Heldite Joining Compound

£17.88

Inc. VAT: £21.46

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Heldite Jointing Compound is a pipe and thread sealant designed to effectively seal bolted, flanged or screwed joins and prevent leakage. This semi-permanent liquid compound is used throughout all engineering industries and in plumbing and heating, provided it isn’t in contact with potable water.

This is a non-abrasive joint sealant, meaning that it has no effect on any metal, rubber or any other materials that it is used on. It is available either in a 250ml tin with brush applicator integrated into the cap, or a small 7ml single use bottle that can be thrown away after use.

Features of the Heldite Thread Sealant:

Spreading capacity: 35sq. ft per 250ml tin
Waterproof and anti-corrosive
Unaffected between temperatures of -40°C to +350°C
Available in 250ml tin & 7ml bottle
Suitable for oils, fuels, hydraulic fluids, water, gases & coolants

4.0

12 Reviews

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James H.

Verified Buyer • 12 Mar 2026

Excellent product — exactly as described.

Used this on a JCB 3CX turbo downpipe. Fits perfectly, holds up very well to heat cycles. Much better than the fibreglass wrap I used previously — no itching, easier to handle. Will definitely be ordering again.

Mark T.

Verified Buyer • 28 Feb 2026

Great value, fast delivery.

Good quality wrap for the price. Arrived next day which was great. The 50mm width covered my headers nicely with a bit of overlap. Holds up well after a few heat cycles.

S. Patel

Verified Buyer • 14 Jan 2026

Decent product, application tricky without soaking first.

Wrap itself is good quality but I'd strongly advise soaking in water for 10–15 mins before wrapping — it makes it much more pliable and easier to apply. Didn't do this first time and it was frustrating. Product is fine though, no complaints.