What is Loctite 121078 used for?

This retaining compound is designed for permanent bonding of cylindrical metal parts such as gears, shafts, bushes, and bearings.

What is the maximum diametrical clearance it can fill?

Loctite 121078 is suitable for cylindrical joints with a diametrical clearance of up to 0.25 mm.

What is the operating temperature range?

The product withstands service temperatures ranging from -55 °C to +175 °C.

How quickly does it fixture on steel?

The fixture time on steel is 3 minutes.

Why is this compound thixotropic and fluorescent?

Its thixotropic property prevents migration after application, while UV fluorescence enables simple quality inspection.

LOCTITE 121078 high viscosity green mounting adhesive (250 ml bottle) - 88098

Name: LOCTITE 121078 high viscosity green mounting adhesive (250 ml bottle) - 88098
Brand: LOCTITE
SKU: 08091583
Price: 242.2 EUR
Availability: PreOrder

Supplier number: LOCTITE 88098 | EAN 3255460161281

Recommended Retail Price €306.17

242.20 tax incl.

€200.17 excl. VAT (incl. all environmental contributions)

On order: delivered from 24/10/2026

Ordered before 20:00 - delivered as of 24/10/2026
Free shipping
Delivery by DHL

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How does it work?

For a purchase value of €99 to €125 excl. VAT, receive FREE LOCTITE 55 thread sealing cord 50 m (IDH 528244) worth €9.99.
For a purchase value of more than €125 excl. VAT, receive FREE LOCTITE SF 7850 hand cleaner 400 ml (IDH 2098250) worth €13.21.
The free item is automatically added to your order. No registration is required.
The promotion is valid from 01.10.2026 to 31.10.2026.
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High strength Loctite cylindrical retaining compound

Practical benefits

Permanent and secure assembly: You create an exceptionally strong bond on cylindrical metal joints that resists loosening from heavy shocks and vibration.
Thixotropic gap filling power: With its higher viscosity formulation, it stays in place and fills diametrical clearances up to 0.25 mm cleanly.
Broad operating temperature range: You achieve reliable retention across severe working environments with continuous thermal resistance from -55 °C to +175 °C.

In a nutshell

The right choise for

With Loctite 121078 retaining compound, you achieve permanent and dependable bonding for cylindrical metal assemblies. This high-viscosity green adhesive features a thixotropic formula that stays right where applied, cleanly bridging diametrical clearances up to 0.25 mm without running off. It effectively prevents loosening, slippage, and wear on heavy-duty components such as bearings, bushings, gears, and shafts. Featuring a rapid fixture time of 3 minutes on steel and an operating temperature range from -55 °C to +175 °C, it ensures lasting retention against severe vibration and shocks. In addition, uv fluorescence allows for quick and accurate quality inspection.

Product information FAQ

€242.20

tax incl.

Key features according to our expert

Net volume: 250 ml
Principal hazard property: GHS05 Corrosive
Packaging: Bottle
Relative density: 1,1
ADR packing group: Not applicable
ADR class: Not applicable
UN number: Not applicable
P-statements: P101; P102; P261; P273; P280; P302 + P352; P305 + P351 + P338; P333 + P313; P501
H-statements: H315; H317; H318; H335; H412
Hazard class: GHS05 Corrosive; GHS07 Harmful or irritant
Physical state: Liquid
Flash point: > 93 °C

Product description:

LOCTITE 121078

Characteristics:

LOCTITE 121078 is a green fastening adhesive with a higher viscosity making it a good choice for applications with a diametric clearance of max.0.25 mm
It is a high strength product for applications requiring permanent bonding and good temperature resistance
Fixation time on steel is up to 3 minutes and the product withstands temperatures from -55°C to + 175°C
Fluoresces for verification of presence.

Hazard statements

H315: Causes skin irritation.
H317: May cause an allergic skin reaction.
H318: Causes serious eye damage.
H335: May cause respiratory irritation.
H412: Harmful to aquatic life with long lasting effects.

Precautionary statements

P101: If medical advice is needed, have product container or label at hand.
P102: Keep out of reach of children.
P261: Avoid breathing dust/fume/gas/mist/vapours/spray.
P273: Avoid release to the environment.
P280: Wear protective gloves/protective clothing/eye protection/face protection.
P302 + P352: IF ON SKIN: Wash with plenty of water/…
P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P333 + P313: If skin irritation or rash occurs: Get medical advice/attention.
P501: Dispose of contents/container to ... (see safety data sheet).

All Features

Net volume: 250 ml
Principal hazard property: GHS05 Corrosive
Packaging: Bottle
Relative density: 1,1
Adr packing group: Not applicable
Adr class: Not applicable
Un number: Not applicable
P-statements: P101; P102; P261; P273; P280; P302 + P352; P305 + P351 + P338; P333 + P313; P501
H-statements: H315; H317; H318; H335; H412
Hazard class: GHS05 Corrosive; GHS07 Harmful or irritant
Physical state: Liquid
Flash point: > 93 °C

Brand LOCTITE
08091583
EAN 3255460161281
Supplier number LOCTITE 88098

Frequently asked questions about this product

Answered by specialists

What is Loctite 121078 used for?: This retaining compound is designed for permanent bonding of cylindrical metal parts such as gears, shafts, bushes, and bearings.
What is the maximum diametrical clearance it can fill?: Loctite 121078 is suitable for cylindrical joints with a diametrical clearance of up to 0.25 mm.
What is the operating temperature range?: The product withstands service temperatures ranging from -55 °C to +175 °C.
How quickly does it fixture on steel?: The fixture time on steel is 3 minutes.
Why is this compound thixotropic and fluorescent?: Its thixotropic property prevents migration after application, while UV fluorescence enables simple quality inspection.