Caltech QC Balcony System



Caltech QC Balcony PMMA System is a fast curing, fully reinforced waterproofing system for use beneath coverings and in buried and inverted build-ups for walkways, balconies and terraces.

The totally cold applied, solvent free, elastomeric system was developed to allow more choice in design by allowing alternative and traditional coverings with or without insulation to be incorporated above the waterproofing layer. The system incorporates an ETA certified waterproofing membrane and is available in standard and heavy duty variants.

The system will cure within 30-40 minutes per coat.

alumasc roofing brochure and samples

Key Features & Applications

fast curing, cold applied liquid waterproofing system for balconies

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