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Report of Test Results
Determined by:
NEMA LD-3-1995
Section 3.5 Boiling Water
Section 3.6 High Temperature
Section 3.8 Ball Impact
ANSI Z124.6-1997
Section 5.1 Colorfastness
ASTM C880 Flexural Strength
ASTM D638 Tensile Strength
ASTM D790 Flexural Strength
ASTM D570 Water Absorption
ASTM D2538 Barcol Hardness
ASTM D696 Thermal Expansion
Prepared for:
Alpha & Omega Supply
4051 Warehouse Road
Ft. Myers, FL 33916
Report Number:
Cor0205
Issued by:
NAHB Research Center, Inc.
400 Prince George’s Boulevard
Upper Marlboro, MD 20774-8731
Materials Tested:
Davinci Solid Surface
Date of Issue:
February 14, 2005
Report of Test Results
Determined by:
NEMA LD-3-1995
Section 3.5 Boiling Water
Section 3.6 High Temperature
Section 3.8 Ball Impact
ANSI Z124.6-1997
Section 5.1 Colorfastness
ASTM C880 Flexural Strength
ASTM D638 Tensile Strength
ASTM D790 Flexural Strength
ASTM D570 Water Absorption
ASTM D2538 Barcol Hardness
ASTM D696 Thermal Expansion
Prepared for:
Alpha & Omega Supply
4051 Warehouse Road
Ft. Myers, FL 33916
Report Number:
Cor0205
Issued by:
NAHB Research Center, Inc.
400 Prince George’s Boulevard
Upper Marlboro, MD 20774-8731
Materials Tested:
Davinci Solid Surface
Date of Issue:
February 14, 2005
TABLE OF CONTENTS
I. PURPOSE..................................................................................................................................1
II. BACKGROUND......................................................................................................................1
III. TEST METHODOLOGY........................................................................................................1
IV. TEST RESULTS......................................................................................................................5
V. DISCUSSION OF RESULTS..................................................................................................6
I. PURPOSE
Many test methods can be used to determine specific properties of solid surface materials.
Typically, test methods are selected that predict performance of installed material. Test methods can
also be used as part of quality control during the manufacturing process. It would be expected that
material would perform consistently in a manufacturing environment that is under control.
II. BACKGROUND
Alpha & Omega Supply requested that the NAHB Research Center, Inc., conduct a series of tests on
one set of white Davinci solid surface panels. The tests performed were: NEMA LD3 3.5 Boiling
Water Resistance, NEMA LD3 3.6 High Temperature Resistance, NEMA LD3 3.8 Ball Impact
Resistance, ANSI Z124.6 5.1 Colorfastness, ASTM D570 Water Absorption, ASTM D638 Tensile
Strength, ASTM D790 Flexural Strength, ASTM C880 Flexural Strength, ASTM D696 Thermal
Expansion, and ASTM D2538 Barcol Hardness.
The panels consisted of a 0.500” thick white Davinci solid surface panels. These panels were
received by the Research Center on November 15, 2004, and testing was initiated November 23,
2004. Testing was completed on February 2, 2005.
III. TEST METHODOLOGY
Test Procedures and Performance Requirements
NEMA LD3 3.5 Boiling Water Resistance
The boiling water test, Section 3.5 of the NEMA LD-3 standard, evaluates the samples resistance to
high temperature in the presence of water. A 3.75" diameter aluminum vessel is filled to within .5"
of the rim with distilled water. The vessel is heated until the water boils using a hot plate. Once the
water is boiling, the vessel is removed from the hot plate and about 10 ml. of the water is poured on
the sample. The vessel is then placed on the water and allowed to remain for 20 minutes. The water
is wiped off and after 24 hours, the sample is evaluated. Any color change shall not be greater than
2 CIE units.
NEMA LD3 3.6 High Temperature Resistance
The high temperature test, Section 3.6 of the NEMA LD-3 standard , also evaluates the samples
resistance to high temperature. A 3.75" diameter aluminum vessel is filled to within .5" of the rim
with bathwax. The vessel is heated to 365oF using a hot plate. Once the temperature of the wax
reaches 365oF, the vessel is removed from the hot plate and the wax allowed to cool to 356oF. The
vessel is then placed on the sample for 20 minutes. After 24 hours, the sample is evaluated. Any
color change shall not be greater than 2 CIE units.
