Exolit FP 2100JC belongs to a family of flame retardants shaped for performance in plastic and polymer processing, where fire safety stays at the top of the list. It is based on ammonium polyphosphate, a phosphorus-based chemical compound, not chlorine so it steers clear of toxic halogenated emissions when heated. Folks working with thermoplastics, coatings, and fiber-reinforced materials use FP 2100JC to push up fire resistance in products from electronics housings to automotive components. Away from technical jargon, this is the kind of ingredient you find in things that manufacturers don’t want catching fire, like circuit boards or cable insulation.
You find Exolit FP 2100JC most often as a white solid, delivered either in fine powder or prill (compact pearl-like granules). The powder flows well and easily wets with typical water or polymer binders, which manufacturers like for smooth dosing in automated mixing systems. Bulk density generally measures around 0.7–0.9 g/cm³. As a crystalline compound, it stays stable during standard shipping and storage, showing low solubility in water—in plain terms, it won’t suddenly dissolve or clump up if left in a humid warehouse. This helps storage managers avoid sticky headaches or disruptions along the production line. Looking closer at its chemical structure, the molecular formula clocks in at (NH₄PO₃)n, with the polymerization degree boosting its stability under processing heat. The median particle size sits in the range of 15–20 microns, which means it blends efficiently without leaving visible specks in transparent or pigmented plastics.
Production calls for precise specs. Exolit FP 2100JC typically contains more than 31% phosphorus by weight, which punches up its ability to snuff out flames by supporting char formation on burning plastics. The content of nitrogen edges close to 14%, coming from the ammonium groups locked inside the polymer chain. If you spot black specks or unreacted raw materials, something’s off in the batch—quality control labs keep the purity and granulation consistent, so nothing interferes with extrusion or molding. The bulk product comes free-flowing, which avoids problems in hoppers and conveyors, and it resists caking better than earlier types of phosphate additive. Moisture content falls well below 0.5%, tightening process controls during compounding. Large buyers get it in multi-layered bags or big-bags, sometimes with inner PE liners for extra insurance against humidity.
For customs and shipping, Exolit FP 2100JC falls under HS Code 2835.39, which covers polyphosphates, excluding sodium polyphosphates. Border agents recognize this classification worldwide, so clearing shipments doesn’t turn into a paperwork struggle. While phosphorus-based chemicals often spark questions about environmental impact, this one doesn’t easily leach or break down into toxic byproducts; without halogens, it skips many of the risks flagged by ECHA or EPA. You often see declarations of RoHS and REACH compliance in its paper trail, signaling that the additive won’t trigger unwanted red tape for electronics or consumer-goods makers.
The powder form is nearly odorless and doesn’t emit detectable fumes under ambient conditions. During extrusion or molding, it holds up to processing temperatures as high as 240°C before it starts to react, and that gives compounders breathing room for most thermoplastic systems. It isn’t volatile in the workplace, so you won’t find it evaporating from open drums or finished mixtures. Solubility stays under 0.1% in cold and hot water, which matters most for coatings and adhesives, where excess migration into layers can cause stickiness, clouding, or phase separation.
Specific gravity measures right around 1.9 g/cm³, heavier than many standard polymer matrices. This density means it tends to stay sunk in a viscous blend and won’t separate out during molding or continuous extrusion. Handling instructions usually flag it as non-flammable and lightly irritating only for those with highly sensitive skin or respiratory systems. It avoids severe hazard pictograms, not classed as a carcinogen or acutely toxic, so workers face much lower risks compared to older flame retardants based on halogen or antimony. For spills or dust clouds, normal dust masks and local exhaust fans do the job, rather than expensive full hazmat kits. Finished parts made with FP 2100JC often pass biocompatibility screens, making it an acceptable pick for electrical devices kept in homes, offices, and schools.
Starting ingredients for Exolit FP 2100JC come from ammonia and liquid phosphoric acid. The process calls for controlled polymerization, driving off unreacted ammonium and water vapor through steady heat and vacuum. Final steps screen out oversized crystals and filter away trace iron or silicate impurities. The manufacturer then grinds or prills the bulk material, setting the final product’s flow and storage profile. Careful tweaks in the granulation step control whether the batch ends up in a dust-like powder for injection molding or a crisp, round pellet tailored for large-scale compounding. By avoiding metal stabilizers or process oils, the raw material list stays slim, lowering the introduction of unwanted side-reactions in downstream applications.
What’s valuable about Exolit FP 2100JC is its long-chain polyphosphate structure. Each chain acts as a slow-release barrier during fires, locking in phosphorus and supporting char formation instead of feeding the flame. This means treated plastics and resin systems don’t just resist ignition—they form a solid, insulating layer that guts the spread of heat and blocks further burning. Because it melts only at higher temperatures, FP 2100JC dodges the curse of early decomposition, which can compromise impact resistance or color in molded parts. Folks in processing plants know this difference by the way the additive weaves into molten resins without bubbling or discoloring under typical temperatures.
While it’s safer than legacy options like decaBDE or antimony trioxide, Exolit FP 2100JC still lands on the chemical management radar for potential eye and lung irritation when overexposed to dust. Safety data sheets recommend closed feeding systems, catch-baskets under hopper openings, and prompt clean-up of spills with a commercial vacuum. It doesn’t run or bleed through finished plastics under sun exposure, so outdoor products keep their color and gloss. Waste fines or off-spec lots classify as non-hazardous, so regular industrial disposal works for bulk clean-up. Disposal in landfills or through incineration doesn’t lead to dioxin release or heavy metal leaching, letting plant managers breathe a lot easier. On the regulatory side, regular monitoring keeps phosphorus run-off in line, since excess levels can challenge water treatment systems. Suppliers back up shipments with batch-specific certificates, which detail phosphorus/nitrogen content, mean particle size, and hazard class, letting manufacturers verify fast before blending.
