Reactive Resins and Systems

POLYVERTEC® COMPOSITE SYSTEMS
STRUKTOL® POLYVERTEC® COMPOSITE SYSTEMS for composite applications and potting compounds

Fiber reinforced components (composites) based on reactive resin systems are used in many application areas:

  • Transportation (rail, shipping): railcar construction, ship superstructures
  • Wind energy: rotor blades
  • Sports and leisure industry: golf clubs, bicycles, fishing rods, etc.
  • Gliders: fuselage, wings and tail unit
  • Construction industry: stiffening elements, lamellas and re-bars ("construction steel mats")
  • Potting compounds

The properties of POLYVERTEC® COMPOSITE SYSTEMS can be adapted within wide limits to meet the different requirements of processing procedures as well as the properties of the finished fiber composite component. For the production of high-quality infusion and RTM molds (tooling), POLYVERTEC® Q-TOOL HT can be easily processed as a quartz-based polymer concrete in a casting process.

POLYVERTEC® COMPOSITE SYSTEMS can be combined in many ways with other STRUKTOL® products, such as POLYPHLOX® Flame Retardant modifiers or the STRUKTOL® POLYDIS® and POLYCAVIT® Tougheners product range.

The epoxy resin systems are already compatible resin/hardener combinations that meet specific requirements. They only have to be mixed by the user in the recommended mixing ratio. Depending on the selection, the final thermal and mechanical properties can be influenced.

Typical applications are adhesive formulations, coating systems, casting resins and epoxy resin systems in the fiber composite industry.

Struktol® Polyvertec® 3421 / H80

UV-stable high temperature resin system
processing: resin injection, pultrusion and winding processes
processing time (23°C) approx. 20 h

  • very low viscosity
  • glass transition temperature Tg up to 200°C
  • processing time (60°C) approx. 270 min
  • processing time (80°C) approx. 75 min
  • processing time (120°C) approx. 6 min
  • Mixing ratio: 100:100 parts by weight
  • Dyn. mixing viscosity (25 °C): 280 mPas
  • Appearance: slightly brownish
  • Curing: min. 1 h @ 180 °C
  • Post-curing: Temperatures up to 200°C
Struktol® Polyvertec® 3422 / H81

Resin system for extreme high temperature applications
processing: resin injection, pultrusion and winding processes
processing time (23°C) approx. 2-5 days

  • medium viscosity
    pot life @ 50°C approx. 5 h
    glass transition temperature Tg > 250°C achievable
    very good mechan. properties
  • Mixing ratio: 100:35 parts by weight
    Dyn. mixing viscosity (25 °C): 4200 mPas
    Dyn. mixing viscosity (40 °C): 800 mPas
    Curing: min. 1 h @ 180 °C
    Post-curing: Temperatures up to 200°C
Struktol® Polyvertec® 3424 / H8

High viscosity epoxy resin system for application in SMC/BMC molding compounds

  • suitable for the formulation of SMC compounds based on a latent, 2-step hardener, short reaction time of 2-10 min @ 120-170 °C, resin flow adjusted
  • good mechan. properties"

Detailed information upon request

Struktol® Polyvertec® 3451 / H6

Low viscosity epoxy resin system

  • Application: resin infusion or injection as well as for pultrusion and winding processes
  • Low viscosity
  • long pot life (25°C): approx. 480 min glass transition temperature Tg to 160°C
  • very good mechan. properties
  • Mixing ratio: 100:34
  • Dyn. mixing viscosity (25 °C): 530 mPas
  • Appearance: colorless to slightly yellowish
  • Curing: min. 24 h @ RT, 16 h @ 100 °C
  • Post-curing: Temperatures up to 160°C
Struktol® Polyvertec® 3452 / H1, H2B, H3, H4

Multipurpose resin system kit for laminating and infusion component assembly, various hardeners for selection
processing times adaptable within wide limits

  • medium viscosity
  • pot life hardener H1/H2B/H4 (25°C) approx. 160-300 min
  • pot life hardener H3 (25°C) approx. 11 h
  • glass transition temperature Tg up to 120°C
  • good mechan. properties
  • Mixing ratio depending on hardener: 100:25 to 34
  • Dyn. mixing viscosity (25 °C): approx. 250 - 400 mPas
  • Appearance: slightly yellowish
  • Curing: min. 24 h @ RT, 12 h @ 100 °C
  • Post-curing: Temperatures up to 120°C
Struktol® Polyvertec® 3455 / H1-H7