NEMA LD3 3.8 Ball Impact Resistance
The ball impact test, Section 3.8 of the NEMA LD-3 standard, provides an evaluation the samples
resistance to an impact from a 1 ½ in. ½ lb steel ball. Using the free fall apparatus as described in
the standard, the ball is dropped on the sample from increasing height until a failure is observed.
Once a failure is observed, the height of impact is reduced by 1 in. and the sample impacted again.
Three consecutive impacts without a failure is the samples impact resistance.
Z124.6-1997 Section 5.1 Colorfastness
Sample Preparation:
One sample, measuring approximately 2" x 5", is required for each test. After a control reading is
taken on the spectrophotometer, the sample is exposed to 200 hours of testing in an Atlas Ci3000
Xenon Arc Weather-Ometer. The sample to be tested is mounted in a holding plate such that it may
be attached to a rotating rack in the machine.
Test Method:
The apparatus used by the Research Center for conducting the colorfastness test is an Atlas Model
Ci3000W Xenon Arc Weather-Ometer. The weather-ometer consists of a chamber which contains a
cylindrical test sample mounting rack which rotates about a xenon arc lamp. The xenon arc lamp is
positioned in the center of the cylindrical rack, and the rack is constructed such that the distance
between the faces of specimens positioned 180o apart is 37¾".
Samples to be tested are mounted in a holding plate and attached to the cylindrical rack in the
machine such that the finished surface is facing the xenon arc lamp. The xenon arc lamp is
subsequently activated and the lamp intensity is automatically adjusted to .35 w/m2 at 340nm and the
black panel temperature is maintained 145oF. The samples are exposed to the xenon arc light for
200 hours.
At the end of the 200 hour test period, the samples are removed from the machine and visually
inspected for color change against the control sample. Readings are taken on the spectrophotometer
and compared to the previously stored control reading.
Performance Requirement:
Test samples shall show no significant change in color or surface texture when inspected with the
unaided eye from a distance of 1 to 2 feet and when compared with the control sample. The samples
must be inspected under a light source producing an illumination intensity of approximately 150
footcandles. When evaluated against the control reading using the spectrophotometer set at a 10o
D65 light source and using the CIELAB color scale, the . E shall be less than 2.0.
ASTM D-570 Water Absorption of Plastics
Sample Preparation
The samples are heated in an oven for 24 hours at 122° F then placed in a dessicator to cool for 24
hours.
Test Method
The samples are removed from the dessicator then weighed and placed in a container of distilled
water maintained at 73°F for 24 hours. After 24 hours, the samples are removed, dried, and
weighed. The %increase is then calculated. If it is suspected that material was lost during the
water exposure, the samples are placed in the dessicator for 24 hours and weighed again.
The samples are then returned to the water bath for the long term water absorption test. The
samples remain in the water until the gain in weight per two week period is less than 1% of the
total increase in weight.
ASTM D638 Tensile Strength
Sample Preparation
Ten test samples, each measuring .500” x 1.125” x 11.000”, are required for each test. These
samples are milled into a “dog bone” as specified in the ASTM D638 standard. The samples are
conditioned for 48 hours t 75oF and 50% relative humidity. Preparation continues by loading the
samples in the Universal Test Machine.
Test Method
The Universal Test Machine is set to run the “ASTM D638 Plastic Tensile Test” program. The test
sample is loaded into the grips of the machine. An extension indicator is placed on the sample. The
machine is programmed to run in accordance with the ASTM D638 standard and runs at .2 in./min.
When rupture occurs, tensile strength, percent elongation, and modulus of elasticity is calculated.
ASTM D790 Flexural Strength
Sample Preparation:
Ten test samples, each measuring approximately 10.000" x 0.500" x 0.500", are required for each
test. The samples are conditioned for 40 hours at 75oF and 50% relative humidity. Preparation
continues by loading the sample in the Universal Test Machine.
