Polymate Additives Co., Limited
Add: 206Shi, 101Dong, Huaqiaocheng
Pukou, Nanjing, China, 210031
Tel: +86 (0)25 570 11575
Fax: +86 (0)25 570 16494
Email: polymateadditives@gmail.com
Web: www.PolymateAdditives.com
  Phenolic Antioxidants
Plaox-1010, Plaox-1076, Plaox-1098
Plaox-1024, Plaox-3114
Organophosphite Antioxidants
  Plaox-168, Plaox-626
  Amine Antioxidants
  Plaox-BODPA, Plaox-DNDPA
Plaox-DODPA, Plaox-DCDPA
  Thioester Antioxidants
  Plaox-DLTDP, Plaox-DSTDP
  Blended Antioxidants
  Plaox-B215, Plaox-B225
  Heat stabilizers
  Pherst-TPP, Pherst-ODPP
Light stabilizers
HALS (hindered amine light stabilizers)
  Palst-770, Palst-622, Palst-944
Palst-783, Palst-791
, Palst-3529
  UVA (Ultraviolet absorbents)

Pamsorb-531, Pamsorb-P
Pamsorb-234, Pamsorb-326
Pamsorb-327, Pamsorb-328
Pamsorb-1164, Pamsorb-1577

Flame retardants
Brominated Flame retardants

Plamtar-TBBA, Plamtar-BDDP
Plamtar-DBDPE, Plamtar-BTBPOE
Plamtar-HBCD, Plamtar-TTBPC

  Halogen free Flame retardants
  Plamtar-RDP, Plamtar-BDP
Plamtar-DOPO, Plamtar-DOPO-HQ
About us | Products | Service | Contact us   
Flame retardants  
    Halogen free Flame retardants    
    Plamtar-RDP | Plamtar-BDP
Plamtar-DOPO | Plamtar-DOPO-HQ
    Flame retardant Plamtar-RDP    

Chemical name: Resorcinol bis-diphenylphosphate; Phosphoric trichloride, polymer with 1, 3-benzenediol, phenyl ester
Equivalent: Reofos RDP (Chemtura) / Fyrolflex-RDP (Supresta)
Molecular formula: C30H24O8P2 (whereas n=1)
Molecular weight: 574.4 (whereas n=1)
CAS No.: 57583-54-7 & 125997-21-9

Structural formula:

Physical properties

Appearance: Colorless, slight yellow clear liquid
Boiling point: 300 ˇăC min

Specific gravity (g/cm 3 ), @ 20 ˇăC : 1.29 ~ 1.31

Solubility (g/ 100g solvent), @20 ˇăC

Water: Insoluble
Methanol: Complete

Toluene: Complete
MEK: Complete



Appearance: Colorless, slight yellow clear liquid
Phosphorus content : 10 ~ 12% min
Viscosity (cps), @ 20 ˇăC : 600 ~ 800

Acid value (mg KOH/g): 0.05 max
Color (Pt-Co), melton: 80 max
Moisture: 0.15% max


Plamtar-RDP is used as Flame retardant for HIPS, PA, PC, PA/ABS, PPO/ABS, PBT, PET and soft PU foam. Low volatility, high heat resistance, suitable for engineering plastics.



250kg/galvanized iron drum

Brominated Flame retardants
Plamtar-TBBA | Plamtar-BDDP | Plamtar-TBSBPE
Plamtar-DBDPE | Plamtar-BTBPOE | Plamtar-BTBPIE
Plamtar-HBCD | Plamtar-TTBPC | Plamtar-TBC

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