Provisional datasheet Fire Retardant Glass Structural SPRINT® ■ Award winning SPRINT matrix ■ BS476 parts 6 & 7 - best possible "Class 0" Rating ■ Suitable for rail, marine and civil engineering structures ■ Suitable for Lloyds and MCA Compliant Structures ■ Suitable for monolithic and sandwich structures ■ Excellent laminate quality, from vacuum-only processing ■ Fire retardant : meets FAR25.853 12 second & 60 second vertical burn ST70FR is part of the range of SPRINT® products. This unique product range provides technically and commercially competitive engineering materials, ideal for use either solely, or in conjunction with other products from Gurit. ST70FR is a fire retardant hot melt, Diuron free epoxy SPRINT®. This is ideally suited to the manufacture of thick sections requiring fire protection. It can be cured at temperatures as low as 70°C, but can also be used for the rapid manufacture of components through its 25-minute cure at 120°C. All of this can be achieved together with an out- ST70FR is designed for vacuum bag processing and offers excellent mechanical performance on glass fibre reinforcements. Currently ST70FR is manufactured into a Single Sided SPRINT® structure primarily with fibreglass reinforcements such as woven WRE581T WRE850T fabrics and multiaxial XE905 and QE1174 stitched fabrics. Other styles will be available to order.

Typical Cure Schedules ST70 FR SPRINT® materials can be used with both SPRINT® and prepreg products. It is supplied with a paper backer and should be applied with resin film against the mould. This facilitates placement and improves the fire resistance of the moulded The moulding surface must first be treated with a release agent. The required number of plies of SPRINT® are then placed on the tool and a thermocouple inserted into the layup outside the net trim line. Dry glass tows are inserted between the plies of SPRINT® to provide air evacuation paths out of the laminate. The ends of the tows...

Matrix Properties Cured Properties SPRINT® Properties

* Resin content includes fire retardant filler loading. Fire Performance

Storage Conditions & Outlife The following points must be considered: Skin contact must be avoided by wearing gloves. Gurit recommends the use of disposable nitrile gloves for most applications. The use of barrier creams is not recommended, but to preserve skin condition a moisturising cream should be used after washing. If working in an enclosed area, local extraction and ventilation should be used. Overalls or other protective clothing should be worn when laminating or sanding. Contaminated work clothes should be thoroughly cleaned before re-use. Eye-protection should be worn. If contamination...

Transport & Storage All SPRINT® materials should be stored in a freezer when not in use to maximise their useable life, since the low temperature reduces the reaction of resin and catalyst to virtually zero. However, even at -18°C, the temperature of most freezers, some reaction will still occur. In most cases after some years, the material will become unworkable. Notice All advice, instruction or recommendation is given in good faith but Gurit AG (the company) only warrants that advice in writing is given with reasonable skill and care. No further duty or responsibility is accepted by the Company....