Fiat 500 Collision Awareness Manual page 46

46 COLLISION INFORMATION
Application
• Weld bonding is the STRSW welding process utilizing structural adhesive between the panels that are resistance
welded together. The adhesive creates a very stiff structure, while the welding eliminates concerns of the adhesives'
peel strength.
• Additionally, the adhesive acts as a sealer and provides a high level of corrosion protection.
Sealers and Adhesives
• Sealers are materials placed on top of a seam to control water and air intrusion.
• Adhesives, providing structural improvements, are found between panels welded together. Adhesives also provide
the qualities of sealers when applied correctly.
• The Chrysler Group LLC. recommendation is to replace any suspected adhesive with a two­component, corrosion
inhibiting structural adhesive when any repairs are made, providing the STRSW process is applicable. The structural
adhesive must meet or exceed Chrysler Group LLC. MS CD507
Test Weld Coupon
NOTE: Periodically check the electrodes tips to determine weather the faces have been contaminated, damaged
or increased in size. If any of these conditions have occurred, replace or re­face the electrode tips per equipment
manufacturer recommendations.
Fig. 19 Weld Coupon
1 ­ FIRST WELD TOWARD END OF COUPON, AT LEAST 12.5mm.
(0.5in.) FROM ANY EDGE
2 ­ DISTANCE MUST EQUAL THE SPACING FROM THE REPAIR
WELD TO THE CLOSEST EXISTING WELD ON THE VEHICLE
3 ­ TEST THE SECOND WELD BY PEELING APART IN DIRECTION
SHOWN (USING PLIERS OR EQUIVALENT
4 ­ STRUCTURAL ADHESIVE
5 ­ APPROXIMATELY 13mm. (0.5in.)
6 ­ APPROXIMATELY 100mm. (4in.)
7 ­ APPROXIMATELY 25mm. (1in.)
2012 FF