Description
LOCTITE® 549 is an orange, medium strength, slow curing, thixotropic methacrylate gasketing product. It cures in the absence of air at room temperature when confined within close fitting metal parts to seal rigid metal faces and flanges. The viscosity is 20,000 mPas and service temperature -55°C to 150°C (-67°F to 302°F).
Technical Specification
- Pack size: 50 ml tube (Loctite no. 230242)
- Available as well in 250 ml tube
Application
- close fitting joints between rigid metal faces and flanges
- as a formed-in-place gasket for pumps, thermostats, compressors, transmission housings and axle covers
Characteristics
- room-temperature curing
- instant seal to low pressures
- Composition: dimethacrylate ester
- Color: orange
- Content: 250ml tube
Technical Specification
| Chemical basis / base | Methacrylate |
| Color | Orange |
| Key characteristics | Thixotropic |
| Lab shear strength | 3.6 N/mm² |
| Recommended for use with | Metal: aluminum, Metal: steel |
| Viscosity, Brookfield – RVT, @ 25.0 °C Spindle 6, speed 20 rpm | 10000.0 – 35000.0 mPa·s (cP) |
Hazard Information (CLP)

Signal word: Danger
Hazard Statements (H-Sentences)
- H315: Causes skin irritation.
- H319: Causes serious eye irritation.
- H373: May cause organ damage through prolonged or repeated exposure.
Precautionary Statements (P-Sentences)
Prevention:
- P261: Do not breathe vapors, mist, or spray.
- P280: Wear protective gloves, eye protection, and face protection.
- P264: Wash affected area thoroughly after handling.
Response:
- 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.
- P337+P313: If eye irritation persists: Get medical advice/attention.
- P332+P313: If skin irritation occurs: Get medical advice/attention.
- P362: Take off contaminated clothing.
Storage and Disposal
Dispose of contents and/or container according to Federal, State/Provincial, and local governmental regulations.
Henkel AG & Co. KGaA, Henkelstr. 67, 40589 Düsseldorf, GERMANY, +49 211 7970, [email protected], www.henkel.com






stefan88 –
Great service and product. Fits perfectly. Fast shipping, perfect product. Price matches the quality.
Noah –
Super practical. As expected, top-notch. Perfect in every detail.
Claire –
I’ve been using it for 2 weeks and already see results!
cedric_fr –
Received quickly.
felix_x –
Reliable and stable. Good build quality and reliable. Product arrived well packaged. Works great.
Julius –
As expected, top-notch. Very practical. Excellent product.
Rafael –
Very practical and easy to use. Great purchase, thank you. Everything perfect, would buy again. Very satisfied with the purchase.
Cristiano –
Well made and durable. Delivery faster than expected. Very fast shipping.
Caleb –
Highly recommended. Very practical and easy to use.
andrea_roma –
Top product, would definitely recommend. Very satisfactory. Very functional.
luke_star –
Very satisfied with the purchase. Top seller. Fast and secure delivery.
francesco_s –
Top product, top price. Perfect for what I needed. Everything perfect and fast. Quality is excellent.