Flomasta External Leak Sealer 50g (8487J)

£ 3.89INC VAT

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Flomasta External Leak Sealer 50g (8487J)

Single-part silicone leak sealer for all types of joints and fittings. Ideal for temporary repairs. Cures in 1 hour. Adheres to most wet or dry surfaces. Does not shrink and remains flexible, allowing seal to be undone.

  • 1 Year Guarantee
  • Ready to Use
  • Cures in 1 Hour
  • Resealable Tube

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View all: Flomasta Sealers & Compounds

£3.89INC VAT (£77.80/Kg)

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Rated 5 out of 5 by from Seals well as expected Used on a new leaking soil stack assembly. I took it apart to apply the sealant. I also have used on a leaking gutter joint. Can be put on external joints or used when assembling. Either way it works really well and the joint can also be taken apart if required
Date published: 2022-09-14
Rated 5 out of 5 by from Hose pipe connection Found a leak which was due to the main pipe connection thread being damaged at back of washing machine. This product did the trick to seal and avoided the expense of a plumber.
Date published: 2022-09-13
Rated 5 out of 5 by from Brilliant I wish I had used this on day one of my basin waste project. No more drips. Waste and P trap better than ever. You only learn about the best way of doing things by bitter experience !
Date published: 2022-07-28
Rated 5 out of 5 by from External Leak Did the trick on a leaking soil pipe. Easy to apply and neat result
Date published: 2022-07-18
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Will it seal a petrol tank leak.

I have a plug in a two stroke engine petrol tank and the manufaturers sealant has seteriorated and needs redoing. Is this compatible with sealing petrol?
Asked by: EdwinM
Hello, Thank you for your enquiry. The supplier has told us that this has not been tested for petrol so cannot advise. Thank you for using Q&A.
Answered by: Screwfix778
Date published: 2022-07-09

Bonding HDPE

Will this bond a rubber bung to HDPE plastic
Asked by: Westy999
The product should grab to both surfaces but if the purpose is to give a pressure seal it may not work as expected. The product is essentially a handy reusable equivalent to silicone sealant that would normally be purchased in larger volume and be dispensed from a tube with a mastic gun.
Answered by: Water Treatment Expert
Date published: 2022-07-28

Does this work on copper pipes

I have a pinhole leak on a copper pipe in a very inaccessible area
Asked by: DIYer0
The product may work - no guarantee can be given.
Answered by: Water Treatment Expert
Date published: 2022-07-04

Is this suitable for use in a aquarium

Asked by: Janste1955
This is a plumbing product so using it in an aquarium is not it’s intended use. Furthermore it’s ‘acetic acid cure’ and gives off a vinegar smell as it cures. We would not recommend it for this application.
Answered by: Water Treatment Expert
Date published: 2022-03-26

Radiator

Can this be used on a small leak on copper pipe soldered coupler part which has pressure going into radiator
Asked by: Nathan1988
It might work - this is essentially gasket material - so it might not withstand the pressure - if it doesn’t work our (internal) leak sealer is more likely to stop what you describe as a capillary leak.
Answered by: Water Treatment Expert
Date published: 2022-02-17
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Specification
Brand Flomasta
Label Info 1: Signal Word Danger
Label Info 2: Hazard Statements H315 Causes skin irritation.H318 Causes serious eye damage.
Label Info 3: Precautionary Statements P102 Keep out of reach of children.P280 Wear protective gloves/protective clothing/eye protection/face protection.P305 + P351 + P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.P310 Immediately call a POISON CENTRE/doctor/ …P332 + P313 If skin irritation occurs: Get medical advice/ attention.P501 Dispose of contents/container to …P264 Wash … thoroughly after handling.P302 + P352 IF ON SKIN: Wash with plenty of water/…P321 Specific treatment (see … on this label).P362 + P364 Take off contaminated clothing and wash it before reuse.
Label Info 5: Hazardous Chemical Content Methylsilanetriyl triacetate
Manufacturer Guarantee 1 Year Guarantee
Pack Size 1
Pieces in Pack/Case 1
Product Type External Leak Sealer
Volume 50 g

Downloads

Safety Data Sheet (COSHH)