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LOCTITE 55 Pipe Thread Sealant, Non Curing Thread Sealant for Plumbing Pipes and Fittings, Reliable Fast Action Pipe Sealant for Metal and Plastic, 50m

LOCTITE 55 Pipe Thread Sealant, Non Curing Thread Sealant for Plumbing Pipes and Fittings, Reliable Fast Action Pipe Sealant for Metal and Plastic, 50m

Q: Can this be used as spindle packing for a leaky valve stem

I don't think you would have much success packing a valve stem, it's not designed for this purpose. Valve stem packing needs to retain pressure on the stem and this is why hemp, graphite (for high temperature applications) and PTFE reinforced with glass fibre are all used. Some valve stem seals are a fibrous type of compressible washer. If you use this Loctite product in this way it will leak.

Q: Does this stuff have an expiry date?

I would say not as it seems to me to be PTFE tape except in thread or rope form and PTFE doesnt have any expiry date as far as I know. I bought this along with a high temp gasket maker and the gasket maker seems to be far better.

Q: How do you apply it to a tap or other connector ?

You just wrap it around the threaded part in a zig zag motion so it crosses all the threads ...about 7 times..don't just follow the threads ..it won't work that way ...look on YouTube for the best explanation...it is great stuff .I use it rather than PTFE tape ,it's much better and stops leaks even if you have to turn the tap back a quarter turn to set it vertical ...was the best plumbing tape I,ve bought ...never bother with PTFE tape anymore .I,ve used it on dripping garden taps ,and it works first time

Q: Would this work as a gasket seal on a water heater? It's all I can find that's water safe and up to the temperature.

It’s only for use as a thread sealant. Not really recommended for use as a gasket material. If you mean a gasket in the traditional sense ie between 2 flat surfaces the. High temperature materials are available or even ‘liquid’ gasket such as Hermotite. Be very careful for using on a water heater if high temperature and pressures are involved. If you don’t feel confident or competent please consult a professional.

Product ID: 49905812

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Details

Material
Leather
Brand
Loctite
Style
Compact
Item weight
0.05 Kilograms
Item dimensions L x W x H
9.8 x 5.4 x

🔥Withstands up to 130°C heat

⏱️Instant pressure-tight seal

🛠️Fits metal & plastic pipes

Description

🛠️ Lock it tight, seal it right—Loctite55 means no leaks, no stress!

SEAL IN SECONDS - No drying time—immediate full-pressure protection for zero downtime.
LONG LASTING SUPPLY - Generous 50m roll ensures you’re always ready for any plumbing challenge.
EFFORTLESS APPLICATION - Compact container with integrated cutter for fast, mess-free sealing on the go.
UNIVERSAL COMPATIBILITY - Approved for both metal and plastic pipes, including gas and drinking water systems.
HEAT RESISTANT RELIABILITY - Maintains integrity in extreme conditions up to 130°C—built for demanding environments.

Loctite55 Pipe Thread Sealant is a high-performance, non-curing sealing cord designed for quick, reliable sealing of metal and plastic pipe threads. It offers immediate pressure resistance without drying time, withstands temperatures up to 130°C, and is approved for use in gas and drinking water systems. Packaged in a compact container with an integrated cutter, the 50m roll ensures efficient, mess-free application for professional-grade plumbing.

Specifications

Manufacturer	Loctite
Part Number	483283
Product Dimensions	9.8 x 5.4 x 16.5 cm; 51 g
Item model number	483283
Size	50m
Colour	White
Style	Compact
Material	Leather
Power Source	crank
Item Package Quantity	1
Number of Pieces	1
Measurement System	Metric
Usage	General Purpose ,metal
Included Components	1
Batteries included?	No
Batteries Required?	No
Item Weight	51 g

Have a Question? See What Others Asked

Can this be used as spindle packing for a leaky valve stem

Does this stuff have an expiry date?

How do you apply it to a tap or other connector ?

Would this work as a gasket seal on a water heater? It's all I can find that's water safe and up to the temperature.

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The MOLLE sheath is of exceptional quality. Very happy with my purchase.

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Fantastic experience overall. Will recommend to friends and family.

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