Exolit® AP 750

Exolit® AP 750 is a non-halogenated flame retardant based on ammonium polyphosphate as main component, which develops its effectiveness through phosphorus/nitrogen synergism. In contrast to similar competitive material, it shows high processing stability. Exolit® AP 750 differs in its mode of action from non phosphorus-based flame retardants (e. g. brominated, chlorinated or mineral FRs like ATH) by achieving its effect through intumescence. Material containing Exolit® AP 750 will foam on exposure to flame. The carbon-rich foam layer so formed will protect the polymer and in many cases the substrate below through its heat-insulating effect, reduces further oxygen access and prevents dripping in case of a thermoplastic based formulation. Beyond the primary effects on fire behavior such as reduction of flame propagation rate, rate of heat release, dripping behavior, residual lengths of test specimens after flame tests etc., positive secondary fire effects such as low smoke density, no release of corrosive off-gasses, lower formation of toxic smoke gasses are of great interest.

Principal: Clariant Additives

Functions: Flame Retardant, Flame Retardant

Chemical Family: Chemical Mixtures & Blends

End Uses: Gelcoat

Compatible Polymers & Resins: Thermoplastic Polyolefins (TPO)

Labeling Claims: Butyl Benzyl Phthalate (BBP)-free, Cadmium-free, Conflict Minerals-free, DEHP (Diethylhexylphthalate) Free, Dibutyl Phthalate (DBP)-free, Diisobutyl Phthalate (DIBP)-free, Halogen-free, Hexavalent Chromium-free, Lead-free, Mercury-free, Polybrominated Biphenyls (PBB)-free, Polybrominated Diphenyl Ethers (PBDEs)-free

Features: Excellent Processability, Good Anti-Drip Properties, Good Oxygen Barrier, Increased Thermal Insulation, Low Smoke Density

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Enhanced TDS

Identification & Functionality

CASE Ingredients Functions
Chemical Family
Function
Flame Retardant
Plastics & Elastomers Functions
Product Code
MITM02889
Technologies
Product Families

Features & Benefits

CASE Ingredients Features
Labeling Claims
Materials Features
Product Benefits
  • Non-halogenated flame retardant based on ammonium polyphosphate as main component, which develops its effectiveness through phosphorus/nitrogen synergism Shows high processing stability in contrast to similar competitive material
  • Differs in its mode of action from non phosphorus-based flame retardants (e. g. brominated, chlorinated or mineral FRs like ATH) by achieving its effect through intumescence
  • Particularly effective in thermoplastic polyolefins (e. g. polyolefin hotmelts), urethanes (e. g. integral skin foams, rigid foams, sealants), and epoxy resins (adhesives, sealants, structural laminates, gelcoats)
  • Positive secondary fire effects such as low smoke density, lower formation of toxic smoke or corrosive gasses
  • Non-halogenated flame retardant with favorable environmental and health profile

Applications & Uses

Coating End Applications
Compatible Polymers & Resins
Product Applications
  • Exolit® AP 750 is particularly effective in thermoplastic polyolefins (e. g. polyolefin hotmelts), urethanes (e. g. integral skin foams, rigid foams, sealants) and epoxy resins (adhesives, sealants, structural laminates, gelcoats). For epoxy resins used in Electrical/Electronics application, other Exolit products can be recommended depending on certain requirements. Please contact us to diskuss your requirements in detail.
  • Thanks to its intumescent behavior, the use of Exolit® AP 750 is particularly useful in epoxy based gelcoats or PU coatings. Beyond the reduced flammability of the gelcoat itself, the char foam created when exposed to flame may also further thermally insulate the underlaying substrate (e. g. a structural composite part). Depending on the fire test and classification to pass, the whole system (laminate + gelcoat) could pass the test by only adding Exolit® AP 750 in the gelcoat. For more demanding requirements (e. g. M1 according to NF P 92501), only minimal amounts of additional FR (e. g. ATH or Exolit AP 422) might be necessary to add into the laminates. To develop its effect, the intumescent gelcoat should be applied at a thickness of 0.5 - 1 mm.

Properties

Physical Form

Packaging & Availability

Packaging Type

Principal Information

Group Principal Number
S000004
Principal

Storage & Handling

Storage and Shelf Life Conditions
  • Exolit AP 750 should be stored at room temperature in a dry place. Partially emptied containers should be carefully resealed after use.
  • Although Exolit AP 750 is not hygroscopic by itself, it may still absorb some amounts of moisture due to its high surface area. Therefore, we recommend to store – especially opened bags – in a dry place. It is however usually not necessary to pre-dry the product before use. Minimum shelf life is 12 months from the date of shipping when stored according to the said conditions.

Other

Appearance (SDS)
Powder
Color (SDS)
White
Dust Explosion Class (SDS)
Not capable of dust explosion
Flammable Nature (SDS)
Not expected to form explosive dust air mixtures
Item Number
Odor (SDS)
Odorless
Other Hazards
None known
USA/DOT UN Number
Not Applicable
Thermal Properties
ValueUnitsTest Method / Conditions
Decomposition Temperaturemin. 250.0 °C°C
Chemical Properties
ValueUnitsTest Method / Conditions
Nitrogen Content11.5-13.5 %(W/W)%(W/W)Elemental Analysis
Shelf Life & Stability
ValueUnitsTest Method / Conditions
Shelf Life12.0 momo
Physical Properties
ValueUnitsTest Method / Conditions
Bulk Density0.6 g/cm³g/cm³value after filling
Density1.8 g/cm³g/cm³
Moisture Content0.5 %(W/W)%(W/W)
Material Composition
ValueUnitsTest Method / Conditions
Phosphorus Content20.0-22.0 %(W/W)%(W/W)Photometer after oxidizing dissolution
SDS Physical and Chemical Properties
ValueUnitsTest Method / Conditions
Autoignition Temperature (SDS)752.0 °F°FDIN VDE 0165
Bulk Density (SDS)600.0 kg/m³kg/m³DGF H-II 1b at 20°C
Burning Number (SDS)1.0-Does not catch fire
Decomposition Temperature (SDS)min. 482.0 °F°FDifferential Scanning Calorimetry heating rate 10 K/min
Density (SDS)1.8 g/cm³g/cm³at 25°C
Solubility In Water (SDS)10.0 g/Lg/Lat 25°C
pH (SDS)6.5-at 20°C
pH (SDS)approx. 6.5-at 25°C, 100 g/L