Hardeners and Catalysts

Hardeners and Catalysts

Hardeners and Catalysts

Hardeners are chemicals which are activated by accelerators or heat and promote gelling and curing of a polyester resin vinyl ester resin matrix. They start crosslinking reactions between resin and reactive monomers such as styrene. Methyl ethyl ketone peroxide (Mek-P) is active at room temperature for curing of polyesters and vinyl esters. Tert-Butyl peroxybenzoate (TBPO) is the preferred choice for heat curing productions such as pultrusion and hot press. Benzoyl Peroxide (BPO) is active over 80°C and also is used with amine accelerators at ambient temperature for hardening systems. Acetyl Acetone Peroxide (AAP), with its fast demolding time, is preferred choice for RTM. Phthalate free grades are recommended where needed. 

Hardeners are chemicals which are activated by accelerators or heat and promote gelling and curing of a polyester resin vinyl ester resin matrix.

Hardeners and Catalysts

Hardeners are chemicals which are activated by accelerators or heat and promote gelling and curing of a polyester resin vinyl ester resin matrix. They start crosslinking reactions between resin and reactive monomers such as styrene. Methyl ethyl ketone peroxide (Mek-P) is active at room temperature for curing of polyesters and vinyl esters. Tert-Butyl peroxybenzoate (TBPO) is the preferred choice for heat curing productions such as pultrusion and hot press. Benzoyl Peroxide (BPO) is active over 80°C and also is used with amine accelerators at ambient temperature for hardening systems. Acetyl Acetone Peroxide (AAP), with its fast demolding time, is preferred choice for RTM. Phthalate free grades are recommended where needed. 

1
Commercial NameChemical Name / StructureRoom TemperatureMedium TemperatureHigh TemperatureVE
2
Active Oxygen %*SADT Value °CHand lay-up
Spray-up
RTMPolymer ConcereteGelcoatAmine Accelerated PuttyChemical Bolting
(Anchorage)
ButtonCentrifugal CastingFilament WindingContinuous LaminatePultrusionSMC-BMCEngineered StoneVinyl ester
3
Ketone Peroxides
4
Butanox M60Methyl ethyl ketone peroxide9,960
5
Luperox K10Methyl ethyl ketone peroxide9,960
6
Butanox M50Low Reactivity Methly ethyl ketone peroxide8,960
7
Butanox M50-AMethly ethyl ketone peroxide (phthalate free)8,860
8
Luperox K1-GMethly ethyl ketone peroxide (phthalate free)9,260
9
Trigonox 44-BAcetylacetone Peroxide4,160
10
Luperox K-3Acetylacetone Peroxide4,160
11
Butanox LPTLow Reactivity Methyl ethyl ketone peroxide8,560
12
Luperox Z11-GMethly ethyl ketone perox. + Acetyl Acetone perox.7,560
13
Benzoyl Peroxides
14
Peroxan BP Paste FDibenzoyl peroxide3,355
15
Peresters
16
Trigonox Ctert. Butylperbenzoate860
17
Trigonox 93tert. Butylperbenzoate6,555
18
19
Trigonox 29-C501,1-Di(tert-butylperoxy)-3,3,5-trimethylcyclohexane5,360
20
Trigonox 29-B501,1-Di(tert-butylperoxy)-3,3,5-trimethylcyclohexane5,360
21
Peroxan PK-295V1,1-Di(tert-butylperoxy)-3,3,5-trimethylcyclohexane5,360
22
Cumylperoxides
23
Trigonox 239Cumylhydroperoxide4,660

Packing Types

You can choose any package type suitable for your production system or you can get further information from our sales department regarding container options.

Modification Description

  • FR   Filled flame retardant
  • D*   Filled (*with filler content)
  • T Thixotropic (no sagging)
  • A Cobalt preaccelerated
  • ABP Amine preaccelerated
  • UV UV Curing
  • L   UV light stabilized
  •   I Lower viscosity
  •   V Higher viscosity
  •   LSE   LSE (low styrene emission)
  •   H* Gel time customized (at room temperature) * minutes
  • H40 Optimized for summer season. Gel time (at room temperature) 40 minutes.
  • H20 Optimized for winter season. Gel time (at room temperature) 20 minutes.
  •   COLOR   White or custom color options

Gelcoat Customizations
Polijel gelcoat table descriptions and modifications.

  • Spray Application (airless preferred)
  • Brush or Roller Application
  • Color Option: White colored
  • Color Option: Light colored (pastel)
  • Color Option: PRO colored

Production Quantity Depending on Process (parts/year)
Regardless of product dimension and complexity..

    Contact Us

    * By sending this form I agree to be contacted based on my message and that I may be contacted in the future in accordance with IAI’s privacy policy.