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Loctite 577 Acrylic Sealant

Silmid P/N: VAR0001137
From £26.34 (excl VAT) £31.61 (Inc VAT)

Loctite 577 is a medium-strength, general purpose thread sealant for straight/straight and straight/taper threads and fittings.

Product Properties

Henkel Loctite®

Product Information

Loctite 577 is designed for the locking and sealing of metal pipes and fittings as well as other threaded assemblies. The product provides an instant, low-pressure seal for metal pipes and fittings. It will not creep, shrink or shred. It has excellent chemical and thermal resistance and offers less migration of liquid product after application.


  • Higher strength on contaminated surfaces Improved thermal performance
  • High performance on passive metals without an activator
  • Medium-strength, general purpose thread sealant for sealing metal threads
  • Suitable for all metals Instant low pressure seal
  • Excellent chemical resistance
  • Locks connection against vibration-induced loosening and other stresses
  • Easy to apply
  • Available in sizes 50ml and 250ml

Shipping information

Orders over £100 placed online will now qualify for FREE UK Mainland delivery*

Orders under £100 placed online for UK Mainland delivery is £12.00*

**Orders requiring Pre 10.00am Next Day delivery has also been lowered from £35.00 to £30.00, orders placed through the office will incur additional charges.** 

International delivery (door to door delivery) is available for selected countries worldwide. Shipping will be automatically calculated based on the weight, location and hazardous nature of the goods. Customers can also choose ex works to arrange their own collection.

Please refer to our delivery page for more information.