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FILM ADHESIVE EFA 4330

(STRUCTURAL ADHESIVE FOR HONEYCOMB SANDWICH FABRICATION)

EFA 4330 is a adhesive developed by Indian Space Research Organisation at its Vikram Sarabhai Space Centre. Film adhesives are widely used for fabrication of honeycomb sub-structures both metallic and composite type. They find extensive application in aerospace due to light weight and the high strength offered to the joint. They can also be used in shipping and boat manufacturing industry for fabrication of sandwich structures and other composite assemblies.

Salient features are:

• Accommodate vehicle sway of ±1mm

• One-component, heat curable, toughened, high strength polymer film adhesive

• Heat curable (175°C & 125°C type)

• Space qualified

Properties

Values

Thickness,µ

100 ±10

Areal density(gsm)

180 ±10 & 100±10

Lap shear strength at 25°C (Al/Al), MPa

32 – 34

LSS at 100°C (Al/Al), MPa

26 – 28

LSS at-196°C(Al/Al), MPa

26 – 28

LSS after Humidity Exposure (Al/Al, MPa)

28 – 30

Honeycomb Flat wise tensile strength at 25°C , MPa

4.5 – 5

TML

0.642

CVCM

0.026

 

TECHNOLOGY TRANSFER FROM ISRO

ISRO is willing to offer the knowhow of this technology to suitable entrepreneurs / industries in India. Capable manufacturing industries interested in acquiring this knowhow may write with details of their present activities, requirements and plans for implementation, infrastructure and technical expertise available with them, their own market assessment, if any, and plans for diversification to the address given below.

For further details, please contact: 

Smt U Sreerekha

Dy. Head Technology Transfer & Industrial Coordination Division (TT&IC)

Vikram Sarabhai Space Centre,

Thiruvananthapuram-695 022

E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

Ph: 0471-2564081, Fax: 0471-2564134


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    Site last updated: Tuesday 12 December 2017
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