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PHG840 - Prepreg materials for rail interior parts (v1))

PHG840 - Prepreg materials for rail interior parts (v1))

Product catalog summary

Product Overview
PH 840-600-40 is a fabric reinforced thermosetting preimpregnated material designed for railway parts such as fairings, windows, ceiling, and floor panels. It features a woven E-glass fabric with a weight of 600 g/m², preimpregnated with 40% phenolic resin PH840. The material is known for its long shelf life, excellent fire, smoke, and toxicity (FST) behavior, mechanical properties, and good surface finish. It can be processed without an autoclave and has a short curing time of 10 minutes at 160°C.

Specifications
The PH 840-600-40 is a halogen-free modified phenolic system suitable for industrial and rail applications. It offers high specific mechanical properties and excellent FST behavior. The resin matrix can be cured between 120°C and 160°C, and the material can withstand temperatures from -55°C to +80°C. It meets several flame-retardant rail specifications, including BS 476-6 and 7 Class 1, BS 6853 R. 025, NF-F 16-101/102 (M1, F1), UNE 23-721 (M1), and DIN 5510 S4, SR2, ST2.

Prepreg Properties
The prepreg has a weight of 1000 ± 50 g/m², with a resin content of 40 ± 3%. It exhibits a resin flow of over 10% and a volatile content of less than 6%. The service temperature range is from -55°C to +80°C. The material is delivered in rolls with a length of 40 meters and a width of 1.27 meters, with a storage life of 30 days at room temperature or 6 months at -18°C.

Curing Conditions
The curing process can be performed using vacuum-bag/oven, press, or autoclave methods. The recommended curing cycle involves temperatures of 120°/130°/140°/160°C with corresponding cure times of 90/60/30/10 minutes. The specific pressure should be between 0.07 and 0.4 N/mm², with heat-up and cool-down rates of 2 to 5 K/min.

Mechanical Properties
Typical mechanical properties include flexural strength and modulus, interlaminar tensile shear strength, compressive strength and modulus, climbing drum peel force, and ultimate bending load. The material also demonstrates excellent flammability and low toxicity levels, with specific optical smoke density and heat release rates within acceptable limits.

Notice
The data provided are based on representative sample specimens, and actual results may vary depending on fabrication and testing conditions. Gurit cannot guarantee that the listed data will be achieved with other processes and equipment.

Catalog excerpts

PHG840 - Prepreg materials for rail interior parts (v1))-1

PH840-600-40 n Fabric reinforced thermosetting preimpregnated materials for railway parts (e.g. fairings, window, -ceiling- and floor panels). n Woven E-glass fabric, 600 g/m2, Satin HD Special, preimpregnated with 40% phenolic resin PH840 n Long shelf and shop life n Excellent FST behaviour n Excellent mechanical behaviour n Good surface finish n Autoclave-free processes possible n Short curing time 10 min @ 160°C PDS PH 840-600-40-1-0907 1

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PHG840 - Prepreg materials for rail interior parts (v1))-2

PH 840-600-40 is a halogenfree modified phenolic system, designed for laminate with bright colour and good surface quality. This prepreg material has been developed for industria and rail applications, with high specific mechanical properties and excellent FST (low heat-release and smoke-density) The resin matrix PH840 can be cured at a temperature range between 120°Cand 160°C. Monolithic and sandwich structures can be easily manufactured with this prepreg.The curing can be performed by press, vacuum and autoclave moulding with a pressure of at least 0.07 N/mm2. Such composite structures can...

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PHG840 - Prepreg materials for rail interior parts (v1))-3

Curing Conditions Mechanical Properties (Typical Values) Burning Behavior

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PHG840 - Prepreg materials for rail interior parts (v1))-4

The data have been obtained from representative sample specimens. Because the properties depend strongly on the fabrication and testing conditions, Gurit cannot guarantee that the data listed above will be achieved with other processes and equipment. Gurit (Kassel) GmbH

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