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Würth Low-Strength Pipe and Thread Sealant with PTFE

Würth Low-Strength Pipe and Thread Sealant with PTFE

0893511050

24 in stock

Key Features

  • Low-strength anaerobic sealant for metallic pipe and thread connections up to R3", conforming to ISO 7.1 (conical and cylindrical threads).
  • Instant sealing capability - tightened joints can be immediately loaded up to 5 bar; once fully cured, withstands the burst pressure of the pipe system.
  • Low strength for easy disassembly, ideal for components that require frequent maintenance or adjustment.
  • High resistance to numerous gases, oils, fuels, solvents, and basic media, ensuring long-term reliability.
  • Thixotropic formula prevents migration - the compound remains within the threads for clean and secure assembly.
  • Enhanced sealing performance with PTFE, reducing friction and ensuring smooth, uniform tightening.
  • Supplied in a practical accordion bottle with turn-lock nozzle and adjustable flow control for one-handed precision application and minimal waste.
  • Silicone-free, solvent-free, and oil-free formulation ensures compatibility with a wide range of systems.
  • DVGW and NSF certified, suitable for drinking water and service water systems up to 82°C.
£34.99 GBP
£34.99 GBP
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Würth Low-Strength Pipe and Thread Sealant with PTFE
Würth Low-Strength Pipe and Thread Sealant with PTFE0893511050
Würth Low-Strength Pipe and Thread Sealant with PTFE0893511050
£34.99/ea 		£0.00
£34.99/ea £0.00

Description

Professional Sealant for Precision Threaded Connections

Würth Low-Strength Pipe and Thread Sealant PTFE is a methacrylic-based anaerobic compound formulated for low-strength sealing of metal threads in pipework and fittings up to R3" (M80). It provides an immediate, pressure-tight seal and prevents loosening caused by vibration or thermal cycling.

PTFE-Enhanced for Smooth Assembly

The inclusion of PTFE improves lubrication and ensures a controlled tightening torque, reducing the risk of thread damage during installation. This enables consistent sealing performance and easy disassembly for maintenance or repositioning.

Instant and Reliable Sealing Performance

When applied to the thread, the sealant begins to cure in the absence of oxygen and in contact with metal ions. Joints can be loaded to approx. 5 bar immediately, allowing quick testing or system operation. After complete curing, the seal withstands pressures up to the pipe's burst limit, ensuring permanent sealing reliability even under demanding service conditions.

Low Strength - Easy Maintenance

Designed for applications where regular dismantling is required, this sealant offers low mechanical strength with a breakaway torque of 4-10 Nm. It allows easy removal using standard hand tools, without damaging threads or fittings.

Resistant to a Wide Range of Fluids and Conditions

The product demonstrates excellent chemical resistance to hydraulic fluids, oils, gases, fuels, coolants, and solvents. It performs consistently across temperatures ranging from -55°C to 150°C, making it ideal for water, air, fuel, and lubrication systems in industrial, marine, and vehicle applications.

Certified for Drinking and Service Water Applications

  • DVGW approval: NG-5146BM0338, tested per DIN EN 751-1.
  • NSF/ANSI 61 certification for use in service and drinking water systems up to +82 °C.

Note: Not permitted in domestic gas installations in Germany.

Intelligent Dispensing System

Packaged in a handy accordion-style bottle, the product enables precise, one-handed application. The turn-lock nozzle and adjustable flow control allow users to fine-tune bead size, reducing waste and ensuring consistent results. The packaging is also designed for complete emptying, optimising product usage and economy.

Material Compatibility and Precautions

As with other anaerobic sealants, contact with copper and copper alloys can accelerate curing, potentially causing micro-craks in warm water applications (>=40°C). Conduct preliminary testing when used on these materials. Avoid prolonged contact with sensitive plastics such as ABS, PMMA, polycarbonate, and polystyrene, which may degrade upon exposure.

More Information

Application Instructions

  1. Ensure the threads are dry, clean, and free from dust, oil, or grease. Remove old sealant residues and contamination.
  2. Apply the sealant evenly to the male thread to cover the sealing surfaces fully.
  3. Assemble and tighten the joint immediately.
  4. Initial sealing occurs instantly; initial strength is achieved in 10-20 minutes, functional strength within 1-3 hours, and full cure after 24 hours.
  5. Once cured, the joint can withstand system pressures up to the burst limit of the pipes.

Usage Notes

  • Processing temperature 5°C to 35°C/
  • Store at room temperature in a sealed container. Shelf life 18 months from production.
  • Not suitable for non-metallic threads or plastic fittings.
  • Perform preliminary tests before use on copper pipes exposed to water above 40°C.

Specifications

Chemical Basis: Methacrylic acid ether

Colour: White

Contents: 50 g

Density: 1.1 g/cm³ (DIN EN ISO 2811-1)

Viscosity (25 °C, Brookfield RVT): 180,000–300,000 mPas (Spindle 7/2.5 rpm)

Gap-Filling Capacity: Max. 0.50 mm

Thread Compatibility: Max. R3" / M80

Initial Strength: 10–20 min

Functional Strength: 1–3 h

Final Cure Time: 24 h

Processing Temperature: +5 °C to +35 °C

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

Breakaway Torque: 4–10 Nm (DIN EN 15865)

Prevail Torque: ≥1 Nm (DIN EN 15865)

Compressive Shear Strength: 2–6 N/mm² (ISO 10123)

Flashing Point: ≥100 °C

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

Shelf Life: 18 months (at room temperature)

Silicone-Free: Yes

Solvent-Free: Yes

Oil-Free: Yes

Certifications: DVGW (NG-5146BM0338), NSF/ANSI 61

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