What is Loctite 510 used for?

This anaerobic flange sealant is ideal for sealing rigid metal flanges, such as transmission and engine casings.

What is the maximum gap fill capability of Loctite 510?

It fills surface irregularities and gaps up to 0.25 mm.

What is the operating temperature range?

It withstands operating temperatures ranging from -55 °C to 200 °C.

How does Loctite 510 cure?

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

Is this product suitable for plastic flanges?

No, it is designed exclusively for rigid metal surfaces such as steel and aluminium.

LOCTITE 510 surface sealant (250 ml bottle) - 142609

Name: LOCTITE 510 surface sealant (250 ml bottle) - 142609
Brand: LOCTITE
SKU: 11010067
Price: 135.2 EUR
Availability: InStock

Supplier number: LOCTITE 142609 | EAN 5010266510729

Recommended Retail Price €170.88

135.20 tax incl.

€111.74 excl. VAT (incl. all environmental contributions)

On stock - immediately available | we have 6 products in stock.

Ordered before 20:00 - delivered as of 03/10/2026
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.
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High-temperature sealing for rigid metal flanges

Practical benefits

Reliable Loctite 510 formulation: You achieve a durable anaerobic seal on rigid metal flanges operating at temperatures up to 204 °C.
Effective gap filling capability: You compensate for surface scratches and irregularities up to 0.25 mm with ease.
Instant low-pressure resistance: You test assembled components immediately after fitting thanks to the instant low-pressure seal capability.

In a nutshell

The right choise for

With Loctite 510 flange sealant, you create a dependable and durable seal on rigid metal flanges operating at temperatures up to 204 °C. This liquid anaerobic gasket fills surface irregularities, scratches, and machining gaps up to 0.25 mm without shrinkage or compression set. Designed for rigid engine casings, transmission housings, and pump flanges made of steel or aluminium, it increases joint reliability. Thanks to its instant low-pressure resistance, you can test assemblies immediately after fitting, saving valuable maintenance time and preventing fluid or gas leaks.

Product information FAQ

€135.20

In stock - tax incl.

Key features according to our expert

Net volume: 250 ml
Relative density: 1,178
ADR packing group: III
ADR class: 9
Principal hazard property: GHS07 Harmful or irritant
UN number: UN3082
P-statements: P101; P102; P261; P273; P280; P333 + P313; P337 + P313; P501
H-statements: H317; H319; H335; H410
Hazard class: GHS07 Harmful or irritant; GHS09 Environmental hazard
Physical state: Liquid
Flash point: > 93 °C
Packaging: Tube

Product description:

LOCTITE 510 - Gasketing product - Henkel
LOCTITE 510 is a high temperature resistant anaerobic sealant which cures when confined in the absence of air between close-fitting metal surfaces.
Typical applications include sealing rigid flange faces on transmissions and engine casings.
It ensures an instant, low-pressure seal.
The product increases the torque capacity of assembled flanges.

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.
P333 + P313: If skin irritation or rash occurs: Get medical advice/attention.
P337 + P313: If eye irritation persists: Get medical advice/attention.
P501: Dispose of contents/container to ... (see safety data sheet).

Hazard statements

H317: May cause an allergic skin reaction.
H319: Causes serious eye irritation.
H335: May cause respiratory irritation.
H410: Very toxic to aquatic life with long lasting effects.

All Features

Net volume: 250 ml
Relative density: 1,178
Adr packing group: III
Adr class: 9
Principal hazard property: GHS07 Harmful or irritant
Un number: UN3082
P-statements: P101; P102; P261; P273; P280; P333 + P313; P337 + P313; P501
H-statements: H317; H319; H335; H410
Hazard class: GHS07 Harmful or irritant; GHS09 Environmental hazard
Physical state: Liquid
Flash point: > 93 °C
Packaging: Tube

Brand LOCTITE
11010067
EAN 5010266510729
Supplier number LOCTITE 142609

Frequently asked questions about this product

Answered by specialists

What is Loctite 510 used for?: This anaerobic flange sealant is ideal for sealing rigid metal flanges, such as transmission and engine casings.
What is the maximum gap fill capability of Loctite 510?: It fills surface irregularities and gaps up to 0.25 mm.
What is the operating temperature range?: It withstands operating temperatures ranging from -55 °C to 200 °C.
How does Loctite 510 cure?: It cures anaerobically in the absence of air between close-fitting metal surfaces.
Is this product suitable for plastic flanges?: No, it is designed exclusively for rigid metal surfaces such as steel and aluminium.