NOTE: If seams are located in hard-to-reach places, apply a paste sealant to such joints during assembly or installation of parts. Some joints become inaccessible after repair is completed. In such cases, apply seam sealant and paint before final assembly.
The joint sealant is applied over the primer but before the top coat of paint is applied. The joint sealant should form a continuous bead, the profile of which depends on the type of joint. If the sealant is applied with a brush, be especially careful that the entire surface of the joint is treated.
Ensure that all accessible repair welds are sealed after repair. When body damage occurs, the components located far from the point of impact are often subject to deformation. As a result, the sealant coating in these areas may be damaged during subsequent panel stretching and repair. Inspect all welds in areas near the components being repaired for damage to the coating, then remove damaged or cracked coating and apply fresh coating according to the following procedure:
- Clean the damaged area of the coating and etch the cleaned metal surface with a suitable phosphate primer.
- Treat the damaged surface with an acid primer.
- Apply appropriate seam sealant.
- Apply the appropriate paint coat (and a coat of underbody sealant if necessary).
If possible, sealant should be applied to both sides of the repaired weld. If the weld is only accessible from one side (as in box section welding), treat the closed cavity with a closed cavity sealant.
The material was taken from a website LRman.ru
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