Water-borne intumescent coating for concrete fire resistance
Enjoy advantages of our exclusive melamine-free technology for concrete fire protection
Unlike most of the existing intumescent coating for concrete fire resistance, AITHON A90H uses our proprietary melamine-free technology to offer peak performance of concrete fire protection combined with unmatched warranty of healthy environment.
AITHON A90H has been tested and assessed rigorously in accordance with European Standards (BS) EN 13381-3 and (BS) EN 13501-2 by leading fire testing laboratories such as BRE (U.K.), CSTB (France), APPLUS (Spain), PAVUS (Czech Rep.), FIRES (Slovakia) and Warringtonfire Australia.
Key Features of AITHON A90H
- Experience our melamine-free intumescent coating for concrete fire resistance and protection
- Achieve up to 48mm of equivalent concrete thickness
- Attain impressive R/REI 240 on slabs and load bearing walls
- Reach up to R120 on beams and columns
Advantages of AITHON A90H for Concrete Fire Protection
- Thermal insulation equivalent to 48mm of concrete thickness with just 1.2mm of dry film thickness
- Increases concrete lifetime reducing concrete carbonation up to 78%, through high impermeability to CO2
- In case of fire it prevents spalling, the cracking and delaminating of concrete surface that is dramatically accelerated during a fire. It reduces the concrete cover exposing rebars to fire, and leading to structural collapse
Practical Benefits
In certain buildings, particularly towers, room height is limited. While traditional solutions require thick fire boards or suspended ceilings, AITHON A90H has maximum thickness of 1.2mm that does not reduce the height to the ceiling and does not create additional static load.
What fire resistance can A90H achieve on concrete?
A90H can upgrade concrete structures to approximately 2-3 hours of fire resistance with a coating thickness of around 1.2mm, depending on the specification required.
Easy Application
No need of cleaning
Is Aithon A90H environmentally friendly?
Yes. Being water-borne and low-VOC, it reduces environmental impact compared to solvent-based intumescent coatings.
How is A90H applied?
By trained, approved applicators, using spray, brush or roller techniques depending on the substrate and project specification.
Compatible with repair mortars.
To apply AITHON A90H there is no need to remove technical plants. Thanks to its very low thickness, it is applied behind the plants.
Damage is easily repaired, ensuring long-lasting protection
Stirrups, anchors and other fixing systems, and even dry walls, do not affect the efficiency of AITHON A90H. For detailed specifications contact our technical service.
Aesthetically Pleasing
Keeps concrete pattern visible
⦁ Very low thickness preserve the concrete pattern and structure shape
⦁ Wide range of color finishes available to enhance the visual appeal
Wide range of colour finishes is available too.
Melamine-Free Intumescent Technology
Creating a healthy environment
Melamine free, innovative and exclusive AITHON intumescent coating for concrete fire resistance
- Waterborne with low, Ecolabel-compliant VOC for a healthy living environment
- Air emissions after 28 days are just 0.79 mg/m3, meeting BREEM requirements and achieving Class A+ Air Emission standards.
Frequently Asked Questions
What is AITHON A90H?
AITHON A90H is a water-based intumescent coating developed by Aithon for the fire protection of concrete, steel and masonry structures. It also provides a decorative finish, combining fire protection and aesthetics in a single product.
How much fire resistance does AITHON A90H provide?
AITHON A90H can increase the fire resistance of reinforced and pre-stressed concrete structures up to 4 hours (240 minutes REI), depending on the required certification standard.
Is AITHON A90H suitable for high-humidity environments?
Yes, AITHON A90H does not require a top coat even in high-humidity environments, unlike many traditional intumescent coatings.
Is AITHON A90H environmentally friendly?
Yes, it is a water-borne, low-VOC coating, designed to protect steelwork while minimising environmental impact.
What materials can AITHON A90H be applied to?
AITHON A90H is formulated for reinforced concrete, pre-stressed concrete, steel and masonry structures, and can also act as a carbonation barrier to improve concrete durability.