Exolit® AP 740

Exolit® AP 740 is a white free flowing powder. It is a non-halogenated additive flame retardant based on ammonium polyphosphate which develops its effectiveness through phosphorus/nitrogen synergism. Exolit® AP 740 differs in its mode of action from chlorine or bromine containing flame retardants by achieving its effect through intumescence. The flame retarded material foams on exposure to flame. The carbon foam layer so formed protects the polymer through its heat-insulating effect and reduces further oxygen access.

Principal: Clariant Additives

Functions: Flame Retardant, Flame Retardant

Chemical Family: Ammonium Salts, Polyphosphates

End Uses: Gelcoat, Intumescent Coating

Compatible Polymers & Resins: Acrylics, Epoxies (EP), Phenolics, Polyesters, Styrenes

Labeling Claims: Halogen-free

Features: Low Smoke Density

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Enhanced TDS

Identification & Functionality

Blend
No
CASE Ingredients Functions
Chemical Family
Chemical Name
Composite Materials Functions
Function
Flame Retardant
Product Code
MITM02888
Single Ingredient
Yes
Technologies
Product Families

Features & Benefits

CASE Ingredients Features
Labeling Claims
Product Benefits
  • Non-halogenated additive flame retardant system based on ammonium polyphosphate which develops its effectiveness through phosphorus/nitrogen synergism and intumescence
  • May be used in a range of thermoset resins, especially unsaturated polyester resin, acrylic resins, epoxy or phenolics
  • Suitable both for coatings and reinforced materials
  • Low smoke density
  • In polyester gel coats, important standards like DIN EN 13501-1 or DIN 5510 S4 SR2 ST2 can be passed
  • Can be used alone or in combination with synergists like aluminum hydroxide in composites
  • Very effective in methacrylate-stirene dissolved polyester resins
  • Non-halogenated flame retardant with favorable environmental and health profile

Applications & Uses

Coating End Applications
Compatible Polymers & Resins
Product Applications
  • Intumescent coatings
    • Exolit AP 740 may be used in a range of thermoset resins, especially unsaturated polyester resin, acrylic resins, epoxy or phenolics. It is suitable both for coatings and reinforced materials. In addition to primary effects of fire such as spread of flames and residual length, secondary effects such as smoke density and formation of toxic smoke is of interest.
    • Using Exolit AP 740 a low smoke density is achieved. By the addition of Exolit AP 740 in polyester gel coats important standards like DIN EN 13501-1 or DIN 5510 S4 SR2 ST2 can be passed. In composites Exolit AP 740 can be used alone or in combination with synergists like aluminum hydroxide.
  • Formulations and achievable flame retardant effect
    • Exolit AP 740 is very effective in methacrylate-stirene dissolved polyester resins.
    • Classifications:
      • UL 94 V-0 (1.6 mm): > 30 phr* Exolit AP 740
      • DIN 5510 S4 SR2 ST2: > 30 phr* Exolit AP 740
      • NF 92-501 class M1: > 50 phr* Exolit AP 740
      • DIN EN 13501-1: > 75 phr* Exolit AP 740
  • ABD 0031 Airbus Industries requirements for interior parts: Passed with 50 phr
  • In stirenic polyester resins Exolit AP 740 can be combined with aluminum hydroxide to reduce the overall filler content necessary to pass different flammability standards. In these systems, Exolit AP 740 is normally added at 15 - 25 parts and aluminium hydroxide at 50 - 150 parts per hundred resin.
  • *phr= parts per hundred resin

Properties

Physical Form

Regulatory & Compliance

Packaging & Availability

Packaging Type

Principal Information

Group Principal Number
S000004
Principal

Storage & Handling

Storage and Shelf Life Conditions
  • Minimum shelf life is 12 months from the date of shipping when stored according to the said conditions.

Other

Appearance (SDS)
Solid
Color (SDS)
White
Explosive Nature (SDS)
Not explosive
Item Number
Odor (SDS)
Odorless
Other Hazards
None known
Oxidizing Properties (SDS)
Not oxidising
USA/DOT UN Number
Not Applicable
Thermal Properties
ValueUnitsTest Method / Conditions
Decomposition Temperaturemin. 200.0 °C°C
Chemical Properties
ValueUnitsTest Method / Conditions
Nitrogen Content21.0-23.0 %(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/cm³
Density1.8 g/cm³g/cm³At 25°C
Particle Size16.0 µmµmD50
Sieve Fractionation (Through)max. 2.0 %(W/W)%(W/W)-100 Μm
Solubility in Watermax. 3.0 %(W/W)%(W/W)at 20°C, in 10% suspension
Material Composition
ValueUnitsTest Method / Conditions
Phosphorus Content18.0-20.0 %(W/W)%(W/W)Photometer after oxidizing dissolution
SDS Physical and Chemical Properties
ValueUnitsTest Method / Conditions
Bulk Density (SDS)610.0 kg/m³kg/m³at 20°C
Decomposition Temperature (SDS)min. 200.0 °C°CDifferential Thermal Analysis
Density (SDS)1.8 g/cm³g/cm³at 25°C
Solubility In Water (SDS)max. 30.0 g/Lg/Lat 25°C
pH (SDS)9.2-at 25°C, 10 g/l
pH (SDS)9.2-