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What does the term “asbestos encapsulation” refer to?

Are you unsure what the term encapsulation refers to? It’s a phrase that refers to the application of an impermeable substance to an
asbestos-containing material (ACM) in order to prevent asbestos fibres from being released.


“Encapsulation can be described as the application of an impervious material that is fastened over or around an ACM and is designed to
prevent the release of fibres under anticipated circumstances, such as vibration, impact, and age deterioration, for the purposes of this
advice. Encapsulation should keep the original asbestos application’s beneficial qualities while also keeping it safe.” GN010-V0715-
Encapsulation of Asbestos-Containing Materials, ARCA, 2015.

Why would you want to encapsulate asbestos instead of removing it?

Encapsulation is only acceptable if the ACM is in excellent condition, and it is critical to accomplish effective encapsulation, which means
no water penetration. To eliminate the need for replacement, this procedure should keep the original asbestos application (e.g. fire

Encapsulation can take many forms, but it primarily refers to the safe management and control of the substance in order to prevent it from
deteriorating. In certain situations, removing the substance is unnecessary, and doing so may increase the risk of fibre release.

Encapsulation’s benefits

Cost is a common consideration. Encapsulating is a short-term option that requires less specialised labour and does not incur the cost of
trash disposal in a landfill. Overall, it will cost less up front and create less interruption, thus it may be desirable in the workplace if firms
must remain fully functioning or do not have a huge budget.

Encapsulation’s drawbacks

The disadvantage of encapsulation is that it must be inspected by a surveyor on a regular basis to verify that the condition has not
deteriorated, and removal may ultimately be required, thus overall expenses may be higher over time. If anything unexpected happens
after encapsulation, such as a roof leak causing asbestos-containing ceiling tiles to be destroyed, you may face additional expenditures in
the future due to the necessity for emergency intervention.

Don’t know what to do?

Don’t worry, our specialists will always be able to advise you on the best course of action for your specific circumstance and evaluate the
benefits and drawbacks. When both choices are being evaluated, we can additionally give two quotations (where applicable).

Encapsulation examples

• Create a physical barrier around the asbestos by using board or sheeting.After that, it would be painted with ordinary paint (Mechanical

• For insulation, boards, and sprayed coatings, a liquid encapsulant is applied in many layers (such as ET150 paint).To provide impact
resistance, a reinforcing membrane such as calico fabric is sometimes used. If left alone, this can offer up to 20 years of life. (Elastometric
Coating with a High Build)

• Epoxy resins based on water are utilised to give excellent impact resistance and a cleanable surface.

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