SAE J1573 pdf download
SAE J1573 pdf download.(R)OEM Plastic Parts Repair.
1. This SAE Recommended Practice defines the information required to repair the various types of plastics found on modern light-duty highway vehicles. Information is included for the repair and refinishing of most flexible. semi-flexle, and rigid plastic body parts, both interior and exterior. Repair Information is described for all commonly used plastics including polyurethanes, polycarbonate blends, modified polypropylenes, polyethylenes. nylons, sheet-molded compounds (SMC), and fiber•reinfocced plastics (FRP). Repairs can be made to these types of plastics using two-part (2K) repair adhesives, plastic welding, and other materials available from body shop suppliers. When a new type of plastic is being introduced to the market through a new vehicle program, specific repair and refinishing procedures should be provided, following the format in this document.
1.1 Purpose—The use of plastics in cars has increased to over 12% by weight, with several types being used for structural and mechanical applications. Interior and exterior plastic body parts have become an integral part of the automotive design, reducing overall weight to aid in increasing fuel efficiency. The use of plastic compounds for these parts has expanded to include polyurethanes. polycarbonate blends, modified polypropylenes, polyethylenes, nylons, sheet-molding compound (SUC), and fiber-reinforced plastic (FRP). This document is intended to guide vehicle manufacturers, material suppliers, and equipment suppliers in providing timely repair information to repairers and insurers Providing this information poor to vehicle introduction is necessary to allow damaged vehicles to be restored to their pre-acciderit condition.
2. References
2.1 Applicable Publications—The following publications form a part of this specification to the extent specified herein. Unless otherwise indicated, the latest Issue of SAE publications shall apply.
2.1.1 SAE PUBLICATIONS—Available from SAE. 400 Commonwealth Drive, Warrendale, PA 15096.0001.
SAE .J1 344—Marking of Plastic Paris
SAE J237&—New-Vehicle Collision Repair Information
3. Repairability—Determine the severity of damage to each part (Can the part be repaired?). Next determine the cost of the part (Is it worth repairing?). Plastic body parts are either repaired or replaced with new OEM, Aftermarket, or Recycled Parts (Turn in old for a repaired part).
4. Publication Requirements—Requirements should conform to SAE J2376.
5. Technical Contents
5.1 Regardless of the repair method used. refer to the product supplier’s instructions for proper application of the product being used.
5.2 Safely Precautions—Include special warnings and procedures, related to vehicle repair, to avoid personal injury and poperty damage. It is not necessary to include standard industrial safety practices.
5.2.1 PERSONAL Pno’rEcT1o1—Include recommended safety equipment and precautions.
5.2.2 HAZARDOUS MATERIALS—InclUde information on use of Material Safety Data Sheets, handling and disposal.
5.3 Tools and Materials—Include information on recommended tools and materials.
5.4 PlastIc Identification—Include methods of and special procedures for material identification. Examples include consulting manufacturer’s literature: locating ISO codes for plastic type on the back of the part (requires part removal): conducting a ‘loafer test”. or conducting a visual Inspection. Consult SAE J1344 for additional information.
5.5 InspectIon for Damage—Include Information on conducting visual inspections, identifying the type of damage, and determining the appropriate repair procedure (i.e., one-sided versus two-sided repair).
5.6 Pre-Conditlonlng of Pans—Include information on recommended temperature and humidity conditions paris should be brought to before beginning repairs.
5.7 Cleaning—Include Information on recommended cleaning malerials and techniques, including the use of adhesion promoters or surface modifiers.
5.8 Removal of Distortion—Include informallon on recommended equipment and techniques to remove distortions in flexible plastic parts, including hot water, hot-air guns or infrared lamps.
5.9 GrlndlngSandlng—Include information on recommended grits. featheredging techniques, size and shape of V-grooves, size of the area to be ground or sanded adjacent to the damaged area, how to stop running cracks in SMC panels, sanding psi and recommended sanding equipment.
5.10 Surface Preparation—Include information on recommended adhesion promoters or surface modifiers and flame treating.
5.11 Alignment and Clamping—Include information on recommended alignment and clamping techniques.
5.12 Structural Reinforcement—Include information on types of materials, application techniques, recommended sizes, and fabdcation of backing (pyramid) patches and bridging strips.
5.13 Repair Materials—Include information on recommended types of materials, mixing, application tools and techniques, and recommended curing conditions.
5.14 Sanding—Include information on recommended grits, tools and techniques.
5.15 Bonding—Include Information on types of bonding materials, tools, removal of bonded components, surface preparation, and application techniques.
