HomeMy WebLinkAboutFIRE RETARDANT COATINGS - 20-00001 - 4300 Woodland Dr - Mechanical New SFRFIRE RETARDANT COATINGS
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Objective: reducing fire propagation times
Protection from fire: where is it required?
Fire reaction
Fire retardant systems
Polyurethane products for interiors
Waterborne coatings for interiors
pag. 3
pag. 4
pag. 6
pag. 7
pag. 9
CONTENTS
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After a fire starts, any reduction in the propagation of flames can be decisive in saving human lives. One of
the purposes of fire retardant coatings is to reduce the rate at which the fire spreads and thereby retard
it. As regards fire protection, most countries have very strict regulations concerning the performance of
fire-resistant and fire-retardant coatings, especially for the treatment of bearing structures, coatings and
wooden works.
Wood exhibits an important aesthetic importance and fire retardant coatings for wood should combine
fire protection with excellent aesthetic results. “Safety performance and Finish performance”. Customers’
requirements are not only regulation-related (compliance with law), but they are also appearance/functional-
related. These are two components that since the design stage have been at the basis of Sayerlack’s progress
towards the realisation and formulation of fire retardant coatings.
When it is mandatory to conform to fire regulations, the architect/designer or authoriser issuer of the
fire certificate may calculate the fire load (quantity of flammable material per square metre and relevant
calorific power) for each room, assessing the class that each construction element falls into, based on
emergency exits, fire fighting systems, or internal permanent safety services.
OBJECTIVE:
REDUCING FIRE PROPAGATION TIMES Protection from fire:
where is it required?
• Public buildings
• Offices/factories
• Clubs, bars, pubs and dance halls
• Banks
• Airports and railway stations
• Hotels and tourist facilities
• Exhibition centres, meeting and fair venues
• Shops
• Schools, colleges, universities and nursery schools
• Auditoriums, theatres, cinemas and museums
• Hospitals
• Gyms and fitness centres
• Churches
• Civil buildings
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FIRE REACTION
M.D. 26/6/84 - M.D. 6/3/92 (UNI 9796) - Ministry of Internal Affairs Italy
Fire reaction - Test UNI 9174
A3) The panel is 50% charred.
B3) The situation is almost unchanged,
the damaged area is minimal and
the flame tends to extinguish.
A2) Without protection, the flame
reaches the wood.B2) The combustion sets off but the
flame propagation speed is greatly
reduced by the fire retardant coating.
A1) The 750 C° heat of the radiant
panel sets the coating film on fire.
B1) Even if only partly damaged, the
reaction that reduces the combustion
speed is evident on the panel.
A) Test start on MDF coated with a
normal polyurethane cycle.
B) Test start on MDF coated with
the TB cycle.
Fire reaction regulations divide coating and panelling related materials, as well as flooring, false ceiling,
furnishing and seating surface materials, into several classes. Italian regulations, one of the strictest in the
EU in terms of fire reaction performance, assigns six classes. They are assigned a fire reaction class, which
ranges from 0 (non-flammable) to 5 (easily flammable). In the event of a fire in a closed place, temperature
reaches very high values. Wooden materials start to release gases that considerably contribute to fire
propagation. Class 1 is the best to protect the material involved in the fire. The Sayerlack Class 1 fire
retardant systems effectively slow down fire spreading time, as they act with several mechanisms at
the same time. For example, an MDF 4 mm thick panel with reaction class 4, after treatment with the
Sayerlack fire retardant cycle, obtains the reaction class 1. Our certifications were awarded by the Fire
Department - Central Technical Prevention and Safety Direction of Roma Capannelle.
