Solids | Av. particle size | Tg | Main features |
|---|---|---|---|---|---|
| FILCO 547 | Polyester | 45 percent | 500 nm | Minus 4 degrees F | All-purpose |
| FILCO 540 | Polycarbonate | 40 percent | 650 nm | 0 degrees F | Increased tensile strength |
| FILCO 7601 | Not stated | 40 percent | 500 nm | 104 degrees F | High Tg, for PBT |
| FILCO 7805 | Polycaprolactone | 40 percent | 700 nm | Minus 40 degrees F | Increased compatibility with PA6 |
| FILCO 8000 | Polyester | 40 percent | 450 nm | Minus 22 degrees F | No discoloration |
| FILCO 8102 | Not stated | 40 percent | 400 nm | Not determined | Increased tensile strength |
| FILCO 8111 | Polyether | 51 percent | 1700 nm | 109 degrees F | High hydrolysis resistance |
Values are the manufacturer's published typical figures. Ask for the current technical data sheet on any grade and we will send it with the matching safety data sheet.
FILCO 7805, polycaprolactone polyol, published for increased compatibility with PA6.
FILCO 7601, at a 104 degree F Tg, the grade COIM names for PBT.
FILCO 8111, polyether polyol with high hydrolysis resistance.
FILCO 8000, published for no discoloration, and the non-yellowing aliphatic backbone across the family.
Impact resistance is a stated characteristic of the family, with FILCO 540 and 8102 for increased tensile strength.
It is specified where the formulation needs aliphatic and non-yellowing, so the part does not discolor under UV, hydrazine free across all seven grades, stable across a wide pH range, which widens what the size bath can carry, polyol selectable, with polyester, polycarbonate, polycaprolactone and polyether options, and a 149 degree F span of Tg across the family, from minus 40 to 109.
Applied at the forming line in a sizing bath. Polyurethane dispersions tolerate a wider pH range than most film formers, which is what makes them easier to combine with other size components.
Select on the polyol before anything else. It sets compatibility with the matrix polymer, and a polyester-polyol film in a wet application is the usual cause of a hydrolysis failure. FILCO 8111 is the polyether answer to that.
Tg spans minus 40 to 109 degrees F across the family. That is a wide enough range that two grades from the same family will behave very differently at line temperature, so name the process conditions.
Package sizes: Made to order in the pack size the line needs. Tell us the volume and we will confirm..
Storage: Store in the original sealed container, protected from frost and from direct sun. Freezing destroys a water based dispersion permanently. Confirm the shelf life on the current data sheet for your grade.
Read the safety data sheet before handling. We supply the current SDS with every grade.
Aliphatic polyurethanes do not yellow under UV, which aromatic ones do, so the part keeps its appearance. Hydrazine free is a regulatory point rather than a performance one: hydrazine is a CMR substance, and a chain extender that avoids it takes a question off the table for the size formulation.
FILCO 7805. It is the polycaprolactone polyol grade and COIM publishes it specifically for increased compatibility with PA6.
FILCO 8111, the polyether-polyol grade with high hydrolysis resistance. Polyester polyols hydrolyze in sustained wet heat, which is why the polyether grade exists. Tell us the temperature and the duration and we will confirm with COIM.
These grades stay as they are supplied. The reactive family carries blocked isocyanate that unblocks at 266 to 320 degrees F and crosslinks, which raises temperature and hydrolysis resistance further. Choose reactive when the process reaches the unblocking temperature and you want that crosslink.
Yes. Tell us the matrix polymer, the process and the service conditions and we will send the current technical data sheet with the matching safety data sheet, and arrange sample material.
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 anionic pair at 60 percent solids, for a different bath chemistry.
The blocked isocyanate grades, where crosslinking raises the ceiling.
The epoxy route into PET, PBT and polycarbonate.
What a film former does in a sizing, and how the chemistries divide.
The selection logic, worked through on the carbon side.