H.B. Fuller Red Gel

H.B. Fuller Red Gel is a high-strength, single-component, anaerobic threadlocking adhesive gel. Red Gel Threadlocker prevents the loosening of threaded fasteners. It is suitable for applications where disassembly with hand tools is required for servicing. Its innovative pump design improves dispensing ease and accuracy while also limiting cleanup.

Chemical Family: Dimethacrylate Ester

Product Type: 1K (1 component) Adhesive, Anaerobic Adhesive, Thread Locker

Application Area: Fasteners, Threading Operations

Features: High Strength, Thixotropic

Technical Data Sheet
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Enhanced TDS

Identification & Functionality

Chemical Family

Features & Benefits

Ready-to-Use Product Features

Applications & Uses

Markets
General Instructions

Surfaces to be bonded should be clean and dry and free of grease. Product should be applied in enough quantity to fill all engaged threads. The product performs best in thin bond gaps. Very large gaps may create gaps that will affect the cure speed and overall strength. Good contact is essential. An adequate bond develops in 15 to 45 minutes and maximum strength is attained in 24 hours. This product is not recommended for use in pure oxygen environments and/or oxygen-rich systems and should not be slected as a sealant for chlorine or other strong oxidizing materials. This product is not designed for plastics, particularly thermoplastics where stress cracking of the plastic could result. It is recommended to confirm compatibility of the product with all substrates prior to use.

Properties

Color
Physical Form
Typical Properties
ValueUnitsTest Method / Conditions
Specific Gravity1.1--
Cured Properties
ValueUnitsTest Method / Conditions
Full Cure Conditions24.0h-
Cure AppearanceRed solid--
Locking Strengthhigh--
Breakaway Torquemin. 150--
Prevailing Torquemin. 200--
Pin/Collar Shear Strength2500.0psi-
Service Temperature- 55 - 150°C-
Uncured Properties
ValueUnitsTest Method / Conditions
Flash Pointmin. 93°C-
Gap Fill0.5inch-
Rheological Properties
ValueUnitsTest Method / Conditions
Viscosity (at 20°C - 25°C, 0.50 rpm)100,000 - 200,000cPBrookfield

Technical Details & Test Data

Curing Performance

The rate of cure will depend on environmental conditions and the substrates used. The gap of the bond line will affect set speed. Smaller gaps tend to increase set speed. Activators may be applied to further improve set speed, but may also impair overall adhesive performance.

Technical Details & Test Data

Set Time on Various Substrates

H.B. Fuller Red Gel - Technical Details & Test Data

Hot Strength (%RT strength, tested at temperature)

H.B. Fuller Red Gel - Technical Details & Test Data - 1

Heat Aging (aged at temp. indicated and tested @ 22°C)

H.B. Fuller Red Gel - Technical Details & Test Data - 2

Solvent Resistance
Solvent Example Resistance
Alcohol 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 acid 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
  • Storage Temperature: 20°C.
  • Products should be stored unopened in a cool, dry place out of direct sunlight. Products may be refrigerated for improved shelf life, but should be brought back to room temperature before use.