What is Loctite 515 used for?

You use it as a form-in-place gasket sealant on rigid machined metal flanges such as pumps and gearboxes.

How does this flange sealant cure?

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

What is the maximum gap fill for Loctite 515?

This sealant fills gaps up to 0.25 mm between rigid machined metal surfaces.

Does the sealant resist pressure immediately after assembly?

Yes, it provides instant resistance to low pressures immediately after assembling the flanges.

How can you inspect the applied sealant bead?

Loctite 515 fluoresces under UV light, allowing easy visual inspection of the applied bead.

LOCTITE 515 industrial surface sealant (50 ml accordion) - 2600859

Name: LOCTITE 515 industrial surface sealant (50 ml accordion) - 2600859
Brand: LOCTITE
SKU: 02333286
Price: 40.2 EUR
Availability: PreOrder

Supplier number: LOCTITE 2600859 | EAN 0079340014121

Recommended Retail Price €50.92

40.20 tax incl.

€33.22 excl. VAT (incl. all environmental contributions)

On order: delivered from 12/10/2026

The minimum purchase order quantity for the product is 10.

Ordered before 20:00 - delivered as of 12/10/2026
Free shipping
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 surface sealing on rigid flanges

Practical benefits

Flexible form-in-place seal: You create an instant custom gasket between machined metal faces that flexes smoothly with minor flange movements.
Immediate low-pressure resistance: You can test assembled flanges right away without delay thanks to immediate low-pressure sealing performance.
Visual inspection using Loctite: Under UV light, you quickly verify the complete and uniform application of your sealant bead.

In a nutshell

The right choise for

With Loctite 515 industrial flange sealant, you create a dependable form-in-place gasket for machined, rigid metal surfaces. It cures anaerobically in the absence of air between mating faces, filling gaps and surface variations up to 0.25 mm. Its flexible nature smoothly absorbs minor flange movements on pump housings, compressors, and gearboxes. You can test assembled flanges right away without downtime thanks to immediate low-pressure resistance. The 50 ml concertina bottle allows precise application, while its fluorescence under uv light ensures quick visual inspection of the applied bead.

Product information FAQ

€40.20

tax incl.

Key features according to our expert

Net volume: 50 ml
Principal hazard property: GHS07 Harmful or irritant
Relative density: 1,1
ADR packing group: Not applicable
UN number: Not applicable
ADR class: Not applicable
P-statements: P101; P102; P261; P273; P302 + P352; P337 + P313; P501
H-statements: H315; H319; H335; H412
Hazard class: GHS07 Harmful or irritant
Physical state: Liquid
Flash point: > 100 °C

Product description:

LOCTITE 515 - gasketing product - methacrylate - Henkel
LOCTITE 515 is a medium strength (6 N/mm² tensile shear strength), medium cure speed, methacrylate-based industrial gasketing product designed for machined, rigid metal flanges.
The product, which cures anaerobically, is suitable for gaps up to 0.25 mm.
It is used typically as a form-in-place product for pumps, thermostats, compressors, transmission housings and axle covers.

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.
P302 + P352: IF ON SKIN: Wash with plenty of water/…
P337 + P313: If eye irritation persists: Get medical advice/attention.
P501: Dispose of contents/container to ... (see safety data sheet).

Hazard statements

H315: Causes skin irritation.
H319: Causes serious eye irritation.
H335: May cause respiratory irritation.
H412: Harmful to aquatic life with long lasting effects.

All Features

Net volume: 50 ml
Principal hazard property: GHS07 Harmful or irritant
Relative density: 1,1
Adr packing group: Not applicable
Un number: Not applicable
Adr class: Not applicable
P-statements: P101; P102; P261; P273; P302 + P352; P337 + P313; P501
H-statements: H315; H319; H335; H412
Hazard class: GHS07 Harmful or irritant
Physical state: Liquid
Flash point: > 100 °C

Brand LOCTITE
02333286
EAN 0079340014121
Supplier number LOCTITE 2600859

Frequently asked questions about this product

Answered by specialists

What is Loctite 515 used for?: You use it as a form-in-place gasket sealant on rigid machined metal flanges such as pumps and gearboxes.
How does this flange sealant cure?: The product cures anaerobically in the absence of air between close-fitting metal surfaces.
What is the maximum gap fill for Loctite 515?: This sealant fills gaps up to 0.25 mm between rigid machined metal surfaces.
Does the sealant resist pressure immediately after assembly?: Yes, it provides instant resistance to low pressures immediately after assembling the flanges.
How can you inspect the applied sealant bead?: Loctite 515 fluoresces under UV light, allowing easy visual inspection of the applied bead.