• Suitable for a wide range of timbers and wood derivatives
• Reaction to Fire Performance - Class B s1 d0 (EN 13501-1)
• Thickness of 10mm or greater 
• Density equal to or greater than 390kg/m³ 
• Air gap of up to 40mm
• European Technical Assessment - ETA 15/0424 2019
• Perfectly (clear) transparent
• Easy application by brush, roller or spray
• High transparency, with semi matt wax Aithon F3 finish coat vanish 
• For use on interior projects
• To maintain the compatible performance only Aithon F3 varnish should be applied to PV33. The Aithon F3 varnish should always be used over the Aithon PV33 once fully cured to protect the system. Click on the data sheet below for further details on application loadings, site conditions and drying times. As with all timber systems a small trial is recommend before full application. 
• Available in 4kg and 20kg 
  

Data Sheet: Aithon PV33 Technical Data Sheet

Video Link: Aithon PV33 Timber Fire Protection


Can we be of help?

Understanding your requirement is important: 

Reaction to Fire - deals with the initial stages of a fire. 

Reaction to Fire tests are used to evaluate the contribution of a material and building elements to fire growth. How will the timber/wood react in the case of fire? Understanding your requirement is important and guidance should be sought from Approved Document B of the Building Regulations.

European Classifications:
A1 / A2 - Non-combustible materials
B – Combustible materials with very limited contribution to fire
C - Combustible materials with limited contribution to fire
D - Combustible materials with medium contribution to fire
E - Combustible materials with high contribution to fire
F - Combustible materials which are easily flammable

European testing also looks into smoke emission level and flaming droplets which can have major impacts on fire spread.
s1, s2, s3 [m2/sec2] deals with smoke intensity
s1 - Speed of emissions absent or weak
s2 - Speed of emissions of average intensity
s3 - Speed of emissions of high intensity
d0, d1, d2 = description of burning droplets
d0 - No dripping
d1 - Slow dripping
d2 – high dripping  

United Kingdom Classifications

Class 1 is a classification defined by BS476 Pt 7 – Surface spread of Flame. This test measures the distance and time a flame will spread across a surface. 
Class 0 which is a classification defined by BS476 Pt 6 - Fire Propagation test measuring the amount of heat the surface is giving off during the fire. 

Note:

Periods of fire resistance are often confused with the above reaction to fire testing. However, the testing is very different to achieve. Please click on the following link for period of fire resistance using Aithon PV33/60

Link: Aithon PV33/60 - Up to 60 minutes Fire Resistance

Please call our technical team on 02476 422200 should you require further assistance. 

All orders are usually despatched within 24 hours of receiving cleared payment (Mon–Fri).

The above information is based on current test data, health and safety information and application instructions supplied by the manufacturer of the products. It is supplied for guidance and to the best of our knowledge is true and accurate. Customers should satisfy themselves to the suitability of the products in its intended use and no guarantee is given or implied as the conditions of actual use are beyond our control. If in doubt the customer should consult the designer of the project or the local building control. We would recommend that intumescent coatings are carried out by an approved applicator. 

Fire Stopping Shop, disclaim any liability for loss, damage or other expense which may arise from the use of this information, data or products referred to and reserve the right to amend or change any details without notice. This statement does not affect your statuary rights.