DG Flugzeugbau LS4 - 10 Materials for repair; Resinsystems for repairs; Fibre Glass Fabric:; Fibre Glass Rovings:

Maintenance Manual LS4
Issued: May 2011
Copyright DG Flugzeugbau GmbH - any copy or publishing prohibited
Manual valid with the up-to-date cover page only
10-1
10 Materials for repair
Resinsystems for repairs
Resin Momentive EPIKOTE
TM
Resin MGS LR 285 with
Hardener EPIKURE
TM
Curing Agent MGS LH 286
mixing ratio 100:40 +2 by weight
or
Resin Momentive EPIKOTE
TM
Resin MGS LR 385 with
Hardener EPIKURE
TM
Curing Agent MGS LH 386
mixing ratio 100:35 +2 by weight
Repaired regions must be postcured for 20 hours at a min. of 54°C (129°F)
before the next take-off.
Fibre Glass Fabric:
Alkalifree E-glass with finish I-550 or FK 144 Manufacturer: Interglas
Interglas No.
Kind of weave
Mass (g/m²)
Usage
92110
2/2 twill
163
Wing, stabilizer, all
control surfaces
92125
2/2 twill
280
Fin, local reinforcing
92145
Unidir. Plain
216
Wing, stabiliser, fuselage,
fin
92146
Unidir. Plain
440
Fuselage
Fibre Glass Rovings:
EC 14-2400-P 185 with Silan finish
Carbon Fibre Fabric (only LS4-b): Manufacturer Sigri
Interglas No.
Kind of weave
Mass (g/m²)
Usage
KDU 1006
Linen
368
Fuselage, canopy cut out
MDL-9019
Linen
246
Fuselage, canopy cut out
KDU 1007
Linen
205
Fuselage, canopy cut out
Polyester Fabric: Manufacturer: Lückenhaus
No.
Kind of weave
mass(g/m²)
Usage
34048
or 30781
Linen
206
Fuselage
Note: One layer of Polyester fabric should be replaced during repair with 2 layers
of 92125.