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HFFR Compound for ACP


Halogen – Free – Flame – Retardent (halogen free flame retardant compound STOPFIRE FR-12)
Because of safety and Uniform Building Code (UBC) problems of highrise building over the past several years for the concerning about Aluminium composite panel, particularly using halogen free flame retardant compound for core layer, MNC see an opportunity to develop the halogen free flame retardant compound for Aluminium composite panel FR-12 which features superior flame retardancy without emit toxic gases or halogen gases and also shows the excellent flame retardancy with very low smoke property. It is ideal for many applications requiring a self extinguishing structural ACP system.
Moreover, FR-12 can be formed by various processing methods such as single screw extruder, twin screw extruder injection molding, compression molding, etc. with temperature range of 150°C up to 250°C. For Aluminium Composite Panel products, FR-12 can be adhered with adhesive layer and achieve very high peeling strength.

Features of Halogen Free Flame Retardant Compound for Aluminium Composite Panel

1. Excellent flame retardance
2. Good sound deadening property
3. Easy extrusion for Aluminium composite panel
4. High adhesion strength between core layer and Aluminium skin
5. Meets UL 94-V-0
6. Passes UBC 26-9, BS 476, DIN 4102 Class B1, ASTM E 119
7. Does not contain Brominated or Antimony - based retardants


Thermoplastic Elastomer : 28 %
Metal hydrate flame retardants: 71 %
Additive: 1 %


Formulation and Compounding of Halogen Free Flame Retardant Compound STOPFIRE FR-12

Physical Properties: TYPICAL VALUE
Test Test Method Unit FR-12

Density ASTM D1505 g/cc 1.50 ± 0.05

MFI @ 190°C Load 10 kg. ASTM 1238 g/10min 10 to 15

Tensile strength ASTM D638 kg./cm2 60

Elongation ASTM D638 % 150

Hardness ASTM D2240 shore D 54 ± 2.0

Flame retardince rating UL-94V Class V 0

Uniform Building code UBC26-9 - PASSED
* Reaction of Firetest DIN 4102 Class B1
* Fire rating Test ASTM E119
PASSED 2 hours
* Ignitability BS-476 PART 5 Class PASSED
* Fire Popagation BS-476 PART 6 Class Class 0
* Surface Spread of Flame BS-476 PART 7 Class Class 1
* Steiner Tunnel Test ASTM E84 Class Index 0
* Toxic Fumes during Burning ISO-TR9122-3
* Peeling Torque (before boiling) ASTM D1781 mm-N/mm 453
* Peeling Torque (after 8 hrs. boiling) ASTM D1781 mm-N/mm 421

Note = * Aluminium Composite panel thickness 4.0 mm. Al 0.5 both side with HFFR core layer by STOPFIRE FR-12

How to storage and handling STOPFIRE FR-12

Halogen Free Flame Retardant Compound STOPFIRE FR-12 is hygroscopic materials; namely it is moisture-absorbing. If moisture content is very high, preheating auxiliary equipment should be necessary to reduce moisture content. The desiccant dryer (Dehumidifier equipment) is highly recommended. Depend on surrounding moisture and temperature, 2-4 hrs drying time is appropriate at 60°C - 80°C.


25kg/bag PP woven bag with PE liner/paper bag with PE liner
1000kg/bag, Jumbo bag


Store product indoor at 60 - 80 °F ( 16°C-27°C ) for maximum storage life. Higher temperatures reduce normal storage life. Lower temperature may cause increased processing temperature in extruder. Rotate stock on a first in first out basis.


This is not dangerous product. Please make sure there are covers avoid raining and moisture during transportation.

Shelf life

When stored in the original, unopened bag at the storage conditions, STOPFIRE FR-12 has shelf life of 12 months from the date of shipment from MNC.
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