H.B. Fuller 2999 is a single-component, high-viscosity gel cyanoacrylate adhesive. It is ideal for bonding porous materials or for applications where controlling adhesive flow is critical. H.B. Fuller 2999 offers maximum gap filling and repositioning time. It has been certified to ISO 10993-5 for cytotoxicity, making it appropriate for use in medical device applications.

Product Type: 1K (1 component) Adhesive, Reactive Adhesive

Application Area: Medical Devices

Compatible Substrates & Surfaces: Brass, Bronze, Copper, Metal, Steel

Chemical Family: Cyanoacrylates

Features: Chemical Resistant, Good Gap Filling Capabilities, High Viscosity

Technical Data Sheet
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Enhanced TDS

Identification & Functionality

Features & Benefits

Applications & Uses

Application Area
Compatible Substrates & Surfaces
Cure Method
General Instructions

Surfaces to be bonded should be clean and dry. Dispense a drop or drops to one surface only. Apply only enough to leave a thin film layer after compression. Press parts together and hold firmly for a few seconds. Good contact is essential. An adequate bond develops in less that one minute and maximum strength is attained in 24 hours. Wipe off excess adhesive from the top of the container and recap. products if left uncapped may deteriorate by contamination from moisture in the air. Because products cure by polymerization, whitening may appear on the surface of the container or the bonded materials. This will not affect adhesive performance.


Physical Form
Typical Properties
ValueUnitsTest Method / Conditions
Shear Strength***2730.0psi-
Temperature Range-67 to 203°F-
Fixture Time50.0sec-
Technical Data
ValueUnitsTest Method / Conditions
Specific Gravity1.06--
Cured Properties
ValueUnitsTest Method / Conditions
Service Temperature- 55 - 95°C-
Full Cure Time24.0h-
Cure AppearanceGel--
Uncured Properties
ValueUnitsTest Method / Conditions
Flash Point85.0°C-
Set Time (Ethylene Propylene Diene Monomer)15.0s-
Set Time (Steel)50.0s-
Set Time (Acrylonitrile Butadiene Styrene)18.0s-
Rheological Properties
ValueUnitsTest Method / Conditions
Viscosity9500 - 20500cP-

Regulatory & Compliance

Certifications & Compliance

Technical Details & Test Data

Curing Performance

Ambient surface moisture initiates the curing process. Handling strength is reached in a short time, and will vary based on environmental conditions, bond line gap, and other factors. Product will continue to cure for at least 24 hours before full strength and solvent resistance is developed.

Time Until Full Cure (% of RT strength)

H.B. Fuller 2999 - Time Until Full Cure (% of Rt Strength)

Performance Range by Substrate (N/mm²)

H.B. Fuller 2999 - Performance Range By Substrate (N/Mm²)

Heat Aging (aged at temperature indicated and tested at 22°C)

H.B. Fuller 2999 - Heat Aging (Aged At Temperature Indicated And Tested At 22°C)

Hot Strength (%RT strength, tested at temperature)

H.B. Fuller 2999 - Hot Strength (%Rt Strength, Tested At Temperature)

Performance of Cured Adhesive
Substrate N/mm² PSI
Steel 13.8 to 18.8 2000 to 2730
Rubber* 4.3 to 15.2 630 to 2200
AL 10.4 to 13.2 1510 to 1920
PC** 22.3 to 24.9 3240 to 3605
PVC** 18.3 to 26.7 2660 to 3875
ABS** 12 to 18.3 1740 to 2660


*Rubber figures given are typical. Your results may vary by specific rubber type.
**Tested to ASTM 4501
***n/r = not recommended

Solvent Resistance
Solvent Example Resistance

Ethanol, Methanol

+ + +
Ester (aromatic) Ethylacetate + + +
Ketone (aromatic)

Acetone, Benzophenone

– – –
Aliphatic hydrocarbon (alkanes)

Petrol, Heptanes, Hexane

+ + –
Aromatic hydrocarbons

Benzyl, Toluol, Xylol

+ + –
Halogenated hydrocarbons

Methylenchloride, Chloroform, Chlorobenzol

– – –
Weak aqueous

Nitrite, muriatic acid, sulphuric acid, phosphoric acid

+ + + (– – – if concentrated)
Weak aqueous base

sodium hydroxide solution, caustic potash

+ + + (– – – if concentrated)

Storage & Handling

Shelf Life
12 Months
Storage Conditions

Containers should be stored in a cool, dry, dark area. Storage temperature 15.5°C - 25°C (60°F - 77°F), without exposure to direct light or heat. Do not refrigerate.