Caltech QC Balconies

Typical QC Balcony


Caltech QC High Performance Balcony Systems comprise a range of rapid curing two-component, cold-applied, reinforced PMMA waterproofing solutions available in a wide range of colours and multiple finish options to meet your aesthetic or safety requirements. Caltech QC has a proven track record of more than 20 years and is subject to the highest levels of certification and testing. Our systems are designed for a variety of applications for use across all building sectors in both refurbishment and new-build waterproofing projects.

Key Features & Applications

Fully reinforced waterproofing membrane

    • Caltech QC Balcony System is a unique technology provides the system with exceptional tensile strength and long term resistance to regular and unforeseen movement, cracking and flexural fatigue.

Long term protection

    • The seamless system is resistant to standing and ponding water (hydrolysis) and is designed for buried applications including with cementitious overburden.

Substrate compatibility - including asphalt

    • The system is compatible with virtually all existing substrates.
    • Proven track record in overlaying failed asphalt, avoiding the risks, costs and disruption associated with asphalt removal and reinstatement.

Cold applied and rapid curing – even at low temperatures

    • No risks from hot works
    • Exceptionally rapid cure times minimise access restrictions
    • All year round installation with minimum risk - minimal extension of cure times when applied at 0°C and cures below 0°C

Quick Tip

What other cold-applied options do Alumasc provide?


Euroroof Caltech Liquid Waterproofing is also available. Caltech is a flame-free, single component, self-levelling polyurethane liquid waterproofing solution. Cold applied to form an elastomeric, seamless membrane, Caltech will waterproof virtually any substrate. For more information click here

White House Works, Bold Road, Sutton, St Helens, Merseyside, WA9 4JG