Epoxy Carbon Glass Prepregs

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Prepregs / B Stage Prepregs

A prepreg / B stage material consists of a reinforcement material pre-impregnated with a resin matrix in controlled quantities.


Prepregs are ultimate composites, which cure at high temperature and transform into a solid structural material that is highly durable, temperature resistant, exceptionally stiff and extremely lightweight. Prepregs are considered best in terms of performance for the manufacture of composite components.

3A provides a range of prepregs using specially formulated epoxy, phenolic and silicone resin matrix systems. 3A prepregs are reinforced with woven, multiaxial and unidirectional (UD) fibers.

3A Associates is one of the largest manufacturer of prepreg materials in India. We make a wide range for applications like constructions, medical equipment, sporting goods, Industrial, Electrical and Aerospace. We are India’s one of the only company which is a qualified supplier of prepregs for Space and Aerospace applications.

Types of substrates: Type of Resins
Carbon fabric Epoxy
Glass fabric Toughened Epoxies
Aramide Phenolic
Ceramic papers Silicones
Aramide papers
Non-woven Fleece

Epoxy Prepregs:

We manufacture a wide range of Epoxy prepregs

Key features of Epoxy Prepregs

1) Glass Transition properties / Thermal Properties

We have Prepregs above 200C glass transition temperature, allowing you to use composites at all temperature ranges.

2) Good outlife life

We manufacture prepreg range having very good outlife. These prepreg materials do not need stringent cold storage or cold transportation.

3) Excellent Mechanical Properties

We offer prepregs with very high ILSS, high compressive strength, good tensile strength and modulus.

 4) Flow control Prepregs

We offer prepregs where the flow of the resin can be controlled as per customer requirement.

For details please email us at sales@3associate.com / customersupport@3aassociate.com.

Phenolic Prepregs

We manufacture phenolic prepregs for ablative and transportation applications. For details please email us at sales@3associate.com / customersupport@3aassociate.com

Silicone prepregs

We are amongst very few companies in the World which manufacture Silicone prepregs and are used for high-temperature applications. For details please email us at sales@3associate.com / customersupport@3aassociate.com

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