SHD Composites VTFA400

Shanghai Sunwise Chemical VTFA400 (DF034) toughened epoxy adhesive film is design to cure between 65°C and 120°C, allowing flexibility in component manufacture.

Chemical Family: Epoxy & Epoxy Derivatives

Functions: Adhesive, Surface Finish

Technical Data Sheet

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Identification & Functionality

Composite Materials Functions

Features & Benefits

Labeling Claims
Key Features
  • Cure temperature from 65°C to 130°C
  • Service temperature up to 125°C after post cure
  • Low CTE and shrinkage
  • Work life at 20°C: 21 days
  • Storage life at -18°C: 12 months
  • Very low VOC content – no added solvents during manufacture

Applications & Uses

Composites Processing Methods
Typical Applications

General purpose

Properties

Typical Properties
ValueUnitsTest Method / Conditions
Cure Temperature65 - 120°C
Cure Time16 - 1hrs,mins
Outlife21months
Tg Onset135
Tg Peak147
Service Temperature125°C

Technical Details & Test Data

Cure Cycles and Performances
  • Recommended Initial cure: 65°C for 16h, at a ramp rate of 3.0°C/min
  • Recommended Post cure: 120°C for 1h, at a ramp rate of 0.3°C/min (where required for high Tg)
Cure Duration Tg
65°C (minimum) 16 hours 75°C
80°C 5 hours 90°C
100°C 2 hours 110°C
120°C (maximum) 1 hour 130°C
  • Curing Schedule is meant to be a guide only and is subject to local conditions.
  • To avoid exotherm particular care must be taken with thick laminates.

           Ramp rates must not exceed 3.0°C per minute during initial cure.

           Ramp rates must not exceed 0.3°C per minute during post cure.

Safety & Health

Health And Safety

This material contains epoxy resin which can cause allergic reactions with skin contact and must avoid repeated and prolonged skin contact.

The following precautions must be taken when using epoxy resin prepregs:

  • Overalls must be worn
  • Impervious gloves must be worn.
  • Curing schedule is meant to be as a guide only and is subject to local conditions.
  • To avoid exotherm, particular care must be taken with thick laminates.
  • Ramp rates must not exceed 3.0°C/min during initial cure and 0.3°C/min during post cure.

Packaging & Availability

Packaging Type

Storage & Handling

Storage and Out Life

This material should be kept frozen at -18°C. It must be kept sealed in a polythene bag which must not be opened until fully thawed to room temperature. If the material is not fully used, then the material must be resealed in the polythene bag to prevent moisture absorption.