Low viscosity epoxy resin system with different hardeners for the adjustment of the
processing time (adaptable within wide limits)
application: resin infusion/injection or pultrusion and winding processes

  • very low viscosity
  • pot life of hardener e.g. H1/H2B/H4 (25°C) approx. 160-300 min
  • pot life of hardener H3 (25°C) approx. 11 h
  • glass transition temperature Tg up to 140°C
  • very good mechan. properties
  • other resin-hardener combinations are possible
  • Mixing ratio depending on hardener: 100:25 to 34
  • Dyn. mixing viscosity (25 °C): approx. 120 - 400 mPas
  • Appearance: slightly yellowish
  • Cure: min. 24 h @ RT
  • Post-curing: Temperatures up to 140°C

The epoxy resins are the A-component in a resin-hardener system. In addition to the standard epoxy resins based on bisphenol-F and bisphenol-A, special, multifunctional resins as well as cycloaliphatic EP resins are used. In combination with the appropriate hardener/accelerator, glass transition temperatures of up to 270°C and high mechanical properties can be achieved.

Struktol® Polyvertec® 3421

Very low viscous, cycloaliphatic epoxy resin
application: resin infusion/injection or pultrusion and winding processes
very high Tg achievable

  • extremely low mixing viscosity in combination with Polyvertec® Hardener H80
  • very good mechanical properties
  • Tg's reachable up to 200°C (Hardener H80)
  • good UV stability
  • EEW: 147 g/eq.
  • Dyn. viscosity (25 °C): 480 mPas
  • Appearance: transparent liquid
Struktol® Polyvertec® 3422

Viscous, multifunctional epoxy resin
application: resin infusion/injection or pultrusion and winding processes
ultra-high Tg's achievable (>250°C)

  • medium mixing viscosity with hardener Polyvertec®H81
  • very high level of mechanical properties
  • Tg's reachable up to 270°C
  • EEW: 122 g/eq.
  • Dyn. viscosity (25 °C): 7500 mPas
  • Appearance: amber-coloured liquid
Struktol® Polyvertec® 3424

High viscosity epoxy resin blend with tough modification
Application: e.g. SMC/BMC molding compounds

  • suitable for the formulation of SMC moulding compounds based on liquid or powdered hardeners
  • short reaction time of 2-10 min
  • flow controlled
  • good mechan. properties

Detailed information upon request

Struktol® Polyvertec® 3451

Low viscous epoxy resin
application: Resin infusion or injection as well as for pultrusion and winding processes

  • low mixing viscosity in combination with Polyvertec® hardeners
  • good mechanical properties
  • Tg's up to 160°C depending on hardener
  • Suitable hardeners: Polyvertec H1, H2B, H3, H4, H6, H7
  • EEW: 175 g/eq.
  • Dyn. viscosity (25 °C): 850 mPas
  • Appearance: cloudy liquid
Struktol® Polyvertec® 3452

Robust, medium viscous epoxy resin
Application: Resin infusion and hand laminating processes

  • medium mixing viscosity with Polyvertec® hardeners
  • balanced mechanical properties
  • Tg's up to 120°C attainable depending on hardener
  • Suitable hardeners: Polyvertec H1, H2B, H3, H4, H5B
  • EEW: 175 g/eq.
  • Dyn. viscosity (25 °C): 2100 mPas
  • Appearance: transparent liquid
Struktol® Polyvertec® 3453

Robust, medium viscosity epoxy resin
Application: impregnation and hand lay-up processes

  • medium mixing viscosity with Polyvertec® hardeners
  • balanced mechanical properties
  • Tg's up to 120°C attainable depending on hardener
  • Suitable hardeners: Polyvertec H2B, H4, H5B, H7, H8
  • EEW: 180 g/eq.
  • Dyn. viscosity (25 °C): 4300 mPas
  • Appearance: transparent liquid
Struktol® Polyvertec® 3455

Very low viscous epoxy resin
application: resin infusion/injection or pultrusion and winding processes

  • very low mixing viscosity in combination with Polyvertec® hardeners
  • good mechanical properties
  • Tg's up to 140°C depending on hardener
  • Suitable hardeners: Polyvertec H1, H2B, H3, H4, H6, H7
  • EEW: 163 g/eq.
  • Dyn. viscosity (25 °C): 670 mPas
  • Appearance: transparent liquid

The hardeners are the B-component of a resin system that cures the matrix. For this purpose, substance classes such as amines or anhydrides etc. can be used, either alone or in mixtures. In this way it is possible to react and adapt to the conditions from room temperature to hot curing.