Sayerlack’s fire retardant products will be tested in the near future also in accordance to new European
regulations (Euroclass), this to allow prompt introduction on the market.
millimetres
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Raw MDF panel
MDF panel coated with
the “TA” system
300
250
200
150
100
50
0
0 50 100 150 200 250 300 350 400 450 500 550 600 650 700
A B
Fire reaction test based on UNI 9174
Flame propagation speed
< 30/mm/Min
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FIRE REACTION
M.D. 26/6/84 - M.D. 6/3/92 (UNI 9796) - Ministry of Internal Affairs Italy
WOOD FOR STRUCTURAL
USE IN BUILDING
The fire behaviour of load bearing wooden
structures, which requires passive protection,
is totally different from that of metal structures.
In the event of fire, the temperature reached
in a closed room is of several hundreds degrees.
Metal, an excellent heat conductor, at temperatures
over 450º C softens and loses all mechanical
resistance, and virtually “collapses”.
Wood, a bad conductor, does not collapse: flames
and heat carbonise it’s surface, which limits the
propagation of combustion to the outer layers.
Intumescent coatings increase such protective
layer as when heated, they cause a swelling of the
coating film (several centimetres) which acts as
a barrier to fire.
This is why wood is increasingly used in current
engineering and architectural works.
Abrasion test, TABER-UNI 9115/87
Light resistance test, UNI 9427/89
Exposure
time (hours)
20
Grey scale
evaluation
5
Remarks
Flawless
Dry heat resistance test, EN 12722/97
Temperature °C
55
70
85
100
120
Assessment
not performed
5
5
4
3
Remarks
-
Flawless
Few isolated
Light halo visible from
different directions
Temperature °C
55
70
85
Assessment
5
3
3
Remarks
No damage
Disc just visible
Disc just visible
Wet heat resistance test, EN 12721/97 FIRA Report: TMCMF03296
Test
Crosscut
Scrape: Surface
penetration
Scrape: Penetration
to Substrate
Assessment
5
5
5
Remarks
Cuts smooth
8.7N
20.6N
Resistance to Mechanical Damage BS3962 Part 6:1980 FIRA Report: TMCMF03296
Assessment
5
5
5
5
5
Remarks
No damage
No damage
No damage
No visible damage
No visible damage
Surface Resistance to cold
liquids, EN 12720/97
FIRA Report: TMCMF03296
Liquid
Ethanol 48%
Tea
Coffee
Cold Oils (24h)
Cold Fats (24h)
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A B
6
Coating systems, during spray application can lose 20-30% of product due to “overspray”. We recommend increasing
the purchase quantity of the final product by the same percentage in order to ensure the substrate receives the
certified quantity. Losses due to sanding can also occur; sanding should therefore always be very light.
FIRE RETARDANT SYSTEMS
CABE 61 Clear polyurethane, 450 gr/m2 Ministerial homologation no. BO502B11CD200001 of 27/04/88
System to obtain the class 2 fire reaction according to D.M. 26/6/84
Comparison between fire retardant (A) and intumescent (B) cycle
TA
TB
TC
TD
Clear polyurethane, 450 gr/m2
White polyurethane, 450 gr/m2
Pigmented polyurethane, 450 gr/m2
White, waterborne, 400 gr/m2
System Certification Achieved
Class 1 fire reaction according to M.D. 6/3/92 - UNI 9796
Ministerial homologation no. BO1159PVI100001 of 15/11/96
Class 1: BS 476 - Part 7 – Solid Oak, birch multilayer ply and pine
veneered on MDF (United Kingdom)
Class O: BS 476 - Part 6 – on Class O treated substrate
UNE 23.727-90 Clasificaciòn M1 - expediente n. 3008471 - placas
de fibrocemento (España)
Class 1 fire reaction according to M.D. 6/3/92 - UNI 9796
Ministerial homologation no. BO1159PVI100002 of 18/02/97
Class 1: BS 476 - Part 7 - Class 1 – on birch multilayer ply
Class O: BS 476 - Part 6 – on Class O treated substrate.
