Which materials is Loctite 518 suitable for?

It is designed for rigid metal flanges made of iron, steel, and aluminium.

How does this sealant cure?

It cures anaerobically in the absence of air between close-fitting metal surfaces.

What is the maximum gap size it can seal?

It accommodates surface irregularities and fills gaps up to 0.25 mm.

What is the volume of this cartridge?

This standard cartridge contains 50 ml of liquid gasketing sealant.

Does it provide immediate pressure resistance?

Yes, it forms an instant seal against low pressures directly after assembly.

LOCTITE 518 surface sealant (50 ml standard tube) - 2069176

Name: LOCTITE 518 surface sealant (50 ml standard tube) - 2069176
Brand: LOCTITE
SKU: 11010213
Price: 33.6 EUR
Availability: InStock
Rating: 10 (1 reviews)

Supplier number: LOCTITE 2069176 | EAN 5010266012094

1 review(s)

33.60 tax incl.

€27.77 excl. VAT (incl. all environmental contributions)

On stock - immediately available

Delivery by DHL

✆ Talk to a specialist

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.
Loctite Buy & Get deals are recognisable by the promotion label on the product page. Click the label to view all available deals.

Reliable sealing with Loctite 518

Practical benefits

Instant low pressure seal: You can perform on-line pressure tests immediately after assembling rigid metal flanges.
Effective gap fill capability: You reliably seal surface irregularities and gaps up to 0.25 mm without leaking.
Tolerant to surface contamination: You achieve full curing performance even on surfaces with light oil or fluid residue.

In a nutshell

The right choise for

With Loctite 518 flange sealant, you create a dependable, leak-free seal across rigid steel, iron, and aluminium mating surfaces. This liquid gasketing material cures anaerobically between close-fitting joints, filling microscopic irregularities and gaps up to 0.25 mm with ease. Highly tolerant to light oil residue, it delivers an instant low-pressure seal immediately after assembly so you can keep work moving without delay. Ideal for engine casings and gearbox housings, it replaces conventional pre-cut gaskets while preventing fluid leaks. The practical 50 ml cartridge provides precise application for maintenance and mechanical assembly jobs.

Product information FAQ Reviews

€33.60

In stock - tax incl.

Key features according to our expert

Net volume: 50 ml
Relative density: 1,1
ADR packing group: Not applicable
ADR class: Not applicable
Principal hazard property: GHS07 Harmful or irritant
UN number: Not applicable
P-statements: P273; P280; P302 + P352; P333 + P313; P337 + P313
H-statements: H315; H317; H319; H412
Hazard class: GHS07 Harmful or irritant
Physical state: Liquid
Flash point: > 100 °C
Packaging: Cartridge

Product description:

Medium-strength, general purpose gasketing product - excellent contamination tolerance.
Ideal for use on casted iron, steel and aluminum flanges.
LOCTITE 518 cures when confined in the absence of air between close-fitting metal surfaces.
It is an anaerobic gasketing material designed for use on rigid iron, aluminum, and steel flanged mating surfaces.
Fills gaps up to 0.25mm and forms a flexible, chemical-resistant seal that will not tear or decay.
Parts disassemble easily, even after extended service.
Typical applications include sealing close-fitting joints between rigid metal faces and flanges.
It is also used as a formed-in-place gasket on rigid flanged connections, e.g. transmissions and engine housings.
NEW: Henkel has recently improved the product formulation of LOCTITE 518 providing: Higher strength on contaminated surfaces Better flexibility and improved adhesion Enhanced sealing capability Improved gap cure High performance on passive metals without an activator

Precautionary statements

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/…
P333 + P313: If skin irritation or rash occurs: Get medical advice/attention.
P337 + P313: If eye irritation persists: Get medical advice/attention.

Hazard statements

H315: Causes skin irritation.
H317: May cause an allergic skin reaction.
H319: Causes serious eye irritation.
H412: Harmful to aquatic life with long lasting effects.

All Features

Net volume: 50 ml
Relative density: 1,1
Adr packing group: Not applicable
Adr class: Not applicable
Principal hazard property: GHS07 Harmful or irritant
Un number: Not applicable
P-statements: P273; P280; P302 + P352; P333 + P313; P337 + P313
H-statements: H315; H317; H319; H412
Hazard class: GHS07 Harmful or irritant
Physical state: Liquid
Flash point: > 100 °C
Packaging: Cartridge

Brand LOCTITE
11010213
EAN 5010266012094
Supplier number LOCTITE 2069176

Frequently asked questions about this product

Answered by specialists

Which materials is Loctite 518 suitable for?: It is designed for rigid metal flanges made of iron, steel, and aluminium.
How does this sealant cure?: It cures anaerobically in the absence of air between close-fitting metal surfaces.
What is the maximum gap size it can seal?: It accommodates surface irregularities and fills gaps up to 0.25 mm.
What is the volume of this cartridge?: This standard cartridge contains 50 ml of liquid gasketing sealant.
Does it provide immediate pressure resistance?: Yes, it forms an instant seal against low pressures directly after assembly.

Questions about this product?

Our product specialists are happy to help with any questions about this range. Call, email or chat with us!

Chat with us

0032 3 74 000 41 [email protected]

Reviews about LOCTITE 518 surface sealant (50 ml standard tube) - 2069176

10,0 op 10

1 review(s)

5 stars

(1)

4 stars

(0)

3 stars

(0)

2 stars

(0)

1 stars

(0)

Review Terms and Conditions Klium

10/10

19/03/2018