What is Loctite MR 3020 used for?

This spray holds pre-cut flat gaskets in place during assembly and improves overall sealing performance.

Which gasket materials are compatible with this spray?

It is suitable for use on rubber, cork, paper, and metal gaskets.

Does the adhesive film remain tacky after application?

Yes, it dries quickly to form a highly tacky, elastomeric film that keeps gaskets securely positioned.

Which fluids is the product resistant to?

It is resistant to petrol, diesel, water, grease, and oils.

How do you apply Loctite MR 3020?

Spray an even coating directly from the 400 ml aerosol can onto the gasket or flange mating surfaces.

LOCTITE 3020 high tack spray gasket improver (400 ml aerosol can) - 232345

Name: LOCTITE 3020 high tack spray gasket improver (400 ml aerosol can) - 232345
Brand: LOCTITE
SKU: 11030018
Price: 21.8 EUR
Availability: InStock

Supplier number: LOCTITE 232345 | EAN 3255460314595

21.80 tax incl.

€18.02 excl. VAT (incl. all environmental contributions)

On stock - immediately available | we have 4 products in stock.

Ordered before 20:00 - delivered tomorrow 03/10/2026
Shipping costs €11.99 VAT included | Free shipping for orders over a total amount of 125 euros
Delivery by DHL
Delivered from Belgium

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

Reliable gasket positioning and enhanced sealing

Practical benefits

Loctite MR 3020 bonds instantly: You hold pre-cut gaskets securely in place during assembly thanks to the fast-drying, high-tack adhesive film.
Enhances operational sealing: The film fills minor surface imperfections on flanges to significantly improve long-term seal reliability under load.
Resistant to automotive fluids: You ensure dependable joint performance with built-in resistance against petrol, diesel, oils, grease, and water.

In a nutshell

The right choise for

With the Loctite mr 3020 gasket improver, you fit pre-cut flat gaskets accurately without any slipping or misalignment. This fast-drying spray produces a highly tacky elastomeric film that securely holds rubber, cork, paper, and metal gaskets in place, even during vertical or overhead installations. It also fills minor surface imperfections on mating flanges to significantly boost sealing performance and prevent fluid leaks under pressure. Built to resist petrol, diesel, water, grease, and oils, it delivers dependable durability on automotive engines, gearboxes, and pumps. Simply apply an even coating directly from the convenient 400 ml aerosol can for immediate, reliable holding power.

Product information FAQ

€21.80

In stock - tax incl.

Key features according to our expert

Net volume: 400 ml
EUH-statements: EUH066
Relative density: 0,76
ADR packing group: Not applicable
ADR class: 2.1
Principal hazard property: GHS02 Flammable
UN number: UN1950
P-statements: P101; P102; P210; P211; P251; P261; P273; P280; P337 + P313; P410 + P412; P501
H-statements: H222; H229; H319; H336; H412
Hazard class: GHS02 Flammable; GHS07 Harmful or irritant
Physical state: Aerosol
Flash point: -97 °C
Packaging: Spray can

Precautionary statements

P101: If medical advice is needed, have product container or label at hand.
P102: Keep out of reach of children.
P210: Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P211: Do not spray on an open flame or other ignition source.
P251: Do not pierce or burn, even after use.
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.
P337 + P313: If eye irritation persists: Get medical advice/attention.
P410 + P412: Protect from sunlight. Do no expose to temperatures exceeding 50°C/ 122°F.
P501: Dispose of contents/container to ... (see safety data sheet).

Hazard statements

H222: Extremely flammable aerosol.
H229: Pressurised container: May burst if heated.
H319: Causes serious eye irritation.
H336: May cause drowsiness or dizziness.
H412: Harmful to aquatic life with long lasting effects.

Supplemental hazard information

EUH066: Repeated exposure may cause skin dryness or cracking.

All Features

Net volume: 400 ml
Euh-statements: EUH066
Relative density: 0,76
Adr packing group: Not applicable
Adr class: 2.1
Principal hazard property: GHS02 Flammable
Un number: UN1950
P-statements: P101; P102; P210; P211; P251; P261; P273; P280; P337 + P313; P410 + P412; P501
H-statements: H222; H229; H319; H336; H412
Hazard class: GHS02 Flammable; GHS07 Harmful or irritant
Physical state: Aerosol
Flash point: -97 °C
Packaging: Spray can

Brand LOCTITE
11030018
EAN 3255460314595
Supplier number LOCTITE 232345

Frequently asked questions about this product

Answered by specialists

What is Loctite MR 3020 used for?: This spray holds pre-cut flat gaskets in place during assembly and improves overall sealing performance.
Which gasket materials are compatible with this spray?: It is suitable for use on rubber, cork, paper, and metal gaskets.
Does the adhesive film remain tacky after application?: Yes, it dries quickly to form a highly tacky, elastomeric film that keeps gaskets securely positioned.
Which fluids is the product resistant to?: It is resistant to petrol, diesel, water, grease, and oils.
How do you apply Loctite MR 3020?: Spray an even coating directly from the 400 ml aerosol can onto the gasket or flange mating surfaces.