Class 1 fire reaction according to M.D. 6/3/92 - UNI 9796
Ministerial homologation no. BO1159PVI100003 of 22/02/00
Class 1 fire reaction according to M.D. 6/3/92 - UNI 9796
Ministerial homologation no. BO1159PVI100004 of 05/09/00
TU 74** Clear acrylic polyurethane sealer-topcoat.Use 20% TH 790 hardener and add 5% of XT 500 additive. Apply 2 coats
of 120g/m2.
System required to achieve M1 Class reaction-to-fire status based on French standard NF P92-501
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POLYURETHANE PRODUCTS FOR INTERIORS
TU 22
TZ 22**
Clear polyurethane basecoat – two 150 gr/m2 coats cured at 50% with TH 222
Clear polyurethane topcoat – one 150 gr/m2 coat cured at 50% with TH 222
TA system – Class 1 fire reaction 1 M.D. 6/3/92 & BS476 P7 - 450 gr/m2
The system exhibits an excellent transparency (even at such heavy applied weights) and good scratch resistance,
with the possibility of choosing between a 10 or 25 gloss mat topcoat or a 75 gloss semigloss topcoat. It can be
used by spray or curtain coater for a highly professional use to meet the aesthetic and functional requirements
of architects and designers.
TU 22/13
TZ 2225/13
White polyurethane basecoat – two 150 gr/m2 coats cured at 50% with TH 333
Mat white polyurethane topcoat – one 150 gr/m2 coat cured at 50% with TH 333
TB system – Class 1 fire reaction 1 M.D. 6/3/92 & BS476 P7- 450 gr/m2
The cycle exhibit excellent flow and covering. It features good scratch resistance and excellent finish.
It’s available in two versions: a 25 gloss mat topcoat or a 75 gloss semigloss topcoat.
TU 22/13
TZ 22**
White polyurethane basecoat – two 150 gr/m2 coats cured at 50% with TH 333
Clear polyurethane topcoat – one 150 gr/m2 coat cured at 50% with TH 333
+ 40% max of polyurethane paste TP 4140/XX
TC system – Class 1 fire reaction 1 M.D. 6/3/92 - 450 gr/m2
If a pigmented finish is required featuring excellent appearance, the “TC” cycle (a compound of basecoat and
mat or semigloss binder + pigmented pastes TP 4140/XX at 30%) is the most appropriate system to use: thousands
of colour shades are possible with just 12 polyurethane pastes. Perfect for interior decorators and designers.
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Base colours of the
TP 4140/XX series
polyurethane pastes
TU 280
TZ 3325
Clear polyurethane basecoat – two 150 gr/m2 coats cured at 50% with TH 755
Mat polyurethane topcoat – one 150 gr/m2 coat cured at 50 % with TH 755
CABE 61 system – Class 2 fire reaction 1 M.D. 26/06/84 - 450 gr/m2
The system, applied on beech multilayer ply for wall panels, is comparable to an normal polyurethane
finishes, both for ease of application and for the final result; in fact, the finish features excellent smoothness
and transparency. Drying times are similar to a normal polyurethane without whitening problems.
N.B.: neutral binders of the “TC” cycle are available at 10 and 25 gloss (mat) and 75 gloss (semigloss) but with the addition of some types of
polyurethane pastes, the gloss level may slightly change.
* Black A5 does not have high opacity and should only be used for stain recipes, or mixed with other bases. If you need a lacquered black, use paste
TP 4140/57.
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TP 4140/C4 TP 4140/A8 TP 4140/B8 TP 4140/B2
TP 4140/B6 TP 4140/A5*TP 4140/C9 TP 4140/A2
TP 4140/B3 TP 4140/B9 TP 4140/A1 TP 4140/C7
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Mixtures with
waterborne pastes,
XA 2006/XX series
The “TD” waterborne system meets the requirements of exhibition stand organisers that need a quick and easy
to apply product. With only two coats, for 400 gr/m2 total (330 gr/m2 + water) you can obtain a Class 1 fire reaction
coating. As it is free from solvents, the product can be used for applications and/or retouches in places (such
as fairs, museums, tunnels) where flammable coatings cannot be used. Also with the “TD” cycle you can obtain
stains by adding 3% of XA 2006 series waterborne paste to the AF 22/13 white product.
