Underwriters Labratories Report

Flamebusters Wood Flame Retardant Spray

Note: Test results below are for FLAMEBUSTERS for Wood (Class A & Class B)

• One was tested as Flame-No-More Class "B" Natural Finish
• The other was tested as Flame-No-More Class "A"
• To keep the reports accurate, no changes have been made to them.
• All references to Flame-No-More Class "B" Natural Finish Flame Retardants should now be read as FLAMEBUSTERS for Wood (Class B)
• All references to Flame-No-More Class "A" Flame Retardants should now be read as FLAMEBUSTERS for Wood (Class A)

12 Laboratory Drive, P.O. Box 13995
Research Triangle Park, NC 27709-3995

This has been approved and certified by UL. An independent, not-for-profit organization testing for public safety.

SPEC DATA

Report on Fire Retardant Coatings

File R12731
Project 89RT1476
June 23, 1989
CareChem Corp.
Hickory, NC
Copyright © 1989 Underwriters Laboratories Inc.

Underwriters Laboratories Inc. authorizes the above-named company to reproduce this Report provided it is reproduced in its entirety.

Description Product Covered

The products covered by this Report are fire retardant coatings.

Use

The coatings covered in this Report are intended for use as interior coatings as permitted by the authorities having jurisdiction. The established Surface Burning Characteristics of the coatings are applicable only when the coating material is applied in the indicated number of coats, coverage rates, substrates, and overcoats and undercoats as specified in the published advices of Underwriters Laboratories Inc. and when the coating is maintained.

Test Record No. 1 - Examination of Material:

The materials used in this investigation were produced in a ready-to-use form under the observation of a representative of Underwriters Laboratories Inc. and were applied to the indicated test surfaces at the manufacturing location.

The compositions of the coating materials are of a proprietary nature and the formulas involved are on file at the Laboratories for use in the Follow-Up Service Program.

Various chemical and physical analyses were conducted on the coating materials and the results obtained from these analyses were employed in the establishment of specifications for use in the Follow-Up Service Program.

Surface Burning Characteristics Tests: Samples: Substrate

Douglas Fir - The test decks were 21 in. wide and 8 ft long, composed of 1 by 4 in. tongue-and-groove Douglas fir flooring fastened together on the unexposed surface with wood furring strips. Three such decks were butted together end to end to form the 24 ft long test surface required to fill the Steiner Tunnel furnace.

Coatings

The coating materials were applied to the test surfaces by a representative of the submittor under the observation of a staff member of Underwriters Laboratories Inc. The coating materials were roll applied in one coat. The amount of coating applied was determined by weight.

Three coatings were evaluated under this investigation and the coatings have been identified as

1. "Flame-No-More Class A"
2. "Flame-No-More Class "B" Natural Finish"
3. "Flame-No-More Class B Semi-Gloss Finish". 

The first coating was applied at a rate of 260 sq.ft./gal per coat; the second coating was applied at a rate of 150 sq.ft./gal per coat; and the third coating was applied at a rate of 150 sq.ft./gal.

The test samples were conditioned for 28 days at a temperature of 70 +/- 5°F and relative humidity of 45 to 55 percent before testing.

Method

The tests were conducted in accordance with the Standard of Underwriters Laboratories Inc., Tests for Surface Burning Characteristics of Building Materials, UL 723.

Results

Data on flame spread and smoke developed appear in the following tabulations.

Flame Spread

The maximum distance the flame spreads along the length of the sample from the end of the igniting flame is determined by observation. The flame spread Classification of the material is derived by determining the area under the flame spread distance (ft) versus time (min) curve, ignoring any flame front recession, and using one of the calculation methods as described below:

1. If the total area (AT) is less than or equal to 97.5 min-ft (meter-minute x 3.3), the flame spread Classification is to be 0.515 times the total area (AT), FSC = 0.515 AT.
2. If the total area (AT) is greater than 97.5 min-ft (meter-minute x 3.3), the flame spread Classification is to be 4900 divided by 195 minus the total area (AT), FSC = 4900/ (195-AT).

Smoke Developed

The smoke developed during the test is indicated by the output of a photoelectric circuit operating across the furnace flue pipe. A curve is developed by plotting values of light absorption (decrease in cell output) against time. The calculated value for smoke developed Classification is derived by expressing the net area under the curve for the material under test as a percentage of the net area under the curve for untreated red oak.

Conclusion

The following Surface Burning Characteristics are established for the coatings evaluated under this investigation:

Surface Burning Characteristics:

Follow-Up Service Program

The coatings covered by this Report will be placed under the Follow-Up Service of Underwriters Laboratories Inc.

The Classification Marking of Underwriters Laboratories Inc. attached to the product will be evidence that such a product has been produced under the Follow-Up Service Program. Such a Classification Marking will bear the information as shown below:

Underwriters Laboratories Inc.®
Classified Fire Retardant Coatings

Surface Burning Characteristics of Applied Coatings

Report by:
THOMAS PLENS
Senior Engineering Assistant
Fire Protection Department   

Reviewed by:
DANIEL P. RYAN
Engineering Group Leader
Fire Protection Department

TP/DPR:ajn

Note:  The above report has not been changed, it is posted as written. Notice the Address change in contact info.