Exolit® AP 740 S

Exolit® AP 740 S 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 S differs in its mode of action from chlorine or bromine containing flame retardants by achieving its effect through intumescence and has compared to Exolit® AP 740 a reduced water uptake. 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: Polyphosphates

End Uses: Gelcoat

Compatible Polymers & Resins: Acrylics, Phenolic Epoxy Resin, Polyesters

Labeling Claims: Halogen-free

Features: Free-flowing, Good Oxygen Barrier, Increased Thermal Insulation, Low Smoke Density, Low Water Uptake

Safety Data SheetTechnical Data Sheet
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Enhanced TDS

Identification & Functionality

CASE Ingredients Functions
Flame Retardant
Chemical Family
Polyphosphates
Function
Flame Retardant
Plastics & Elastomers Functions
Flame Retardant
Product Code
MITM13033
Technologies
CASE,
Plastics
Product Families
CASE — Additives
Functional Additives
Plastics — Polymer Additives
Flame Retardants

Features & Benefits

CASE Ingredients Features
Free-flowing,
Good Oxygen Barrier,
Increased Thermal Insulation,
Low Smoke Density,
Low Water Uptake
Labeling Claims
Halogen-free
Materials Features
Low Smoke Density,
Low Water Uptake,
Oxygen Barrier,
Thermally Insulating
Product Benefits
  • Non-halogenated additive flame retardant 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
  • By its addition in unsaturated polyester gel coats, important standards like DIN EN 13501-1 or DIN 5510 S4 SR2 ST2, EN 45545-2 can be passed
  • Can be used alone or in combination with synergists like aluminum hydroxide in composites
  • Very effective in methacrylate-stirene dissolved unsaturated polyester resins
  • Non-halogenated flame retardant with favorable environmental and health profile

Applications & Uses

Coating End Applications
Gelcoat
Compatible Polymers & Resins
Acrylics,
Phenolic Epoxy Resin,
Polyesters
Product Applications
  • Intumescent coatings
    • Exolit® AP 740 S 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 S a low smoke density is achieved. By the addition of Exolit AP 740 S 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 S can be used alone or in combination with synergists like aluminum hydroxide.
  • Formulations and achievable flame retardant effect
    • Exolit® AP 740 S is very effective in methacrylate-stirene dissolved unsaturated polyester resins.
      • Classifications:
        • UL 94 V-0 (1.6 mm): > 30 phr* Exolit AP 740 S
        • DIN 5510 S4 SR2 ST2: > 30 phr* Exolit AP 740 S
        • NF 92-501 class M1: > 50 phr* Exolit AP 740 S
        • DIN EN 13501-1: > 75 phr* Exolit AP 740 S
        • ABD 0031 Airbus Industries requirements for interior parts: Passed with 50 phr
        • EN 45545-2: ≥ 100 phr*
    • Exolit® AP 740 S In stirenic unsaturated polyester resins Exolit AP 740 S can be combined with aluminum hydroxide to reduce the overall filler content necessary to pass different flammability standards. In these systems, Exolit AP 740 S 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
Powder

Packaging & Availability

Packaging Type
Bags

Principal Information

Group Principal Number
S000004
Principal
Clariant Additives

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
ITM17260
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 Content22.0-24.0 %(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 Content17.0-19.0 %(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
Burning Number (SDS)1.0-Does not catch fire
Decomposition Temperature (SDS)min. 200.0 °C°CDifferential Thermal Analysis heating rate 5 K/min, start of decomposition
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, concentration 10 g/l