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KCMA Finish specifications and Test

KCMA Finish specifications and Test

General. These tests create, in accelerated form, the cumulative effects of years of normal kitchen conditions on prefinished cabinets. Except where otherwise specified, a cabinet door shall be used for evaluation in the finishing tests.The door to be used in any given test shall be representative of a normal production run, but shall be without screw holes or shall have all screw holes covered. All tests shall be run on new surfaces after cabinet finish has aged a minimum of 10 days.

1.0 Finish specifications
1.1 Appearance.
1.1.1 All exterior exposed surfaces and edges except the edges of end panels and the edges of back panels shall be free of saw marks and other imperfections and shall be filled and sanded,edgebanded or otherwise finished.Improper application of the various finishing coats on exterior of cabinet, e.g., runs, orange peel, fatty edges,blushing, etc. shall not be acceptable.Finish shall be clean and free of scratches and residue. Touch-up colors and/or burn-in repairs shall be matched with the surrounding areas of the finished surfaces (including filled nail and staple holes). The finish shall be free of any printing that may be caused by packing material.

Exceptions:
(1) Sides do not have to be finished on individual units, but exposed sides have to be factory finished or covered with factory-finished panels in the field.
(2) Toe rails do not have to be finished,but have to be covered or finished in the field.
(3) Undersides of wall-cabinet bottoms are considered to be interior exposed surfaces and shall comply with the provisions of Section 1.1.3.

1.1.2 All exterior exposed parts of cabinets (except toe rails and parts normally covered after installation) shall have nails and staples set and holes filled.
1.1.3 All interior exposed surfaces shall be free of saw marks and poor workmanship, and shall be covered with a laminate material or have a minimum of one coat of clear or pigmented finish.
2.0 Finish Test
2.1 General. These tests create, in accelerated form, the cumulative effects of years of normal kitchen conditions on prefinished cabinets.Except where otherwise specified, a cabinet door shall be used for evaluation in the finishing tests.The door to be used in any given test shall be representative of a normal production run, but shall be without screw holes or shall have all screw holes covered. All tests shall be run on new surfaces after cabinet finish has aged a minimum of 10 days.

2.2 Shrinkage and Heat Resistance
2.2.1 Purpose: To test ability of the finish to withstand high heat for long periods, such as inside truck, boxcar or other transport or storage facility;or in service under normal kitchen conditions.
2.2.2 Test Procedure:
A. Stabilize door at room temperature and humidity for 24 hours.
B. Place door in hotbox, 49°C ± 3°C(120°F ± 5°F) and 70% ± 5% relative humidity for 24 hours. Remove and allow door to stabilize at original room temperature and humidity conditions.
2.2.3 Required Performance:
By visual examination, the door finish shall show no discoloration and no evidence of blistering, checks, or other film failure when examined under the procedures of Section 2.7.
In event of failure during initial examination following testing, the tested parts shall be permitted to stand for 14 days and then shall be reexamined for the same performance requirements.

2.3 Hot and Cold Check Resistance
2.3.1 Purpose: To test ability of the finish to withstand hot and cold cycles for prolonged periods.
2.3.2 Test Procedure:
A. Use cabinet door not used in previous test. Stabilize at room temperature and humidity.
B. Cycle as follows: Place door in hotbox, 49°C ± 3°C (120°F ± 5°F) and 70% ± 5% humidity for one hour.Remove for 1/2 hour and allow to reach original room temperature and humidity conditions. Place in coldbox, -21°C ± 3°C (-5°F± 5°F) for one hour.Remove and allow door to reach original room temperature and humidity conditions.
C. Repeat for total of five cycles.
2.3.3 Required Performance:
The finish shall show no discoloration and no evidence of blistering, cold checking,or other film failure when examined under the procedures of Section 2.7.
In event of failure during initial examination following testing, the tested parts shall be permitted to stand for 14 days and then shall be reexamined for the same performance requirements.

2.4 Chemical Resistance
2.4.1 Purpose: To test ability of finish to withstand substances typically found in the kitchen and bath.
2.4.2 Test Procedure:
A. This test shall be made on these exterior exposed surfaces: door, front frame, drawer front, and end panel.
B. With cabinet in normal vertical position, place 3 cc’s of each of the following test materials on each of the four surfaces to be tested:Vinegar, lemon, orange and grape juices, tomato catsup, coffee (prepared for drinking at 46°C (115°F),with one teaspoon of instant coffee per cup of water), olive oil, 100-proof alcohol, the detergent solution
C. Permit the materials to stand for the stated times, then sponge wash the surfaces with clear water and dry with a clean cloth.
2.4.3 Required Performance:
1. There shall be no discoloration,stain, or whitening that will not disperse with ordinary polishing when examined under the procedures of Section 2.7.
In event of failure during initial examination following testing, the tested parts shall be permitted to stand for 14 days and then shall be reexamined for the same performance requirements.

2.5 Detergent and Water Resistance
2.5.1 Purpose: To test the door edge for proper application of the finish.
2.5.2 Test Procedure:
A. See drawing for suggested test equipment. Use #8 cellulose sponge or equivalent.Use full length of sponge except: For frame door, cut sponge length to two inches shorter than the shoulder length of the door rail.
B. Detergent solution shall be onehalf per cent by weight of an unconcentrated liquid dishwashing detergent and water.
C. Level trough and fill with detergent solution to one-half inch below top level of sponge. Place test door on sponge and permit to stand for 24 hours.
2.5.3 Required Performance:
1. There shall be no delamination or swelling.
2. The finish shall show no discoloration and no evidence of blistering, checking, whitening, or other film failure when examined under the procedures of Section 2.7.
In event of failure during initial examination following testing, the tested parts shall be permitted to stand for 14 days and then shall be reexamined for the same performance requirements.

2.6 Metal Cabinet Rust Resistance
2.6.1 Purpose: To test metal cabinets for rust resistance. (This test to be completed for metal cabinets only.)
2.6.2 Test Procedure:
A. Test shall be made on finished end or section thereof approximately 127 mm x 229 mm (5 inches x 9 inches), taken from regular production.
B. Scratch back of panel diagonally from corner to corner with razor blade to bare metal.
C. Expose for 288 hours (12 days) at 100 per cent relative humidity and 37°C to 39°C (98°F to 102°F). Inspect every 24 hours for the first 72 hours.
2.6.3 Required Performance:
1. At end of test period there shall be no blisters on the test unit when examined under the procedures of Section 2.7.
2. Rust creepage from edges of scratches shall not exceed 1.6 mm (1/16 inch) when examined under the procedures of Section 2.7.

2.7 Observation Procedures:
The following procedures shall be used to determine compliance when examining samples tested in Sections 2.2.3, 2.3.3, 2.4.3, 2.5.3 and 2.6.3. Examine the test specimen by placing it in a vertical position. Lighting shall be from an overhead white fluorescent light with bulb(s) positioned parallel to the floor and having an intensity of 75 to 100 foot-candles (807 to 1076 lux) on the surface. View at an eye-tospecimen distance of approximately 30-36 inches (772 to 914.4 cm) and at an angle of approximately 45 degrees. Direct sunlight or other angle light sources, which will accentuate or minimize the effect, shall be avoided.