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White tube with black cap, 50ml thread sealant paste

Loctite

Loctite 59231 Thread Sealant Tape 50ml

SKU CH-55GW-N1REW

Pipe thread sealant in a 50 mL tube hardens in 24 hours and withstands 10,000 psi gas pressure from -65 to 400 °F

  • Product typeCloth Tape
  • Seals pipe threads reliably with 10000 psi gas pressure rating
  • Medium-strength dimethacrylate ester formula begins to harden in 24 hours
  • Performs across wide temperature range from -65 to 400 degrees Fahrenheit
  • 50 ml tube provides convenient application at 72 degrees Fahrenheit
  • White colour and 1.21 specific gravity allow easy visual inspection

Loctite 59231 Pipe Thread Sealant

Loctite 59231 is a medium-strength anaerobic pipe thread sealant supplied in a 50mL tube. It cures between metal threads to form a durable seal that resists leakage and loosening. The off-white dimethacrylate ester compound is designed for industrial and maintenance piping systems. It begins to harden in 24 hours at room temperature.

Suitable for metal pipe threads up to 10000 psi

This sealant suits technicians sealing metal pipe threads carrying gases or fluids up to 10000 psi gas pressure. It performs across a temperature range of -65 to 400 Degrees F. It is not for buyers needing instant curing or sealants for plastic piping. It is also unsuitable for applications requiring low-strength disassembly without heat.

Medium anaerobic cure with 350000cP viscosity

The single specification that decides fit is the medium anaerobic cure profile combined with a viscosity of 350000cP. This paste-like consistency prevents migration during assembly and ensures gap filling on coarse threads. Full cure develops over 24 hours at 72 Degrees F. Verify substrate compatibility and cure speed requirements before selection.

How it compares

Measured against everything we stock in Office, Masking & Packing Tape, at today’s prices. Recalculated every night.

Price $14.99
Cheaper than about 73% of the 3,148 comparable items (median $29.99).

Specifications

Product
Brand nameLoctite
Product typeCloth Tape

Questions about this item

Which pipe thread sizes can I seal with the 50 ml tube of Loctite 59231?

The 50 ml tube of Loctite 59231 is formulated for pipe thread sealing and can handle gas pressures up to 10,000 psi once cured.

Will Loctite 59231 withstand the same temperature extremes as the older PTFE tape I have been using?

Loctite 59231 remains effective from -65 degrees to 400 degrees F, a wider range than standard PTFE tape, and resists vibration loosening.

How can I confirm the Loctite 59231 seal has fully cured after assembly?

The sealant begins to harden after 24 hours at 72 degrees F; full cure is reached when the joint holds 10,000 psi gas pressure without leakage.

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