Below are the mixtures obtained.
WATERBORNE COATINGS FOR INTERIORS
AF 22/13 Mat white waterborne topcoat – two 200 gr/m2 coats (including 20% of tap water)
TD system – Class 1 fire reaction 1 M.D. 6/3/92 - 400 gr/m2
N. B.: the white topcoat of the “TD” cycle is only available in the 5 gloss version (matt) but, if some kinds of water-based pastes are added, it
can slightly change.
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XA 2006/06 XA 2006/08 XA 2006/17 XA 2006/21
XA 2006/42 XA 2006/52 XA 2006/53 XA 2006/61
XA 2006/72 XA 2006/BB
XA 2006/26
XA 2006/69
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N.B. Fire services or interested authorities, in certain EU member states may ask for an update even if the
certificate has not expired, if the item is damaged or chipped. We can only issue certificates for the square
metres corresponding to the homologation: the owner (with the old but still valid certification) shall have
to prove to any inspectors that the new certificate is for maintenance only.
After several objections by the manufacturers of homologated coatings, a second edition of the UNI 9796
standard was issued in January 1998. Compared to the previous edition, an ageing cycle has been added
subject to a series of tests, so when a standard is mentioned, the most recent edition is the valid one.
With this amendment, the 5 year expiry has been eliminated.
For those who have never performed these works we suggest that you always ask for the room specifications
with the Fire services specification, so as to prevent any unpleasant situations.
At the end of the work, the painter must fill in a pre-printed form (Statement of application – provided by Sayerlack
when the order is placed). The form is used to state the use of the homologated basic weight for the specific fire
retardant cycle. The filled in form shall be faxed to Sayerlack, which shall issue a Statement of Conformity, valid for
5 years. This process may vary slightly depending on the EU member state the product is in use.
Procedure to issue
the Statement of
Conformity
(Certificate of Supply)
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Certifications
for Sayerlack
fire retardant
coatings
11
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09/2011
Z02A06UK
Sherwin-Williams Italy S.r.l.
Export Department
Via del Fiffo 12 - 40065 Pianoro (BO) - Italy
tel. +39 051 770511 - fax +39 051 770528
export@sayerlack.it - www.sayerlack.com
Technical Service
tel. +39 051 770770 - fax+39 051 770521
customerservice@sayerlack.com
Sherwin-Williams UK Coatings Ltd.
A1 Business Park - Knottingley
West Yorkshire - WF11 OBU - England
tel. +44 (0) 1977 673363 - fax +44 (0) 1977 673521
ukinfo@sherwin.com - www.sayerlack.co.uk
Technical Service
tel. +39 051 770770 - fax+39 051 770521
customerservice@sayerlack.com
Sherwin-Williams Ireland Ltd.
53 Robinhood Industrial Estate
Dublin 22 – Ireland
tel. +353 1460 1445 – fax +353 1460 1449
irlinfo@sherwin.com – www.sayerlack.co.uk
Technical Service
tel. +39 051 770770 - fax+39 051 770521
customerservice@sayerlack.com
SAYERLACK, a brand of Sherwin-Williams
101 West Prospect Avenue - 920 Midland
Cleveland, OH 44115 - USA
tel. +1 800 524 5979 - fax +1 216 566 1293
info@sayerlack.com - www.sayerlack.com
Technical Service
tel. +39 051 770770 - fax+39 051 770521
customerservice@sayerlack.com
Sayerlack Singapore Pte. Ltd.
8, Admiralty Street
#07-08 Admirax, Singapore 757438
tel. +65 6763 7789 - fax +65 6763 0252
infoasia@sayerlack.com - www.sayerlack.com
Technical Service
tel. +39 051 770770 - fax +39 051 770521
customerservice@sayerlack.com
SHERWIN-WILLIAMS
Sayerlack is a brand of