A-A-2851C
3. SALIENT CHARACTERISTICS.
3.1 Type I- Paint Roller. The paint roller shall be of the slip-off design. The paint roller shall come installed with Type II, Class 2, and Style A, roller covers. Size 2 and 3 rollers shall have a 0.375 inch minimum pile height, Size 1 rollers shall have a 0.188 inch minimum pile height.
3.1.1 Grip. The grip shall be of a molded plastic. The grip shall have a tensile strength of not less than 3,500 pounds per square inch when tested in accordance to ASTM D 638. The grip shall be securely attached to the frame by pressure bonding or other means resulting in a bond that will not fail when a torque of 8 inch-pounds is applied. The outer end of the grip shall have a threaded hole for attaching an extension pole with a 3/4” -5 teeth per inch Acme thread.
3.1.2 Frame. The frame shall be fabricated of 5/16“diameter steel wire having a tolerance of +/-0.030“. The wire shall be corrosion resistant steel or shall have a galvanized or chrome finish and shall show no evidence of peeling or wrinkling. The frame shall have the handle grip firmly attached. Wire bends shall not have gouges or nicks from the bending processes. The frame shall be arranged to permit mounting the roller cage at 90° (+/-5°) to the handle and to center the roller cage to within 1/2” of the centerline of the handle. The cage shall be retained on the frame by a locking nut, fillister head screw, or equal means. Lateral movement of the frame shall be restricted to 1/8” or less by crimping, or other means that does not materially weaken the frame. The frame size shall be specified in the ordering data.
3.1.3 Cage (Roller mounting assembly).
3.1.3.1 Bearings (end caps). The roller cage bearings or end caps shall be of die cast or extruded nonferrous metal, or they shall be of a molded or extruded plastic having a tensile strength of not less than 2,000 pounds per inch when tested in accordance to ASTM D 638.
3.1.3.2 Roller Mounting Assembly. The end caps shall be assembled to form a cage, with 4 or more wires of not less than 0.12“diameter. The wires shall be of corrosion resistant steel or shall have a galvanized or chromed finish and shall show no evidence of peeling or wrinkling. Washers of corrosion resistant steel or having a galvanized finish shall be used at either end of the cage to prevent excessive wear on the faces of the end caps, and to limit end play of cage to 1/8” or less.
3.2 Type II- Paint Roller Cover.
3.2.1 Cover Design and Construction. Covers shall consist of a pile on a backing as specified for the applicable Class ~d Style. When immersed in Mineral Spirits (Class 1 and 2) or water (Class 2) for one hour, the backing material, cement or core shall not show evidence of volubility to such an extent that the ends of the covers separate more than 1/16“. The cover shall not slip off the cage with an end-wise pull of less than 6 pounds. For pile heights 1/8” up to and including 7/8”, the pile shall be beveled 45°. For pile heights 1” and greater, the bevel shall not be less than 30° nor more than 45° from the end plane to the core. The sheepskin or fabric cover shall be attached to the core by adhesive bonding that shall include end gluing. Staples used in the manufacturing process, for fastening the sheepskin or fabric to the core, shall be removed, The assembled roller cover shall have a minimum bonding strength of 7.5 pounds per linear inch (with the exception of Class 1, Style A shall be 5.0 pounds per linear inch minimum.). All roller covers shall be of the sewed-stocking type.
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