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Würth Medium-Strength Pipe and Thread Sealant

Würth Medium-Strength Pipe and Thread Sealant

0893577050

24 in stock

Key Features

  • Reliable medium-strength sealant for metallic pipe and thread connections with conical or cylindrical threads up to R3", conforming to ISO 7.1 standards.
  • Provides an instant sealing effect, allowing connections to be immediately loaded up to 5 bar and, after full curing, up to the burst pressure of the pipe system.
  • Medium-strength formulation allows disassembly with standard tools without damaging threads.
  • Exhibits excellent resistance to a wide range of media, including bases, gases, solvents, oils, and fuels.
  • Non-migrating formula - the sealant remains in the threads and does not extrude during assembly.
  • Supplied in a handy accordion bottle with a turn-lock dispensing nozzle for one-handed, controlled application and minimal waste.
  • Silicone-free, solvent-free, and oil-free, ensuring clean, residue-free application.
  • DVGW and NSF approved, suitable for use with drinking water and service water systems up to 82°C.
£26.99 GBP
£26.99 GBP
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Würth Medium-Strength Pipe and Thread Sealant
Würth Medium-Strength Pipe and Thread Sealant0893577050
Würth Medium-Strength Pipe and Thread Sealant0893577050
£26.99/ea 		£0.00
£26.99/ea £0.00

Description

Advanced Sealing Compound for Metallic Threaded Connections

Würth Medium-Strength Pipe and Thread and Sealant is a dimethacrylate-based anaerobic compound designed to provide reliable, long-lasting sealing for metallic threaded connections. It is suitable for conical and cylindrical threads up to R3" , in compliance with ISO 7.1 standards making it ideal for industrial, plumbing, and automotive applications.

Instant and Permanent Sealing Performance

The formulation provides an instant pressure seal up to 5 bar, allowing components to be pressurised and tested immediately after tightening. Once fully cured, the seal withstands pressures up to the burst strength, balancing reliable sealing with serviceability. Connections can be disasembled with standard hand tools, facilitating maintenance and rework without thread damage or galling.

Outstanding Chemical and Thermal Resistance

The cured sealant exhibits high resistance to fuels, oils, compressed air, cooling liquids, solvents, and weak alkalis, maintaining sealing integrity between -55°C and 150°C. Its versatility makes it suitable for water, air, and oil systems, including hydraulic, pneumatic, and fuel line applications.

Certifieed Safety and Performance

Würth Medium-Strength Pipe and Thread Selant is DVGW approved (reg. no. NG-5146BM0337), tested in accordance with DIN EN 751-1, and NSF/ANSI 61 certified for use in drinking and service water up to 82°C. It also complies with the German Environment Agency's 2016 recommendation for materials in contact with potable water.

Efficient Packaging for Professional Use

The innovative accordion bottle with adjustable dispensing nozzle provides excellent control over application quantity. It enables single-handed operation, reduces waste, and ensures precise application directly to threads. The design also allows complete product usage, minimising leftover residue.

Compatibility and Precautions

Due to its anaerobic curing mechanism (activated by metal contact and absence of air), this sealant may cure rapidly on copper or copper alloys, especially in warm water systems above 40 °C. Preliminary testing is recommended for such applications to avoid premature curing and micro-cracking. Prolonged exposure to uncured product can affect certain plastics, such as ABS, PMMA, polycarbonate, and polystyrene — these materials should be avoided in contact zones

More Information

Application Instructions

Specifications

Chemical Basis: Dimethacrylic acid ester

Colour: Yellow fluorescent

Weight of Content: 50 g

Density: 1.05 g/cm³ (DIN EN ISO 2811-1)

Viscosity (at 25 °C): 55,000–80,000 mPas (spindle 6/2.5 rpm) / 18,000–30,000 mPas (spindle 6/20 rpm)

Gap-Filling Capacity: Max. 0.50 mm

Thread Size Compatibility: Up to R3" (M80)

Initial Strength: 15–30 min

Functional Strength: 1–3 h

Final Strength: 6 h

Processing Temperature: +5 °C to +40 °C

Temperature Resistance: -55 °C to +150 °C

Breakaway Torque: 15–25 Nm (DIN EN 15865)

Prevail Torque: ≥2 Nm (DIN EN 15865)

Compressive Shear Strength: 10–20 N/mm² (ISO 10123)

Flashing Point: ≥100 °C

Curing Conditions: Exclusion of oxygen and contact with metal (copper or iron ions)

Shelf Life: 18 months (room temperature)

Silicone-Free: Yes

Solvent-Free: Yes

Oil-Free: Yes

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