Epoxy Resin L + Hardener CL (60 min)

Epoxy Resin L + Hardener CL

The resin system Epoxy Resin L + Hardener CL yields superior impregnating and wetting properties towards carbon, glass, aramid and natural fibres. It is especially suitable for carbon coating of automotive parts.

• Low viscosity
• Highly transparent
• High degree of UV stability
• Tack-free curing even of thin layers
• Glass transition temperature (Tg) > 90 °C (post-curing at 70 °C / 15 h)
• High static and dynamic strength (equal to Epoxy Resin L 285 with Hardener 285)
• Free of nonylphenol and DETA

Processing time: 60 minutes (100 g / 20 °C)

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

The resin system is curing at temperatures over 20 °C but develops no distinctive brittleness even at curing temperatures below 20 °C (for at least 48 h). We however recommend, to improve the mechanical and physical properties, to perform a post-curing at least at 40 °C over 15 h.

It is suitable for the following processing procedures:

• Hand laminating
• Vacuum moulding
• Press moulding

Expertise for the resin system Epoxy resin L + Hardener CL: this system is not cytotoxic (cell damaging), important for applications in medical purposes!

Mechanical properties (Neat resin after curing at 1 h 23 °C + 5 h 70 °C + 5 h 80 °C)

Flexural test

Flexural strength (DIN EN ISO 178): 137 MPa
Surface strain at maximum stress: 6.8 %
Surface strain (no specimen failure): 7.0 %
Flexural modulus: 3.220 MPa

Tensile test

Tensile strength (DIN EN ISO 527): 82.8 MPa
Elongation at maximum strain: 4.9 %
Elongation at break: 4.7 %
Tensile modulus: 3.190 MPa

Compression test

Compressive strength (DIN EN ISO 604) at 6 % compression: 111 MPa

Shrinkage

Linear shrinkage (DIN EN 12617-1): 0.3 %

More info see eWiki.