Commercial Silk Int'l

ThermaLeaf® Foliage (Inherently Fire Retardant) Specification Guide


If you are an architect or interior designer looking to specify our ThermaLeaf® fire retardant foliage for a project, we have created a comprehensive product specification. In addition, we have created three-part product specifications for our plants and trees that includes this information below and is available for download (.doc file format) by using our project list feature.

What is ThermaLeaf® Foliage
ThermaLeaf® Foliage (Inherently Fire Retardant) is created through a process by which fire retardant chemicals are impregnated into the materials during the manufacturing process. These chemicals are blended with the fabric as well as the plastic or PVC parts at the time the materials are injected into the mold, creating the safest fire retardant plants and trees on the market.

What is NOT ThermaLeaf® Foliage
Foliage treated by spraying or dipping it in topical fire retardant chemicals is not ThermaLeaf®. Instead of fire retarding during the injection of the material into the foliage mold, topical treatments are performed as an after-market application. This treatment often leaves a spotty or discolored film that can degrade the foliage and make it look wilted, along with leaving a tacky surface film that attracts dust. Topical treatments can also wash or wear off easily, leaving a weakened protection and requiring expensive re-application of fire retardant chemicals to artificial plants and artificial trees.

Fire Test Methods
All foliages should be tested against each of the following standard test methods and should hold a Class "A" rating as determined by the National Fire Protection Agency (NFPA).

Test Pre-Conditioning Ignition Seconds Smoke Density Criteria ThermaLeaf® Foliage Rating
After Flame Flame Spread Flaming Driplets
OSFM
California Title 19
Tests: After Flame
State Certified
Room temperature / Average humidity for at least 10 days
12 sec. in a chamber
N/A
10 sec. Max
None is allowed
Driplets must self-extinguish when hitting chamber floor
Registered
Flame Resistant Product
GSA
US Gov SIN 4722-06
Tests: After Flame
Government Test
Soaking in water for 2-3 hours
12 sec. in a chamber
N/A
15-18 sec. Max
N/A
None allowed
Pass
ASTM International
ASTM E84-95 Class A
(similar to UL723)
Tests: Smoke Density & Flame Spread
Strictly Measurements,
not pass/fail
Oven dried at 140-150º for 90 minutes
12 sec. in a chamber
N/A
2 sec. Max
3.5"-6.5" max char length
Driplets must extinguish when hitting chamber floor
Pass

NFPA International
NFPA 701
1989 Small Scale

Tests:
After Flame & Char Length

Oven dried at 140-150º for 90 minutes
12 sec. in a chamber
N/A
2 sec. Max
3.5"-6.5" max char length
Driplets must extinguish when hitting chamber floor
Pass
NFPA International
NFPA 701
1996 & 1999 Small Scale

Tests:
After Flame & Weight Loss
Oven dried at 105º for 30 minutes
45 sec. in a chamber
N/A
2 sec. Max
N/A flame spread, but no more than 40% weight loss
Driplets must extinguish no more than 2 sec. after hitting chamber floor.
Pass
NFPA International
NFPA 705
1997 Field Flame Test

Tests:
After Flame & Flame Spread
None
Field tested in draft area with wooden match (or equivalent) for 12 sec.
N/A
2 sec. Max
4" max char length
Driplets must self-extinguish when hitting chamber floor
IFR Pass
British Standards Institution (BS 476: Part 7 & Part 6 and Class 0)
British Standards Institution
(BS 476: Part 7
& Part 6 & Class 0)

Tests:
Fire Propagation & Surface Spread of Flame
Conditioned at 23 ± 2º C and a relative humidity of 50 ± 5% for 48 hours
Field
N/A
NA
165mm max char length
NA
IFR Pass

 

Toxicity Test Methods
All foliages should be tested against each of the following standard test methods and should be below the IDLH Value of the listed gases in the NIOSH Guide.

Test Pre-Conditioning Ignition Seconds Criteria ThermaLeaf® Foliage Rating
IDLH Values Limits (mg/m³)
C02 CO HF HCI HBr SO2b NO2c HCN
NF X 70-100
Tests: Analysis of Pyrolysis and Combustion Gases
Conditioned at 23 ± 2º C and a relative humidity of 50 ± 5% for 48 hours
Field tested in a tube furnace for 20 minutes.
73000 mg/m³
1400 mg/m³
25 mg/m³
76 mg/m³
101 mg/m³
270 mg/m³
38 mg/m³
56 mg/m³
IFR Pass

More information about fire retardant foliage:

Fire resistant plants overview >
Fire safe plant applications: ThermaLeaf® vs. Topical >
State fire codes for flame retardant plants >
Silk plant and tree fire tests >
Non-fire retardant plant and tree risks: real life fire examples >


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