RTV Sealing Surface Cleaning and Preparation
WARNING: This page is about a different car, the 2017 Lincoln Navigator and 2017 Ford Expedition. However, it is still accessible from the selected car via links, so may be relevant.
General Equipment
| Plastic Scraper |
Material
| Item | Specification |
| Motorcraft ® Silicone Gasket Remover ZC-30-A | - |
| Motorcraft ® Brake Parts Cleaner PM-4-A (US); CPM-4 (Canada) | - |
| