ABLESTIK FDA 2T

Harmonization Code : 3506.91.90.99 | Prepared glues and other prepared adhesives, not elsewhere specified or included; products suitable for use as glues or adhesives, put up for retail sale as glues or adhesives, not exceeding a net weight of 1 kg ; Adhesives based on polymers of headings 3901 to 3913 or on rubber; Other ; Other

ABLESTIK FDA2T

Main features

  • 1.20 x 10^14 ohm-cm Volume Resistivity
  • 3-Hour Working Window
  • 1,800 psi Aluminum Lap Shear

Product Description

LOCTITE® ABLESTIK FDA 2T is a two-component, electrically insulating epoxy adhesive developed for medical-device bonding applications. The amber, medium-viscosity system mixes at 100:93 by weight and provides a typical work life of 3 hours. It can be cured for 24 hours at 25°C or accelerated with heat for 1 to 4 hours at 65°C. The cured adhesive has a documented operating-temperature range of -70 to 145°C, a typical volume resistivity of 1.20 × 1014 ohm-cm at 25°C, and aluminum-to-aluminum lap shear strength of 1,800 psi.

Key features

  • Electrically insulating: The cured adhesive has a typical volume resistivity of 1.20 × 1014 ohm-cm at 25°C and dielectric strength of 420 V/mil.
  • Broad operating-temperature range: Documented for operation from -70 to 145°C without implying unchanged properties throughout the range.
  • Room-temperature or heat cure: Guideline schedules include 24 hours at 25°C or 1 to 4 hours at 65°C.

Applications / Suitable for

  • Catheters
  • Hearing aids
  • Dental products
  • Other biomedical instruments and devices

Technical Specifications

General Properties
Chemistry Type Chemistry Type
Epoxy
Color Color
Amber
Mix Ratio Mix Ratio
100 : 93
Specific Gravity Specific Gravity
1.12
Work life @25°C Work life @25°C
3 hours
Thermal Properties
Glass Transition Temperature (Tg) Glass Transition Temperature (Tg)
70 °C
Operating Temperature Operating Temperature
-70 to 145 °C
Physical Properties
Viscosity Viscosity
26000 mPa.s
Mechanical Properties
Elongation Elongation
9 %
Electrical Properties
Volume Resistivity Volume Resistivity
1.20×10¹⁴ Ohms⋅cm

Additional Information

Technical properties

As-supplied / before-processing properties

Typical properties and processing characteristics of the mixed adhesive before cure.

Property Value Unit Method / condition
Technology Epoxy — Two-component adhesive system
Color Amber — Mixed adhesive
Mix ratio — resin:hardener 100:93 by weight Resin-to-hardener ratio
Viscosity 26,000 mPa·s (cP) Brookfield RV, spindle 7, 10 rpm at 25°C
Specific gravity 1.12 — Mixed adhesive
Reactive solids content 100 % Typical value
Work life 3 hours Test conditions and endpoint not stated
Cure schedule 24 hours or 1–4 hours — 24 hours at 25°C or 1–4 hours at 65°C; guideline recommendations
Optimal storage 27 °C Store unopened in a dry location; package labeling governs applicable storage information
Technical properties

After-processing / final-state properties

Typical properties and performance data for the cured adhesive. Values are reference data and are not product specifications.

Property Value Unit Method / condition
Operating-temperature range -70 to 145 °C Documented product range
Coefficient of thermal expansion 5.30 × 10-5 cm/cm/°C Method and temperature region not stated
Glass-transition temperature 70 °C Ultimate Tg; method and cure condition not stated
Hardness 80 Shore D Cure condition not stated
Elongation 9 % Method and cure condition not stated
Volume resistivity at 25°C 1.20 × 1014 ohm-cm Test method and specimen configuration not stated
Dielectric strength 420 V/mil Test method, thickness, and conditioning not stated
Dielectric constant 3.4 — At 25°C and 1 kHz
Dissipation factor 0.02 — At 25°C and 1 kHz
Lap shear strength — aluminum to aluminum 1,800 psi Substrate preparation, bondline, cure condition, test method, and test temperature not stated

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