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Epoksidne smole

5M develops and produces systems for laminate production, particularly on the basis of epoxy resins. Our production range includes systems with various properties and viscosity, from extremely liquid to highly viscous and thixotropic.

The optimal combination of epoxy resins and hardeners can be chosen for each application and different production conditions, such as mixture, pot life, curing method, technology and properties of final laminate.

 

Epoxy Resins for aircraft industry

In our product range are resins developed specialy for production of laminated parts for aircrafts, mainly ultralights, gliders or helicopters.

List of references (mainly producers of ULL)







 

Resin LETOXIT Hardener LETOXIT Pot life* Viscosity (mPa.s) Room temp. curing Tg Max. (°C) Characteristics Techn. sheet
PR 227 EM 305 50 - 60 200 - 500 yes 104 Economical in use, all-purpose application
EM 306 70 - 90 yes 112
EM307 100 - 120 no 119
PR 220 EM 305 50 - 60 300 - 700 yes 113 certificated for aviation , all-purpose application
EM 306 120 - 150 yes 122
EM 307 200 - 250 no 124
PR 220 EM 315 50 - 60 300 - 700 yes 115 certificated for aviation , all-purpose application, nonylphenol free hardeners
EM 316 120 - 150 yes 123
EM 317 200 - 250 no 124
PR 217 EM 315 50 - 60 500 - 900 yes 113 certificated for aviation, 20% improved  impact strength, nonylpehnol free hardeners
EM 316 90 - 100 yes 131
EM 317 230 - 250 no 135
PR 223 EM 315 50 - 60 500 -800 yes 85 self extingushing (FAR 23), nonylpehnol free
EM 316 60 - 70 yes 90
EM 317 80 -100 no 100
 


 * In minutes, at 25 °C, 200 g



 

Epoxy Resins for other applications

Our company develops and produces many types of resins and hardeners for applications, where is needed fiberglass products with excellent mechanical properties. Exactly this characteristic meet the resins for the manufacture of models, boats, canoes, pressure bottles, sufrboards, winded tubes, production mould and other.






   

Resin LETOXIT Hardener LETOXIT pot life*** Viscosity (mPa.s) Room temp. curing Tg Max. (°C) Characteristics Techn. sheet
PR 102 EM 100 160 - 180 200 - 500 no 125 model hobby, low viscosity
EM 400 50 - 60 200 - 400 yes 110
EM 420 40 - 50 250 - 550 yes 100
PR 108 EM 309 12 h 1500 - 1800 no 105 winding, black
PR 110 EM 305 50 - 60 300 - 700 yes 108 economical in use, mould production, extra water resistance
EM 306 70 - 90 300 - 700 yes 117
EM 307 100 - 120 300 - 700 no 127
EM 420 40 - 50 300 - 700 yes 109
PR 129 EM 100 180 1200 - 1500 no 103 UV resistance
EM 420 40 - 50 1000 - 1200 yes 90
PR 164 EM 285 8 h 250 - 400 no 97 winding/braiding, summer
EM 286 8 h 250 - 400 no 91 winding/braiding, winter
PR 131* EM 247 EM 300 10 h 1000 - 1200 no 134 casting resin - inside
PR 187* EM 295 EM 300 12 h 300 - 400 no 103 casting rein - outside
PR 246 -** -** -** -** -** salt water resistance
  
PR 123 EM 100 150 - 180 900 - 1100 no 140 shaping moulds
 






* necessary to mix with silica sand SUK 20 

** contact us for detailed information  

*** in minutes, at 25 °C, 200 g

 

 

Epoxy foaming systems

5M also produces several foaming systems. These systems first foam after application, thus expanding their volume and filling free space; after that they cure. Therefore they are suitable for production of lightweight elements or to fill cavities during lamination.

 

Resin LETOXIT Pot life* Foam density (g/cm3) foam flexural strength (N/mm2) Temperature resistance (°C) Curing cycle
 State Tech. sheet
SV 20 30 - 40 0,20 2,5 - 3,5 80 - 90 24h at 20°C (90%)
48 h at 20°C (95%)
5 days at 20°C (100%)		 liquid  
0,30 5 - 7
SV 51 10 - 15 0,2 2,0 - 2,5 80 - 90 30 min. at 60°C liquid
SV 60 50 - 60 0,2 3 - 3,5 80 - 90 24h at 20°C + 1h at 60°C 2h at 60°C liquid  
0,3 6 - 6,5
VFL 120 - - - 100 60 min. at 120°C foil
 






* In minutes, at 20 °C, 100 g