Struktol® Polyvertec® H1

Liquid, aliphatic amine

  • Application: Infusion/injection or hand laminates (CFK, GFK,..)
  • suitable for Polyvertec® resins 3451, 3452 & 3455
  • Processing time (23°C) approx. 180 min
  • Infusion, hand laminating
  • RT or warm curing
  • Pot life ca. 180 min, can be accelerated at low processing temperatures (<18°C) with Polyvertec® H5B
  • Dosage: depending on epoxy resin approx. 15-35 parts by weight
  • HAEW: 45 g/eq.
  • Dyn. viscosity (25 °C): 30 mPas
  • Appearance: low viscosity, clear liquid
  • Curing time: 24h @ RT
  • Post-curing: Temperatures up to 100°C
Struktol® Polyvertec® H2B

Liquid, aliphatic amine

  • Application: Infusion/injection or hand laminates (CFK, GFK,..)
  • suitable for Polyvertec® resins 3451, 3452 & 3455
  • Processing time (23°C) approx. 220 min
  • Can be accelerated at low processing temperatures (<18°C) with Polyvertec® H5B
  • Dosage: depending on epoxy resin approx. 20-35 parts by weight
  • HAEW: 54 g/eq.
  • Dyn. viscosity (25 °C): 30 mPas
  • Appearance: clear liquid
  • Curing time: 24h @ RT
  • Post-curing: Temperatures up to 100°C
Struktol® Polyvertec® H2B

Liquid, aliphatic amine

  • Application: Laminates by injection moulding (CFK, GFK,..)
  • Viscosity adapted for 2K injection and resin mixing systems
  • suitable for Polyvertec® resins 3451, 3452 & 3455
  • Processing time (23°C) approx. 180 min
  • Processing time (23°C) approx. 220 - 360 min
  • Viscosity moderately increased especially for pumps and volume meters of 2K injection resin systems
  • Dosage: depending on epoxy resin approx. 15-30 parts by weight
  • HAEW: 63 g/eq.
  • Dyn. viscosity (25 °C): 115 mPas
  • Appearance: clear, slightly yellowish liquid
  • Curing time: 24h @ RT
  • Post-curing: Temperatures up to 100°C
Struktol® Polyvertec® H3

Liquid, aliphatic amine

  • Application: Infusion/injection or hand laminates (CFK, GFK,..)
  • suitable for Polyvertec® resins 3451, 3452 & 3455
  • Processing time (23°C) approx. 20 h
  • Can be accelerated at low processing temperatures (<18°C) with Polyvertec® H5B
  • Dosage: depending on epoxy resin approx. 15-30 parts by weight
  • Sixty grams an eighth.
  • Dyn. viscosity (25 °C): 11 mPas
  • Appearance: slightly yellowish liquid
  • Curing time: 24h @ RT
  • Post-curing: Temperatures up to 100°C
Struktol® Polyvertec® H4

Liquid, aliphatic amine

  • Application: Infusion/injection or hand laminates (CFK, GFK,..)
  • suitable for Polyvertec® resins 3451, 3452 & 3455
  • Processing time (23°C) approx. 70 min
  • Can be accelerated at low processing temperatures (<18°C) with Polyvertec® H5B
  • Dosage: depending on epoxy resin approx. 20-30 parts by weight
  • HAEW: 43 g/eq.
  • Dyn. viscosity (25 °C): 12 mPas
  • Appearance: transparent liquid
  • Curing: min. 24 h @ RT or at higher temperatures
  • Post-curing: Temperatures up to 160°C
Struktol® Polyvertec® H5B

