A-A-52518
3.4.5 Commercial tire, tread rubber ozone resistance. Tread rubber used for commercial tires shall contain antioxidants and antiozonants of a quality to provide standard commercial resistance to weathering.
3.4.6 Military tire, tread ozone resistance. Tread rubber used for retreading nondirectional military tires shall be ozone resistant.
3.4.7 Strip form stock (class A-3). Strip from stock shall be suitable for a hot tread application process.
3.4.8 Cold wind stock (class A-4). Cold wind stock shall be 98.4 + 3.2 mm wide. by 4.0 + 0.8 mm thick, with tapered edges 6.4 to 12.7 mm wide. The stock shall have a tacky surface protected with polyethylene backing 140 mm wide. The cold wind stock and backing shall be spirally wound on to a 127 mm wide, 76.2 inside diameter (minimum) spool until the outside diameter of the roll is 508 to 610 mm. The spool shall be easy to remove from the roll. The compound used to formulate cold wind stock shall be in accordance with table II.
3.4.9 Relugging stock class G. Relugging stock shall be unvulcanized tread rubber capable of being applied to a prepared tire casing. Lug application and tread design shall be in the form of continuous chevrons used for off road service. After proper vulcanization, the tire shall meet the requirements of the off road tire compounds of table II.
3.4.10 Low temperature properties. When required, tire retreading materials for military ground vehicle tires shall meet the cold brittleness requirements of ASTM D746 at -54°C.
3.4.11 Shelf life. Tire reconditioning materials shall meet their intended requirements for a minimum period of 6 months after date of manufacture at which time they shall show no more than a light sulphur or antiozonant bloom.
3.4.12 Storage stability cushion, or splice gum. Repair gum, and shoulder strips for procured tread. Such materials shall meet their intended requirements for a minimum of 3 months after date of manufacture.
3.4.13 Splices. Splicing material shall be of class F unvulcanizing gum rubber compound.
3.4.14 Backing. An embossed or unembossed untreated, medium slip, normal strength polyethylene (clear or transparent film may be used) backing of not less than 0.08 mm thickness shall be processed on all tire retreading and tire repair materials except strip form stock tread rubber and chemical cure patches.
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business