Flat Concrete Roofs

For a seamless maintenance free solution on flat concrete roofs we have a four coat system.

PRIMER
Alchimica have a variety of primers to suit the substrate.

• Weak screed/ green concrete/ metal
AquaDUR
• Concrete slab
Geodesmo 50
• IBR/Corrugated sheeting
Microsealer 50
(which acts as a primer and rust inhibitor)

WaterproofingHYPERDESMO® HAA is a simple and seamless system for waterproofing and concrete protection. It is a one component, low viscosity, polyurethane fluid which cures with the humidity to produce a highly elastic membrane with strong adhesion, applied in two coats.

TOP COAT
Top Coat is recommended. This makes the surface trafficable, easy to clean and UV stable. Trafficable ADYE and non trafficable A500.

FEATURES AND BENEFITS
• Excellent Adhesion on almost any surface,
• Very Good Weather and UV Resistance,
• Very Good Thermal Resistance,
• 82% solar reflectance when topcoat is white,
• Very Good Mechanical Properties and chemical resistance,
• Water vapor transmission

 

Description

Flat Concrete Roof

PRODUCTS

Geodesmo-50 is a one component, polyurethane based primer suitable for all substrates. It can be used successfully on both porous or non- porous substrates.

It is characterised by its very low viscosity and balanced curing speed which result in excellent wetting, impregnation and paint-over time on all substrates, whether of high, low or no porosity (e.g. glass and metals). Additionally, it can be effectively used on both dry and wet concrete, even green concrete, not only as primer but also as a low-cost sealing solution, increasing, thus, the durability of the substrate.

Recommended for:
• Humid, damp or wet concrete,
• non-porous substrates Also, for use as concrete sealer.

Features and Benefits:
• One component.
• Of low viscosity.
• Easily applied, even on wet concrete.
• Excellent wetting, impregnation and paint-over time.
• Elastic.
• Many pigment pastes available. A low-cost solution for concrete sealing & protection.

HYPERDESMO®-CLASSIC is a simple and economic solution for waterproofing and protection. It is a one component, low viscosity, polyurethane fluid. t is based on pure elastomeric hydrophobic polyurethane resin plus special inorganic fillers, which result in excellent mechanical, chemical, thermal, UV and natural element resistance properties.

Recommended for:
• Gypsum and cement boards,
• tiles (under),
• bathrooms,
• roofs,
• light roofing made of metal or fibrous cement,
• asphalt membranes.

Features and Benefits:
• No thinning is required but SOLVENT-01 may be used.
• Excellent weather and UV resistance. The white colour reflects much of the solar energy and so reduces the internal temperature of buildings considerably.
• Excellent thermal resistance, the product never turns soft. Max service temperature 80 oC, max shock temperature 200 oC.
• Resistance in the cold: The film remains elastic even down to -40 oC.
• Excellent mechanical properties. • Good chemical resistance.
• Non-toxic after full cure.
• Water vapor transmission: The film breathes so there is no accumulation of humidity under the coat

HYPERDESMO®-A500 is a fully aliphatic, one component, polyurethane fluid. Upon curing it produces a tough but highly elastic non-yellowing membrane. It contains pigments and special inorganic fillers which result in excellent mechanical, chemical, thermal, UV and natural element resistance properties. Ιt is used as a top-coat to the HYPERDESMO® System, offering increased UV resistance and colour protection.

Recommended for:
Top-coating of the HYPERDESMO® System (for colour protection)

Features and Benefits:
• Excellent weather and UV resistance, no yellowing (it is fully aliphatic).
• Excellent mechanical properties, high elasticity, tensile and tear strength.
• Highly hydrophobic.
• Excellent chemical and hydrolysis resistance.

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