Hensel Hensotherm 820 KS is a thin-film water-based fire protection coating for interior concrete. It improves the fire-resistance time of pre-stressed concrete hollow ceilings up to 120 minutes, reinforced concrete beams and supports up to 150 minutes, and concrete flat slab ceilings and reinforced concrete ribbed slab ceilings up to 240 minutes.

In the event of fire, Hensel Hensotherm 820 KS forms a heat-insulating barrier of carbon foam and thus prevents the concrete structural elements from heating up and the concrete from flaking off the steel reinforcement – patented under European Patent No. 2686391. Hensotherm 820 KS greatly delays the build-up of heat in concrete. At temperatures over 330°C, concrete and steel reinforcements expand at different rates.

It is tested in compliance with the European standard EN 13381-3:2015, analogous to prEN 13381-3:2012, and is approved to Warringtonfire EWCL Certificate No. ME 5119.

Hensel Hensotherm 820 KS is easy to use, puts no load on the surrounding structure and is maintenance free. 

This product is a 'Hensel Green Product' with low VOC (< 6g/l), an A+ VOC emission class, LEED confirmation and is AgBB tested. It is a product very well suited for Minergie-(A-/P-) Eco low energy consumption buildings and corresponds to Priority 1 of Eco-BKP.

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• Features & Benefits
• Areas Of Application
• Approvals/Certifications
• Suspensions/Installations
• Product Features
• Notes

Features & Benefits

   
• Thin-film water-based fire protection coating for interior concrete
• Improves the fire-resistance time of pre-stressed concrete hollow ceilings up to 120 minutes, reinforced concrete beams and supports up to 150 minutes, and concrete flat slab ceilings and reinforced concrete ribbed slab ceilings up to 240 minutes
• Forms a heat-insulating carbon foam barrier in the event of fire - prevents concrete structural elements from heating up and flaking off the steel reinforcement – European Patent No. 2686391
• Greatly delays the build-up of heat in concrete
• Tested in compliance with the European standard EN 13381-3:2015, analogous to prEN 13381-3:2012
• Warringtonfire EWCL Certificate No. ME 5119
• Very well suited for Minergie-(A-/P-) Eco / Corresponds to Priority 1 of Eco-BKP
• Easy to process, no loads on surrounding structure, maintenance free
• External and in-house monitoring / building material approval no. Z-19.11-2196
• Low VOC < 6g/l, A+ VOC emission class, LEED confirmation, AgBB tested
• Apply over Hensel Beton-Carbonsperre to prevent contamination and water penetration

Areas Of Application

• Hensotherm 820 KS is a single component thin-film water-based fire protection coating for applications in dry indoor rooms
  • The fire resistance duration can be extended up to 240 minutes on flat concrete ceilings/concrete walls (Warringtonfire summary letter reference: CT/345425 Issue 3)
  • The fire resistance duration can be extended up to 150 minutes on concrete beams/concrete columns (Warringtonfire summary letter reference: CT/339816 Issue 2)
  • The fire resistance duration of hollow concrete slabs can be improved up to 120 minutes (2012-Efectis-R0556 [Rev1])
• Also possible on request are ribbed ceiling upgrades with an assessment report
• It is recommended that you consult with the responsible planning authority or architect before installing the fire protection system
• On request, a project based guide can be drawn up that serves as a basis for the approval of individual cases - Please contact our Technical Department on 0113 2455450 (option 2) or send a message to [email protected] for details
• The ambient conditions during the application must be documented in a report

Applications:

Approvals/Certifications

• Warringtonfire CT/345425 Issue 3 + CT/339816 Issue 2, Warringtonfire EWCL Certificate No. ME 5119
• Efectis Nederland B.V. | Report: 2012-Efectis-R0556 [Rev1] 2)
• LEED confirmation
• Very well suited for Minergie-(A-/P-) Eco / Correspond to priority 1 of Eco-BKP
• Building material approval no. Z-19.11-2196
• VKF approval no. 27213 +27215
• European Patent No. 2686391
• European patent protection / signatories: AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LI, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR

Suspensions/Installations

• The installation of suspensions, threaded rods, bolts etc. is possible up to a diameter of ≤ 20mm
• Other supporting points may not exceed a diameter of ≤ 25mm
• If 1 suspension/installation component piece per m² is not exceeded, compensation measures are not necessary and possible heat penetration in the event of fire is negligible

Product Features

• Pseudoplastic, non-hygroscopic, intumescent, fire-resistant coating
• Greatly delays the build-up of heat in concrete. At temperatures over 330°C, concrete and steel reinforcements expand at different rates
• Prevents concrete from flaking off. The product complies with the requirements under DIBt (October 2010) and AgBB (June 2012)
• Water-based system
• Free of APEO (alkyl phenol ethoxylate), halogens, and borates
• No fibre or other particulate emissions
• VOC emissions class A+
• No loads on the surrounding structure, space saving, no headroom loss
• Only thin coating thicknesses are required: 0.42–1.7mm (Exova), 1.5–3.5mm (Efectis)
• Easy to process, maintenance free
• Under the optimal conditions, a wet film thickness up to 1,500µm thick can be applied in the one operation
• Colour: White (approx. RAL 9010)

Notes

• For Professional Use Only
• Hensel Beton-Carbonsperre prevents contamination and water penetration
• Beton-Carbonsperre must be fully dry before applying Hensel Hensotherm 820 KS - subject to a positive fingernail test
• Under the optimal conditions, a wet film thickness up to 1,500µm thick can be applied in one operation
• Hensel Hensotop WB top coat offers the possibility of coloured design and protection against moisture - it should be applied when surfaces are exposed to environmental influences
  • Do not apply the top coat before Hensotherm 820 KS is fully dried. At the earliest after 24 hours and after a positive fingernail test

IMPORTANT FIRE PRODUCTS NOTICE: The information displayed on this website should be used as a guide ONLY and our Technical Department should be contacted to obtain a tailored specification and any advice necessary before you place an order for fire protection products. Fire protection products are non-returnable except in accordance with Condition 8 of the Terms and Conditions and should be applied only by an individual with the necessary expertise and experience. We will not be held liable for any resulting damage to property, human life or monetary costs incurred due to the incorrect specification you have prepared or use of fire protection products caused by your negligence, including your failure to have contacted us to obtain the relevant advice/specification.