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Kimbo Fire Resistant Coating, FG WL 90 SB, Netherlands made, 20L

Kimbo Fire Resistant Coating, FG WL 90 SB, Netherlands made, 20L

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Intumescent coatings react under the influence of great heat release like fire. Because of the heat the coating expands many times the original layer thickness producing an insulating carbon char. The carbon char will protect the steel from the effects of fire. In addition to the fire resistant function, Kimbo FB intumescent coatings will provide a smooth, aesthetic satisfying finish, which is durable and easy to maintain. The steel is fully protected against fire, with a system that has all the decorative qualities of a conventional paint.

The thin intumescent coating layer enables architects and designers to use the steel framework as an integral part of the overall design like in new airports, shopping malls, hotels and sport stadiums. This is one of the main reasons why intumescent coatings are increasingly preferred over other types of passive fire protection such as mineral sprays and boards.

Kimbo FB WL 90 SB EXTERIOR is an intumescent coating for indoor and outdoor application. It is developed for on-site and off-site application. FB WL 90 SB can be exposed for 9 months in outdoor situations without a topcoat.


Kimbo FB WL 90 SB EXTERIOR should be applied when air humidity is below 85% and surface temperature no less than 5°C. Before use, the product must be stirred thoroughly, in order to achieve a uniform dispersion.

Best results will be obtained when Kimbo FB WL 90 SB EXTERIOR is applied by means of airless spray equipment. Using a brush or roller will result in a textured finish.

Use an airless spray pump with a minimum capacity of producing a pressure of at least 200 bars. A tip size of 0.015”-0.023” inch with an angle between 30-50° is preferred. A 30 mesh/ 500 m internal

filter is recommended.

The layer thickness that needs to be applied in order to achieve the required fire resistance depends a.o. on temperature and section factor. To avoid a superfluous wet film thickness special attention should be given to internal angles and corners.

The duration of the drying process depends on several conditions like method of application, film thickness, temperature and air humidity. Generally, with airless spray application at 20°C a 400 um DFT layer will be touch dry after one hour and hardened after 24 hours (20°C/50% RH).

With brush a maximum DFT of 400 um and with roller per a maximum of 250 m can be achieved per layer. A subsequent layer can be applied after a minimum of 2 hours drying at 20°C and 50% RH.

Please note that exceeding the maximum indicated film thickness could result in cracks when drying. Kimbo FB WL 90 SB EXTERIOR can be thinned up to 10% with HCAVERDUNNER EXT. Synthetic thinner can be used to clean material. Good ventilation is highly recommended.


Although for application at C1 conditions (ISO 12944) no topcoat is required, it is possible to use 50 μm HCA TOPCOAT or HCA TOPCOAT EXT. For C2 conditions 75 um DFT of Kimbo TOPCOAT EXT or 50 um DFT of H TOPCOAT 2UA EXT is required. For C3 and C4 conditions 2 layers of 75 um HCA

TOPCOAT EXT or 2 layers of 50 um HCA TOPCOAT 2UA EXT are required. Depending on the circumstances, HCA WL 90 SB EXT can be achieved with topcoat after 16 hours drying. HCA

TOPCOATS are available in almost every RAL colour. For specific colours contact the Export department of Kimbo International Holding Limited


BS 476:part 20, EN 1366, NEN 1366-1


Colour White

Storage and shelf life 1 year in original, unopened package. Store frost-free.

Relative humidity < 85%

Packaging 26 kg (20 L)

Shipping weight 27.5 kg

Transport UN 1263 Paint


Specific gravity 1.3 kg/l

Volume solids (ASTM D2697) 73 ± 3%

VOC (EU Directive 2004/42/EC) < 400 g/l

Flash point 25°C

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