Toray MS-4H

Toray MS-4H is a 25.4 mm (1”) carbon fiber/epoxy resin compression molding system using high strength standardmodulus (HS) carbon fiber. MS-4H is an excellent low-cost, high performance molding compound that has been qualified to military and commercial Applicationss. It has excellent out time stability and processes very well in medium-to-large heavy parts. 138°C (280°F) Fast Cure Standard-Modulus Compression Molding System

Functions: Molding Compound

Reinforcement Material: Carbon Fibers

Processing Methods: Compression Molding, Prepreg Processing

Technical Data Sheet

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Identification & Functionality

Chemical Family: Epoxy & Epoxy Derivatives
Reinforcement Material: Carbon Fibers
Composite Materials Functions: Molding Compound
Technologies: Composite Materials
Product Families: Composite Materials — Prepregs & Molding Compounds
Bulk Molding Compounds (BMC)

Features & Benefits

Materials Features: High Strength

Applications & Uses

Markets: Automotive & Transportation
Applications: Automotive & Transportation — Transportation
Aerospace & Aviation
Composites Processing Methods: Compression Molding,
Prepreg Processing
Recommended Applications: Launch

Space & Satellite

Aircraft Interiors

Aerostructures

Properties

Physical Form: Prepreg
Thermal Properties
Typical Properties

	Value	Units	Test Method / Conditions
Tg (by DSC) post cured at 177°C (350°F)	191 (375)	°C (°F)	—
Thermal Expansion X,Y	5.4–9.0 (3–5)	ppm/°C (ppm/°F)	—

	Value	Units	Test Method / Conditions
Density	1.48–1.52	g/cc	—
Fiber Length	25.4 (1”)	mm (mm)	—

Storage & Handling

Shelf Life: Out Life: 14 days at 25°C (77°F)

Frozen Storage Life: 6 months at -18°C (< 0°F)

Out life is the maximum time allowed at room temperature before cure.

Toray MS-4H

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