CAN ULC Flame Test S102 3-ply Mylar

Testing was conducted in accordance with the standard methods of CAN/ULC S102, Standard Method of Test for Surface Burning Characteristics of Ceiling and Miscellaneous Materials and Assemblies.

Sample And Assembly Description

Upon receipt of the samples they were placed in a conditioning room where they remained in an atmosphere of 23 ± 3°C (73.4 ± 5°F) and 50 ± 5% relative humidity. The sample material was cut to 17 1/2 in. wide by 8 ft long and adhered to a 6 mm thick inorganic GRC board using FR-Shur Stik wall covering adhesive. The samples are identified by the client as Roysons -20 oz Vinyl Wallcovering — 3 PLY MYLAR. For each trial run, three 8 ft. lengths of sample material were attached to the ceiling with a layer of 6 mm reinforced cement board placed on the floor of the tunnel, the tunnel lid was lowered into place, and the samples were then tested in accordance with CAN/ULC S 102.

Testing and Evaluation Methods

The results of the tests are expressed by indexes, which compare the characteristics of the sample under tests relative to that of select grade red oak flooring and inorganic-cement board.

Flame Spread Classification: This index relates to the rate of progression of a flame along a sample in the 25-foot tunnel. A natural gas flame is applied to the front of the sample at the start of the test and drawn along the sample by a draft kept constant for the duration of the test. An observer notes the progression of the flame front relative to time. The test apparatus is calibrated such that the flame front for red oak flooring passes out the end of the tunnel in five minutes, thirty seconds (plus or minus 15 seconds).

Smoke Developed: A photocell is used to measure the amount of light, which is obscured by the smoke passing down the tunnel duct. When the smoke from a burning sample obscures the light beam, the output from the photocell decreases. This decrease with time is recorded and compared to the results obtained for red oak, which is defined to be 100.

Results & Observations

(A) Flame Spread: The resultant flame spread classifications are as follows: (Classification rounded to nearest 5)

20 oz/ Vinyl Wallcovering
3 Ply Mylar
Flame SpreadFlame Spread Classification
Run 145
Run 25
Run 35

(B) Smoke Developed: The areas beneath the smoke developed curve and related classifications as follows: (Classification rounded to nearest 5)

20 oz/ Vinyl Wallcovering
3 Ply Mylar
Smoke DevelopedSmoke Developed Classification
Run 13330
Run 233
Run 331

(C) Observations:

During the tests, the sample surface ignited at approximately 93 to 110 seconds; the flame began to progress along the sample until it reached the maximum flame spread.


  • This test sample meets the Canadian Standard - CAN/ULC S102.
  • This test sample meets the A.S.T.M. E-84 Standard.
  • This test sample meets the N.F.P.A. LIFE SAFETY CODE 101.
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