GMW GMW3083 PDF

Note: This commodity standard describes the requirements for engine oil pan and transmission bottom pan gaskets. The constructional and component features covered by this standard are described below. Do not use this document for applications outside the scope and 1.3 descriptions of this standard. 

Material Description. Table 1 describes the Class (A, B, F, or S) for engine (E) and/or transmission (T) elastomers meeting the designated temperature range and application. If no small capital letter is beside a Class, it applies to both engine and transmission. A hardness range for compounds is assigned by type using a numeric or alpha-numeric designation.

Symbols. 

Plastic and rubber parts shall be marked with a symbol to designate the type of material from which the part was fabricated for the purpose of collection and handling of parts for recycling.

Elastomer Marking Symbol. Mark rubber parts weighing more than 200 g per ISO 1629. Marking size and location per SAE J2332.

For Example: Polyacrylate >ACM