ST 95

ST 95

ST 95

Product catalog summary
Introduction
The ST 95 Structural SPRINT™ is a patented moulding material featuring carbon or glass reinforcement layers around a precast resin film. It offers excellent mechanical properties, low void content, and is suitable for structural components requiring impact resistance and microcracking prevention. It is certified by Germanischer Lloyd and supports a flexible cure temperature range of 85-125ºC (185-257ºF).

Instructions for Use
1. Treat the moulding surface with a release agent and apply a surface film if needed.
2. Place the required SPRINT™ plies on the tool face, inserting dry glass tows for air evacuation.
3. Apply a peel ply and cover with a release film and breather material.
4. Install a vacuum bag and apply vacuum at ambient temperature before curing.
5. Cure according to specified schedules, maintaining vacuum until cooling.

Curing Schedule
The ST 95 has a flexible cure envelope, with a minimum cure of 12 hours at 85ºC and a rapid cure of 1 hour at 120ºC. The process involves applying vacuum, increasing temperature for resin infusion, and maintaining it for cross-linking.

Product Information
ST 95 is available in carbon and glass with various weights and resin contents. It is certified by Germanischer Lloyd and should be stored below 22ºC to prevent premature self-impregnation.

Compatible Materials
SPRINT™ can be used with Gurit surfacing and adhesive films, including SA 80 adhesive films.

Transport & Storage
Store SPRINT™ materials in a freezer to maximize shelf life. Allow materials to reach room temperature before unwrapping to avoid condensation.

Health and Safety
Refer to the product SDS for specific safety information.

Laminate Properties
Details on tensile and compressive strengths, modulus, and other properties for both carbon and glass laminates are provided, with testing standards specified.

Notice
All advice is given in good faith, but the company only warrants written advice. Customers should conduct their own testing to ensure suitability for their applications. Specifications and prices may change without notice.
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Catalog excerpts

ST 95-1

General Datasheet Good balance of mechanical properties Excellent laminate quality Extremely low void content Good tack Fast layup No debulk necessary between plies Variable cure temperature 85-125ºC (185-257ºF) Germanischer Lloyd Certified INTRODUCTION The patent-approved ST 95 Structural SPRINT™ is a moulding material that consists of two layers of carbon or glass reinforcement either side of a precast, precatalysed resin film. The material therefore has the appearance of dry reinforcement that has resin concealed at its centre. Carbon and Glass SPRINT™ are available in woven or unidirectional fabric skewed to ±45º angles in a range of weights and fabric formats with a light tack film on one side to aid mould placement. ST 95 is a toughened hot-melt, epoxy resin that offers an extremely good balance of mechanical properties. It has been formulated to maximise the outlife of SPRINT™ products at room temperature. It is ideal for structural components where improved impact performance and resistance to resin microcracking is desired. ST 95 has a flexible cure envelope from 12 hours at 85ºC (185ºF) to 1 hour at 120ºC (248ºF). This makes it suitable for use in regular part production as well as for the development of trial components. The material is highly drapeable and has been designed for simple vacuum bag processing. Structural SPRINT™ ST 95 can be used in the manufacture of a vast range of structural applications such as chassis, bulkheads, hulls and decks, for automotive and marine markets, as well as many other industrial applicati

 Open the catalog to page 1
ST 95-2

INSTRUCTIONS FOR USE 1. The moulding surface must first be treated with a release agent. If a Surface Film is required, this should be applied directly to the tool face prior to the lay-up of the SPRINT™. Please refer to Processing Notes for application details. The required number of plies of SPRINT™ are then placed on to the tool face. A thermocouple may be inserted into the lay-up outside the net trim line. Dry glass tows should be inserted between plies of SPRINT™ to provide an air evacuation path out of the laminate. The second end of the tow should be made available for contact with the...

 Open the catalog to page 2
ST 95-3

PRODUCT INFORMATION ST 95 structural SPRINT™ is available in carbon and glass, with a range of weights on a range of fabric and fibre combinations. Products are available with a standard resin content (40-42% by wt) and extra resin for core bonding (ranging from 47-50% by wt). Please see price list for the latest product information. The product formats listed to the right also benefit from 3rd Party Certification PRODUCT DESCRIPTION Biaxial Carbon Fabric ±45 300g/m2 30-55% resin content Germanischer Lloyd Woven Carbon Fabric 300g/m2 & 500g/m2 30-55% resin content Germanischer Lloyd Biaxial Glass...

 Open the catalog to page 3
ST 95-4

LAMINATE PROPERTIES CURED RESIN PROPERTIES Resin cast oven cured using standard processing techniques and standard cure of 10 hours at 85°C (185°F) PROPERTY TEST STANDARD Tensile Strength Tensile Modulus Compressive Strength Compressive Modulus WOVEN LAMINATE PROPERTIES - CARBON Cured using standard processing techniques and a standard cure time of 10 hours 85⁰C (185°F). PROPERTY TEST STANDARD Fabric / Fibre Description Skewed Carbon Woven Carbon Woven Carbon Resin Content Cure Method Cure Schedule Glass Transition Temperature 0° Tensile Cured Fibre Volume* 0° Tensile Strength (Normalised to...

 Open the catalog to page 4
ST 95-5

WOVEN LAMINATE PROPERTIES - GLASS Cured using standard processing techniques and a standard cure time of 10 hours 85⁰C (185°F). PROPERTY TEST STANDARD Fabric / Fibre Description Woven Glass Stitched Glass Woven Glass Resin Content Cure Method Cure Schedule Glass Transition Temperature 0° Tensile Cured Fibre Volume* 0° Tensile Strength (Normalised to 60%) 0° Tensile Modulus (Normalised to 60%) 0° Comp Str. Fibre Volume* 0° Compressive Strength (Normalised to 60%) 0° Comp. Mod. Fibre Volume* 0° Compressive Modulus (Normalised to 60%) 0° ILSS Fibre Volume* SACMA SRM1-94 ASTM D 3171 Method II ASTM...

 Open the catalog to page 5
ST 95-6

NOTICE All advice, instruction or recommendation is given in good faith but 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. All advice is given subject to the terms and conditions of sale (the Conditions) which are available on request from the Company or may be viewed at the Company’s Website: www.gurit.com/terms-and-conditions.aspx. The Company strongly recommends that Customers make test panels and conduct appropriate testing of any goods or materials supplied by the Company to ensure that...

 Open the catalog to page 6

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.