Application field Sealants

THIOPLAST of the G type are typically used as basic polymer for sealants, but may also be used for other applications. Typical applications are:

  • manufacturing of insulating glass
  • construction
  • machine, marine and aircraft industry
  • coatings (e.g. concrete coatings)
  • molding compounds
  • modification of epoxies and rubbers
  • leather impregnation
  • grinding wheel binder
  • printing blankets

THIOPLAST™ G Types

Akzo Nobel currently manufactures nine types of THIOPLAST G, differing in molecular weight (chain length) and degree of branching. This product range will meet requirements for most applications, but specific, tailor-made polymers can be produced on special request.

Compounding

Thioplasts are base polymers for elastic, chemical and weather resistant sealants. Using various fillers, plasticisers and special modifying additives it is possible to adjust the physical properties of Thioplast polymers to meet specific application requirements and to reduce material cost.

The choice of the Thioplast type depends on the desired processing and application properties of the compound. Higher branched types provide high-elastic hard products after curing whereas lower branched types lead to weak-elastic products that have excellent resistance to chemicals and weathering.

Low viscosity types enable the formulation of pourable highly reactive compounds. High viscosity Thioplast types are mainly used for gun grade compounds.

THIOPLAST™ G types
G10 G112 G131 G1 G12 G21 G22 G44 G4
Insulating glass   +   +   ++      
Building ++ ++ + +
Industrial applications ++ ++   +   +      
Specialities ++ ++ + ++
Concrete coating               ++ ++
Epoxy modifiers ++ ++
                   

Processing

Thioplast compounds are commonly formulated as one or two component systems. The A part contains the Thioplast polymer, the B part the curing agent. An one component system consists of a complete package containing all ingredients. They are mixed under low humidity conditions prior to packaging in air tight, moisture resistant containers and will cure when exposed to environmental moisture.

Preparing the compounds requires the use of planetary mixers or high speed dispersers. A triple-roll mill should be additionally used to produce a maximum of uniformity of the curing paste and reduction of occluded air.

For technical information please use the link to Our Products / THIOPLAST™ G.

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Last update: April 27, 2007
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