Liquid, aliphatic amine
highly accelerated for fast curing

  • Application: fast curing bonding with 2K epoxy resin adhesive or adjustment of pot life
  • Processing time (23°C) approx. 5-10 min
  • excellently suitable in combination with Polyvertec® H1, H2, H3, H4 to adjust the pot life at temperatures below 18°C
  • suitable for all Polyvertec® hardeners except Polyvertec® H80
  • Dosage: depending on epoxy resin approx. 25-40 parts by weight
  • HAEW: 53 g/eq.
  • Dyn. viscosity (25 °C): 130 mPas
  • Appearance: orange liquid
  • Curing time: 24h @ RT
  • Post-curing: Temperatures up to 100°C
Struktol® Polyvertec® H6

Liquid cycloaliphatic amine

  • Application: Pultrusion and winding processes, injection/infusion processes
  • long processing time (23°C) of approx. 480 min
  • very long pot life
  • very good mechanical properties
  • Dosage: depending on epoxy resin approx. 25-40 parts by weight
  • HAEW: 60 g/eq.
  • Dyn. viscosity (25 °C): 100 mPas
  • Appearance: transparent liquid
  • Cure: 24h @ RT or @ 150°C
  • Post-curing: Temperatures up to 140°C
Struktol® Polyvertec® H7

Liquid, aliphatic amine

  • Application: Pultrusion and winding processes, injection/infusion processes
  • Processing time (23°C) approx. 380 min
  • long pot life
  • very good mechanical properties
  • Dosage: depending on epoxy resin approx. 20-35 parts by weight
  • HAEW 60 g/eq..
  • Dyn. viscosity (25 °C): 40 mPas
  • Appearance: transparent liquid
  • Cure: 24h @ RT or @ 150°C
  • Post-curing: Temperatures up to 140°C
Struktol® Polyvertec® H80

Liquid anhydide

  • Application: Pultrusion and winding processes, injection/infusion processes
  • Processing time (23°C) approx. 10-20 h
  • long pot life, very good mechanical properties
  • in combination with epoxy resin Polyvertec® 3421 very high Tg achievable (200°C)
  • good UV stability
  • Dosage: for cycloaliphate. Epoxy resin 100 parts by weight hardener to 100 parts by weight epoxy resin
  • Dyn. viscosity (25 °C): 100 mPas
  • Appearance: brownish liquid
  • Curing: min. 1 h @ 180 °C
  • Post-curing: Temperatures up to 200°C
Struktol® Polyvertec® H81

Liquid aromatic amine

  • Application: Pultrusion and winding processes, injection/infusion processes
  • Processing time (23°C) approx. 5-10 h
  • very long pot life at RT-50 °C
  • very good mechanical properties
  • depending on epoxy resin very high Tg achievable (>200°C)
  • Dosage: depending on epoxy resin approx. 15-30 parts by weight
  • Forty-three grams an eighth.
  • Dyn. viscosity (25 °C): 170 mPas
  • Appearance: transparent liquid
  • Curing: 80 - 160 °C
  • Post-curing: Temperatures up to 200 °C

Tooling casting compounds are 2-component epoxy resin systems which are mixed with a specially adapted mineral filler such as quartz. This allows (prototype) moulds to be created for the production of fibre composite components, which can be adapted to different requirements such as pressure and temperature stability, depending on the combination of resin system/mineral filler. The applications range from the replacement of PU block materials to moulds milled from aluminium. Correspondingly, molds can be produced that have a CTE of aluminum with a high Tg >200°C and very high compressive strength at high temperatures. These molds can also be used for RTM processes.

Struktol® Polyvertec® Q-TOOL HT

Tooling kit (sand moulding compound) for production of temperature-stable composite lamination forms or pressure-resistant RTM tools

  • very high compressive strength 70-100 N/mm² @ 180°C
  • low coefficient of expansion
  • EPS foams or similar materials suitable for moulding
  • easy to process
  • Mixing ratio resin system: 100:100 parts by weight
  • Mixing ratio quartz sand / resin system: 82:18 parts by weight
  • appearance: white/brownish
  • Curing @ RT approx. 5 days
  • Curing @ 60°C approx. 3-5 h
  • Post-curing: Temperatures up to 220°C (free stand post cure)