Product Specifications Random Rock:
Product Specifications Slatestone:
Color Fastness (per ANSI Z 124 xenon arc test): color change @ 200 hours: 0
Specific Gravity: .6
Insulation value: Estimated at R 4.3 per inch of thickness
Hardness (durometer D): 68
Coefficient of Expansion (in. /in. F): 4.8"/in./C x 10(-5) (varies depending upon substrate attached to).
Fuel Contributed: 0
Flame Spread (per ASTM E162):
The information and data herein are believed to be accurate and have been compiled from sources believed to be reliable. It is offered for your consideration, investigation and verification. Due to the inherent manufacturing characteristics of polyurethane, and the individual "hand" coloring of our product, dimensions and weights are approximate and the colors, as with natural stone, will vary.
Section II - Hazardous Ingredients/Identity Information
Section III - Physical/Chemical Characteristics
Section IV - Fire and Explosion Hazard Data
Section V - Reactivity Data
Section VI - Health Hazard Data
Section VII - Precautions for Safe Handling and Use
Section VIII - Control Measures
Barron Designs Inc. has conducted extensive testing on it's proprietary coating system. The details and results of the testing are as follows:
Windsor Columns Hardness/Adhesion Test
The hardness adhesion of the coating to the substrate depends on the process of finishing the substrate, film thickness, and drying of the coating. The "Uni" pencil is used to test the hardness of the coating and the cross cut test to check its adhesion
Hardness test: Place the "uni" pencil into the hardness test scale at an angle of 45°, adjust the tested film touched by the test scale and pencil at the same level, push the scale evenly to make the pencil slide on the film 5-8 cm, then rub the pencil scratchby erasure to check whether there is any scratch. The hardness measured by the pencil has 17 grades as follows: 9H, 8H, 7H, 6H, 5H, 4H, 3H, 2H, H, F, HB, B 2B, 3B, 4B, 5B, and 6B. 9H is the hardest and 6B is the softest. The sprayed film should be tested after thoroughly dry. It is necessary to record the time needed for the drying of the film. The hardness test scale is shown below.
Adhesion Test: Hold the artist knife with the sharp point on the test film at an angle on 35-45° and cut the film into the substrate of the coating for a cross hatch of the film. Cut 100 10 cm squares. Apply transparent tape to the film to be tested, and then rapidly pull off the tape to check the adhesion of the coating film.
Minimum hardness requirements based on anticipated use were met. Required class for adhesion was met.
Windsor Columns Xenon Test
In the natural environment, the factors of temperature, humidity, sunlight and oxidation, chain rupture may occur resulting in the color, gloss, hardness, adhesion, and bendability of the coating being changed. We can use air exposure or the artificially accelerated aging test to test the weathering resistance of the film. Due to the lengthy time required for the air exposure test and the poor reproducibility of the test results (due to area differences), we use the arc artificial accelerated aging test.
Cold air arc lamp
Radioactive bombardment: 50.6WM² (300-400 NM)
Temperature of Black Plate 63+/-3°C
Relative humidity: 50 +/- 55RH
Cycle time of spray: 18 mins spraying per 120 mins
After testing for a certain time and accumulated radiation, we check for color and gloss difference visually and by grayscale. We also check ΔE with a color difference meter.
The test conditions comply with the following standards: ISO11341:1994, ASTM G26, JIS B-7754, CNS 11232. The spectral picture of sunlight spectrum and arc lab is below.
No evidence of surface deterioration, film shrinkage, objectionable color or gloss change, delamination, edge lifting, cracking, pitting, blistering or other degradation.
Windsor Columns Salt Spray Test
After metal is finished by electroplating it will display bubbling, disintigration, and rusting due to salt spray (fog). This is especially true when the product is used around the seaside, at the beach, and in industrial districts which have high strength salt spray (fog).
Salt Spray (fog) Strength: 5% (W/V)
Salt Spray (fog) PH value: 6.5-7.2
Spray Fog Pressure: 1.00-+/-0.01 kgf/cm²
Spray Fog Amount: 1.0-2.0 ml/80 cm²/h
Temperature of pressed drum: 35 +/-1°C
Temperature in Lab: 47 +/-1°C
Relative Humidity in Lab: 85%
The test conditions comply with the following standards: GB/T 1771-1991, ISO7253-1996, CNS 10757 K6801
Maximum level of lifting was not exceeded.
Windsor Columns Hot/Cold Cycle Test
The film can be influenced by changes in temperature, humidity, sunlight, and other factors. The test is to insure that the film does not crack, blush, lose gloss, adhesion or flexibility.
The process for the hot/cold cycle test is as follows: The total cycle time is 5-10 cycles. The sample is put at a constant temperature of –20°C for two hours and then at 50°C constant temperature for two hours. The sample is then visually inspected for cracks, blistering, etc.
No cracking, blistering, etc. was observed.
Windsor Columns QUV Test
The film coating and fading of the sample panel are tested under UV light with 313 nm wave length so as to assess the accelerated exposure situation produced in the usage process. It can also be provided as the reference for designing the finishing system for quality control. The test is quick and not influenced by weather and it's results are highly accurate.
No color change was observed.