Flame retardant (Alumiminium hydroxide)

Flame retardant (Alumiminium hydroxide)

Aluminum hydroxide is considered the world's most important mineral flame retardant. It is halogen-free and environmentally friendly.

Properties:

  • Easy to mix in
  • Highly flame retardant (water splitting at 200 °C)
  • Low hardness 3
  • Density 2.4 g/cm3
  • High whiteness (Y color value >94)
  • Coefficient of thermal expansion 15*10-6K-1 (at 20 - 300 °C)

Technical data:
Chemical composition: Al(OH)3 99.6 %, Fe2O3 0.01 %, SiO2 0.008 %, Na2O 0.32 %
Humidity: 0.15 %.
Grain size: Average grain size 1.0 μm + 325 mesh < 0.1 %.
Bulk density (kg·m−3): (loose) 0.25, (packed) 0.6
Oil count: 59 ml/100 g
Whiteness: 96 %
pH value (Mixture for pH measurement 30 % flame retardant in water, at room temperature): 9 - 10
Specific gravity: 2.42
Refractive index: 1.57
Hardness (Mohs): 3

Application:
As a flame retardant for epoxy resins (casting and laminating resins, gel coats).

Addition rates:
25-50 % by weight (25 % in laminates, up to 50 % in topcoats). Preliminary tests for the specific application are recommended.

Structure of the laminate in the film:
1) 8 layers of glass fabric tape 220 g/m2 (Art. No. 2001131)
2) laminating resin epoxy resin L + hardener S + 25 % aluminum hydroxide

Customer review:
"The aluminum hydroxide powder was easily and homogeneously mixed into the resin/hardener mixture. Laminating the plies was trouble-free. The resin was given a milky color by the addition and became slightly thixotropic (non-runny, stable)."

R&G

Flame retardant, tin/ 200 g

Item no.  2102001 25 in stock  (delivery time 1-2 days)

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7,59 
15,18 
(Base Price 37,95 € /  kg)
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Flame retardant, tin/ 450 g

Item no.  2102002 14 in stock  (delivery time 1-2 days)

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14,10 
28,19 
(Base Price 31,33 € /  kg)
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Flame retardant, tin/ 1 kg

Item no.  2102003 12 in stock  (delivery time 1-2 days)

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25,43 
50,86 
(Base Price 25,43 € /  kg)
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Instructions for use
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Videos

Hazards identification - Flame retardant (Alumiminium hydroxide)

Hazard components for labelling

aluminium hydroxide fine

Signal word: Warning

Pictograms:

GHS07

Hazard statements

H315 Causes skin irritation.
H319 Causes serious eye irritation.
H335 May cause respiratory irritation.

Precautionary statements

P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P280 Wear protective gloves / protective clothing / eye protection / face protection.
P302 P352 IF ON SKIN: Wash with plenty of water.
P304 P340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing.
P305 P351 P338 IF IN EYES: Rinse continuously with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing.
P312 Call a POISON CENTER or doctor / physician if you feel unwell.
P501 Dispose of waste according to applicable legislation.