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LOCTITE 55 Thread Sealing Cord / for Plastic and Metal Threads

SVB item number: 30249
View Ratings (22) Questions (0)
Made in Europe
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LOCTITE 55 Thread Sealing Cord for Plastic and Metal Threads Image 1 of 3 LOCTITE 55 Thread Sealing Cord for Plastic and Metal Threads Image 2 of 3 LOCTITE 55 Thread Sealing Cord for Plastic and Metal Threads Image 3 of 3
Used on a Sadler 35 5
Used on a Nauticat 40
Is in 3 shopping baskets right now, grab yours now!
Has been sold 2 times in the last 7 days
Fast, simple and reliable! LOCTITE 55 thread sealant is universally applicable and suitable for plastic as well as metal. Creates an immediate sealing effect and does not harden. Ideal for gas and water pipes. Product details
only  €25.95
61 | in stock
pcs.
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Available variants

LOCTITE 577 - Thread Sealant / for Metal Threads
LOCTITE 577 - Thread Sealant / for Metal Threads
LOCTITE 577 - Thread Sealant / for Metal Threads
€45.68
only €39.95
VAT inc., ex-works
(€799.00/ l)
To product

At a glance!

Polyamide
Polyamide
by Marco U.
Great for sealing tank filler necks, never again water in the tank!
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by Dario C.
To seal sea cocks and gate valves
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by Michael B.
Easy to use Quantity exactly as stated, fits perfectly with the Trudesign plastic through-hull valves.
Read all product reviews
by Thiéry D.
Alright Practical and compact
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Product data

  • SVB item number 30249
  • EAN 4002872013986
  • Description LOCTITE 55 thread sealing cord
  • Material Polyamide

Product details

Fast, simple and reliable! LOCTITE 55 thread sealant is universally applicable and suitable for plastic as well as metal. Creates an immediate sealing effect and does not harden. Ideal for gas and water pipes.

Further features at a glance
  • Easy to disassemble
  • Max. pipe thread size: 4"
  • Temperature range: -55°C to +149°C
  • Drinking water approval: WRC approval (BS 6920) / 0808533
  • Gas and drinking water approval: DVGW/KTW
  • Container: 150 m

Documents

de-flag Datasheet
PDF (74,58 KB)

Product safety

Contacts

What other SVB customers have to say

100% real reviews

22 customer reviews

4.4 (out of 22 ratings)
5 Stars
(14)
4 Stars
(5)
3 Stars
(1)
2 Stars
(1)
1 Stars
(1)
All reviews Helpful reviews Latest ratings 5
4
3
2
1
Steffen S.
by Steffen S. Flag of Germany 5/12/2026 Variant: 30249 in use on a Artekno Oy - Ohlson 29
Translated automatically
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TruDesign seacocks cannot be sealed
I watched several tutorials on the subject, but unfortunately, I couldn't get my TruDesign seacocks permanently sealed. Perhaps I wound the sealant too neatly or too precisely—it's hard to say.

In any case, it was an enormous amount of work to completely remove and reseal all seven seacocks. For the second attempt, I opted for Sikaflex. Sure, the seal is much harder to undo later, but ultimately, absolute watertightness is my priority. The boat simply has to be reliably watertight.
Axel B.
by Axel B. Flag of Germany 5/6/2026 Verified purchase Variant: 30249
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Nobody needs that
Extremely expensive and very sensitive to use. Simply wrapping the thread around isn't enough for a seal. Instead, you have to wrap it crisscrossing and thickly; then it might work.

A bit of Teflon tape and a dab of Sikaflex achieves the same result. And with Sika, you know it seals.
Our answer
Moin Axel B.,
Sikaflex ist für Gewindedichtungen nicht zu empfehlen. Sollten Sie evt. mal ein Ventil, Borddurchführungen etc. austauschen wollen, bekommen Sie ein mit Sika eingedichtetes Gewinde nie wieder demontiert.
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Comparison

Image of LOCTITE 55 Thread Sealing Cord / for Plastic and Metal Threads
LOCTITE 55 Thread Sealing Cord / for Plastic and Metal Threads
Image of LOCTITE 577 - Thread Sealant / for Metal Threads
LOCTITE 577 - Thread Sealant / for Metal Threads
Availability / Price
only €25 95
VAT inc., ex-works
61 in stock
only €39 95
VAT inc., ex-works
61 in stock
Item no.
30249
30012
Customer ratings
(22)
(19)
Description
LOCTITE 55 thread sealing cord
LOCITE 577 - Thread sealant
Contents
 
50 ml
Material
Polyamide
 
Examples of use
 
Thread

Did you know?

Image of Repairing & sealing boat windows - here's how
Repairing & sealing boat windows - here's how
If your boat windows start to leak, expert help can be costly. Water ingress is not only a nuisance, but in the worst-case scenario it can really end up being a financial burden. Luckily, handy skippers that know how to replace a window seal or even an entire boat window are at an advantage here. And for those less experienced, our guide to repairing boat windows can help and explain the most important steps.

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LOCTITE 55 Thread Sealing Cord / for Plastic and Metal Threads
View Ratings (22) Questions (0)
€25.95
VAT inc., ex-works