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Sealants

Permabond F201 Toughened, flexible, anaerobic sealant

Anaerobic sealants are characteristically very rigid, hard adhesives which work well in compression, torsion and shear but are notoriously brittle and unsuitable in applications where there could be peel or cleavage forces. When bonding dissimilar metals where differential expansion and contraction could be an issue (especially over a broad temperature range or where ther...

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Anaerobic Sealant Safe for Use with Pure Oxygen

Permabond’s MH052 is an anaerobic sealant safe for use with pure oxygen on threaded pipework, and has BAM approval for use on threaded pipework systems. Most anaerobic sealants have warnings on their datasheets against their use in contact with pure oxygen. But not this one! It is approved for use with pure oxygen up to 10 bar/60°C (145 psi/140°F) and does not exhibi...

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Pipe Size Diameter and Thread Sealant Use

Permabond LH050 general purpose anaerobic pipe sealant is for use on metal pipe.   Permabond LH050  is classified by Underwriters Laboratories Inc.® for use in devices handling gasoline, petroleum oils, and natural gas (pressure not over 300 psig) not exceeding 2 in. pipe size; propane and butane not exceeding 1 in. pipe size.  Permabond LH050 is clas...

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Anaerobics are for metal only – so why list plastic compatibility?

If anaerobic sealants are only for use on metal why is Permabond LH056 a CPVC Compatible Anaerobic Sealant? The short answer is that Permabond LH056 is a designed for use as a metal pipe sealant only – if Permabond LH056 is used on metal pipe work in a fire protection system that also contains CPVC, the CPVC will not be adversely affected. There are various ways o...

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Dispensing Anaerobic Adhesives & Sealants

Manual dispensing from the bottle: When first opened the nozzle will need to be cut to the right diameter to allow dispensing. You can always trim more off the nozzle so err on the side of caution, otherwise you could end up with it gushing out and not be able to backtrack. Use a sharp Stanley knife and do it on a chopping board or protected surface. Blocked nozzle: Thi...

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Anaerobic Adhesive for Sealing Bullets

METHODS OF BULLET SEALING, PRIMER SEALING AND CRIMP SEALING Bullets (or munitions) comprise several components including the actual bullet, casing, primer or pin and of course the explosive gun powder housed inside.  Traditional methods of bullet sealing include use of a bitumous compound or lacquer.  These are a fairly low-cost method of bullet sealing but are fairl...

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Permabond Sealant Approved for use in Oxygen Delivery Systems

Permabond® Engineering Adhesives MH052 has BAM approval for use with gaseous oxygen up to 10 bar (145 psi) and 60°C (140°F). Standard anaerobic sealants cannot be used for oxygen-rich systems due to instability, which could cause fire or explosions.  MH052 is a unique formulation which is stable in oxygen rich environments providing a safe means to seal threaded j...

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