Loctite 577 Thread Lock

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Subtotal (1 unit)*

£133.87

(exc. VAT)

£160.64

(inc. VAT)

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In Stock
  • 52 unit(s) ready to ship
  • Plus 54 unit(s) ready to ship from another location
  • Plus 70 unit(s) shipping from 08 May 2026
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Units
Per unit
1 - 5£133.87
6 - 14£128.52
15 +£125.84

*price indicative

RS Stock No.:
496-079
Mfr. Part No.:
LOCTITE® 577
Brand:
Loctite
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Brand

Loctite

Product Type

Thread Lock

Colour

Yellow

Trade Name

Loctite 577

Standards/Approvals

No

Specific Gravity

1.09

Maximum Operating Temperature

150°C

Chemical Composition

Dimethacrylate Ester

Loctite Sealant PasTE For Thread Sealing


The Loctite yellow 250ml gasket sealant paste is a general-purpose thread sealant for straight/straight and straight/taper threads and fittings. It fills the space between threaded parts and seals and locks at the same time. This paste is composed of methacrylate and has an excellent chemical and thermal resistance. It is designed for the locking and sealing of metal pipes and fittings as well as other threaded assemblies. This product provides an instant, low-pressure seal for metal pipes and fittings. It will not creep, shrink or shred. The product offers less migration of liquid product after application.

Features and Benefits


When fully cured, the sealant can withstand pressure more than 200bar

Chemical ingredient present is methacrylate

Medium strength

Chemical ingredient present is methacrylate

Higher-strength on contaminated surfaces

High viscosity, thixotropic

Improved thermal performance

Offers gap performance to 0.25 mm

Operating temperature ranges between -55°C and 150°C

high-performance on passive metals without an activator

Easy to apply

Applications


For medium strength applications

Suitable for sealing of pipe fittings and coarse threaded components

Thread sealing

Certifications


ANSI/ESD S20.20:2014

BS EN 61340-5-1:2007

DVGW approved

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