Test Method:
The Universal Test Machine is set to run the “ASTM D790 Plastic Flex Test” program. Each
specimen is placed on the supports with a span of 8.000”. The radius of the supports is 0.375”. The
loading apparatus is then placed on top of the specimen. The loading points are 2.67” from each
other and from each adjacent support. The loading points have a radius of 0.375”. The machine is
calibrated with a 1000 lb. load cell. The machine begins loading in the center at a rate of 0.24” per
minute. When rupture occurs, peak load, deflection and position of break is recorded. Modulus of
elasticity and modulus of rupture are determined using this information.
ASTM C880 Flexural Strength of Dimensional Stone
Sample Preparation:
Ten test samples, each measuring approximately 10.000" x 4.000" x 0.500", are required for each
test. The samples are conditioned for 40 hours at 75oF and 50% relative humidity. Preparation
continues by loading the sample in the Universal Test Machine.
Test Method:
The Universal Test Machine is set to run the “ASTM C880 Stone Flex Test” program. Each
specimen is placed on the supports with a span of 5.000”. The radius of the supports is 1.000”. The
loading apparatus is then placed on top of the specimen. The loading points are 2.50” from each
other and 1.25” from each adjacent support. The loading points have a radius of 1.000”. The
machine is calibrated with a 1000 lb. load cell. The machine begins loading in the center at a rate of
600 psi per minute. When rupture occurs, peak load, deflection and position of break is recorded.
Modulus of elasticity and modulus of rupture are determined using this information.
ASTM D2538 Barcol Hardness
Sample Preparation
One panel measuring 8.000” x 8.000” is conditioned for 48 hours at 73 oF and 50% relative
humidity. The sample is then placed on a level laboratory bench top.
Test Method
A Barber Colman Impressor is used to conduct the test. The machine is calibrated before use using
the calibration disks and glass. The Impressor is then placed on the material, depressed, and a
reading is taken. This is repeated five times on different areas of the panel. The five results are
averaged for the barcol hardness value reported.
ASTM D696 – Thermal Expansion
This test was subcontracted through Anter Laboratories and their report is attached.
IV. TEST RESULTS
Summary of Test Results
NEMA LD3 3.5 Boiling Water Resistance
1= No Effect –No blistering, crazing, delamination, or cracking was observed. No discoloration was
observed.
NEMA LD3 3.6 High Temperature Resistance
Slight Effect - A whitening of the material was noticed when observed from certain angles. No
blistering, crazing, delamination, or cracking was observed.
NEMA LD3 3.8 Ball Impact Resistance
Three impacts at the machines capacity, 114”, resulted in no failure of the material. The impact
resistance height is greater than 114”.
ANSI Z124.6 Section 5.1 Colorfastness
The color change was determined to be 0.46CIE. It passed the minimum ANSI requirement of less
than 2.0 CIE
ASTM D570 Water Absorption
For the 24 hour water absorption test, the samples had an average increase of 0.051%. The long
term water absorption resulted in an average increase of 0.57%.
ASTM D638 Tensile Strength
The average tensile strength was determined to be 3904 psi. Average modulus of elasticity was
determined to be 1.26 x 106 psi.
ASTM D790 Flexural Strength of Plastics
The average flexural strength was determined to be 5465 psi. Average flexural tangent modulus was
determined to be 1.12 x 106 psi.
ASTM C880 Flexural Strength of Dimensional Stone
The average flexural strength was determined to be 6695 psi.
ASTM D2538 Barcol Hardness
The samples had an average barcol hardness of 56.
ASTM D696 Thermal Expansion
The sample had a thermal expansion determined to be 4.17 x10-5
V. DISCUSSION OF RESULTS
These tests were conducted under the direct supervision of laboratory personnel. The panels were
not damaged during shipping and it did not appear that they were tampered with prior to arrival.
_________________________________
Charles P. Arnold
Laboratory Services
This report may be distributed in its entirety but excerpted portions shall not be distributed without prior written approval of
NAHB Research Center, Inc. NAHB Research Center, Inc., is accredited by the National Voluntary Laboratory
Accreditation Program for the specific scope of accreditation under Lab Code 100104.
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