Hardener GL 2 (210 min)

Hardener for Epoxy Resin L

The well-proven R&G Epoxy Resin L in combination with Hardener GL 2 offers an approval by the Germanische Lloyd for the construction of boats and rotor blades for wind turbines.

Mixing ratio:
100 : 30 parts by weight resin : hardener
100 : 35 parts by volume resin : hardener

Processing time: approx. 84 minutes*

* Temperature increase from 23 °C to 40 °C with 100 ml: approx. 109 minutes pot life
(measured with Gelnorm®-Geltimer: 100 g at 23 °C = approx. 210 minutes pot life)

Properties:

• Extremely low-viscous (Mixing viscosity 250 mPas at 25 °C)
• Highly transparent (Colour index < 1 Gardner)
• Fully cures at 15 °C
• Glass transition temperature (Tg) > 85 °C (post-curing at 70 °C / 15 h)
• Ambient curing does not result in brittleness (at 20 °C)
• High static and dynamic strength

This newly delevoped resin system is ideal for wetting-out glass, aramid and carbon fibres. It exhibits a very good price/performance ratio and is suitable for the following processing procedures:

• Resin infusion (RI)
• RTM (resin transfer moulding)
• Press moulding
• Vacuum moulding
• Filament winding
• Hand laminating

The resin component itself is absolutely free of crystallization due to its Bisphenol A/F base! The resin system is ambient curing and develops no distinctive brittleness even at curing temperatures below 20 °C. We however recommend, to improve the physical and chemical properties, to perform a post-curing at least at 40 °C over 15 h.

Mixing table with processing times of Epoxy Resin L + mixed Hardeners GL 1/2.
The mixing ratio of 100: 30 resin to hardener remains unchanged.

approx. potlife in minutes (100 g at 23 °C with epoxy L)	Quantity of GL 1 in %	Quantity of GL 2 in %
210	0	100
150	10	90
125	20	80
100	30	70
85	40	60
60	50	50
50	60	40
43	70	30
38	80	20
34	90	10
30	100	0

Please order Epoxy Resin L order no. 100135-X separately.