FILCO film formers and powder binders for continuous filament mat
One film former and two catalyzed powder binders for continuous filament mat, split by how the binder is applied. Catalyst content from 0.5 to 2 percent, specified on the order.
One film former and two catalyzed powder binders for continuous filament mat, split by how the binder is applied. Catalyst content from 0.5 to 2 percent, specified on the order.
Continuous filament mat is a swirled web of unbroken filament, not chopped strand, and it is bound differently. COIM publishes three products for it, and they divide by how the binder reaches the web.
FILCO 358 is the film former, a self-emulsifiable, high reactivity unsaturated resin. COIM's note is that it disperses easily in water to form a translucent microemulsion, at 15000 mPa.s viscosity and an acid number of 10 mgKOH/g. Self-emulsifiable means it makes its own emulsion without a separate surfactant package.
FILCO 657 and 658 are the powder binders and they are the same chemistry at different particle size distributions. 657 is the coarser distribution, published mainly for dry application. 658 is the finer distribution, designed specifically for slurry application.
Both powder grades are available in catalyst contents from 0.5 to 2 percent. Catalyst content is a specification on the order, not a fixed property of the grade, so name the figure you need.
It is also written as CFM binder, continuous filament mat binder, glass mat binder, and polyester powder binder.
| Property | Typical value |
|---|---|
| Chemistry | Self-emulsifiable unsaturated polyester film former, and catalyzed polyester powder binders |
| FILCO 358 viscosity | 15000 mPa.s |
| FILCO 358 acid number | 10 mgKOH/g |
| Powder binder Tg | 104 degrees F |
| Powder binder melting point | 221 degrees F |
| Catalyst content | From 0.5 to 2 percent, specified on the order |
| Application split | FILCO 657 for dry application, FILCO 658 for slurry application |
| Published grades | 3 |
| Matrix | Thermoset |
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 | Form | Key published data | Catalyst content | Main features |
|---|---|---|---|---|
| FILCO 358 | Liquid film former | Viscosity 15000 mPa.s, acid number 10 mgKOH/g | Not applicable | Self-emulsifiable, high reactivity unsaturated resin. Disperses easily in water to a translucent microemulsion |
| FILCO 657 | Powder binder | Coarser particle size distribution. Tg 104 degrees F, melting point 221 degrees F | From 0.5 to 2 percent | Mainly for dry application of CFM |
| FILCO 658 | Powder binder | Finer particle size distribution. Tg 104 degrees F, melting point 221 degrees F | From 0.5 to 2 percent | Designed for slurry application of CFM |
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.
The swirled unbroken filament web, bound as continuous filament.
FILCO 657, the coarser distribution, published mainly for dry application.
FILCO 658, the finer distribution, designed for slurry application specifically.
FILCO 358, self-emulsifiable into a translucent microemulsion without a separate surfactant package.
Polyester powder binders serve preform work as well as mat.
It is specified where the formulation needs a grade matched to each application method, catalyst content selectable from 0.5 to 2 percent, FILCO 358 self-emulsifiable, so no separate surfactant package is needed, and a translucent microemulsion, which keeps the binder out of the appearance of the part.
Choose the powder by application method first. FILCO 657 is the coarser distribution for dry application, FILCO 658 the finer for slurry.
Catalyst content is specified on the order, from 0.5 to 2 percent. It is not a fixed property of the grade, so name the figure and do not assume a default.
FILCO 358 is self-emulsifiable at 15000 mPa.s. It is viscous as supplied, and the emulsion is made on site.
Package sizes: Made to order in the pack size the line needs. Tell us the volume and we will confirm..
Storage: Store dry in the original sealed packaging, out of direct sun. The powder binders pick up moisture and cake, which shows as uneven distribution on the mat line. FILCO 358 is catalyst-free but the powder grades are catalyzed, so confirm the shelf life on the current data sheet for your grade and catalyst level.
Read the safety data sheet before handling. Powder handling carries its own dust precautions, and catalyzed powders have their own storage requirements. We supply the current SDS with every grade.
Particle size distribution and therefore application method. 657 is the coarser distribution and COIM publishes it mainly for dry application. 658 is the finer distribution and is designed for slurry application. The chemistry, the Tg at 104 degrees F and the melting point at 221 degrees F are the same.
The range is 0.5 to 2 percent and COIM supplies to the figure you specify. It is not a default, so name it on the order. If you are moving from another binder, tell us what you run now and we will match it with COIM.
It disperses into water on its own, without a separate surfactant package, and COIM describes the result as a translucent microemulsion. That removes a formulation step and keeps the emulsifier out of the finished laminate.
Yes. Polyester powder binders serve preform work as well as mat. Tell us the preform process and the resin system and we will confirm the grade with COIM.
Yes. Tell us the mat process, the application method and the catalyst level 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 chopped strand side, on propoxylated bisphenol A.
The sizing on the roving that goes to mat.
Where translucency is the design target.
What a film former does in a sizing, and how the chemistries divide.
The selection logic, worked through on the carbon side.