Rostabil TDP

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PCC Rokita SA / Phosphorus Chemistry Business Unit
Chemical name
triisodecyl phosphite
Solvent-free production Solvent-free production High efficiency High efficiency Low treat rate Low treat rate
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Catalog Inventory status General terms of sale
ISO 14001 ISO 14001 ISO 50001 ISO 50001 ISO 9001 ISO 9001 ISO 45001 ISO 45001

Rostabil TDP is a trialkyl phosphite used as a specialist additive for plastics. Occurring in the form of a homogeneous and clear liquid, plays the role of a thermal and process stabilizer successfully used in transparent products.

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Properties and applications

Product application advantages:

  • eliminates the yellowing effect of plastics during processing,
  • enhances the colour stability of polymeric materials containing pigments,
  • ensures transparency in non-pigmented materials,
  • prevents degradation processes during thermal processes,
  • works synergistically together with amine and phenolic primary stabilizers,
  • one of the components of mixed metals in PVC processing,
  • has non-staining properties,
  •  lack of negative impact on the mechanical properties of the material.


  • construction (roof coverings and membranes, window frames, PVC pipes, technical foils),
  • textiles and textiles (coated fabrics, artificial leather, projection screens),
  • transport (tarpaulins, tarp, conveyor belts),
  • motorization (car coverings, elements of equipment),
  • electronics (cables and wires),
  •  emulsion polymerization.

Markets and applications
Building & Construction / Construction adhesives, Other applications
CASE / Adhesives, Coatings, Elastomers, Sealants
Furniture / Mattresses & cushions, Upholstered furniture
Paints & Coatings
Plastics / Emulsion polymerization, Polymer additives
Sports and recreation / Sport surfaces
Textile industry
Transportation / Other applications

Heat stabilizers
Thermal & processing stabilizers


Specialty Products / Specialty additives

Alternative names
triisodecyl phosphite, TDP, Triisodecyl phosphite, phosphorous acid, triisodecyl ester, phosphite, phosphite ester, organophosphite, organophosphorus compound, alkyl phosphite, trialkyl phosphite

Manufacturer: PCC Rokita SA

PCC Rokita SA is one of the largest chemical companies in Poland as well as Central and Eastern Europe. Its activity includes the production of chloroalkali, polyether polyols, polyalkylene glycols and phosphorus derivatives.

PCC Group
The product was developed as part of a research and development project co-funded by the European Union, from the European Regional Development Fund.

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