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Liquasil Ultra Rapid PeMA

Verified by manufacturer 3 months ago

Liquasil Ltd Third party certifications:
  • BBA Agrément Certificate

    BBA Agrément Certificate

    Certificate type

A unique, seamless, low-odour waterproofing system for flat roofs.

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+44 (0)1217 095352


Designed specifically to cope with UK weather conditions and temperature extremes. More suited to new or high-profile flat roof installations, Liquasil Ultra Rapid is compatible with most timber, insulated composite decks, concrete and asphalt substrates, providing a strong, waterproof finish that will last many years. Liquasil systems are typically installed on commercial and industrial premises.


A unique, seamless, low-odour formulation providing instant waterproofing for flat roofs that can be installed in as little as one day on smaller installations. 

Liquasil Ultra Rapid flat roof waterproofing system comprises an initial polymer embedment coat, into which is laid a 450 g/m² chopped strand emulsion based mat containing strands of glass fibre.

The emulsion within the chopped strand mat dissolves within seconds to allow the free-form fibres to be moulded around the most complex roof details with relative ease. The embedment coat can be set to cure in as little as 30 minutes, after which time the roof is already waterproof.

Being low odour, the system can be used on occupied buildings with air handling equipment present without filling the building with noxious fumes.

The finished roof is extremely tough and very flexible, unaffected by sunlight and other weathering conditions.

Features and benefits:

  • Seamless – no joints to leak.
  • Waterproof.
  • UV Resistant.
  • Bonds to most roof substrates.
  • Fire rated to BS 476-3 EXT F AA and EN 1187 B Roof (t4).
  • Made in the UK.
  • Single point, 25 year guarantee.
  • Faster install times reduce labour costs.
  • The standard base coat colour is light grey, with the top coat being charcoal grey.
  • Liquasil Ultra Rapid contains no fillers (like ash for example) and has a very low solvent content, meaning that more of the applied product stays on the roof, rather than evaporating.

General information












25 year

The Ultra Rapid flat roof waterproofing system is covered by Liquasil's 25 year waterproofing guarantee as standard. Consult the manufacturer for further details.


Pr_35_31_68_64 Polyurethane (PUR) waterproof coatingsPrimary


J31/353 Waterproof coating

Specification data - Polyurethane (PUR) waterproof coatings

Third-party certification

BBA certificate.



Environmental information

Contains Red List materials


Country of material origin

United Kingdom

Country of product manufacture

United Kingdom

Recycled content

0 %


Liquasil Ultra Rapid PeMA installation instructions

Liquasil Ultra Rapid PeMA installation instructions

Third party certifications

BBA Agrément Certificate

BBA Agrément Certificate

BBA Certificate - Liquasil Ultra Rapid

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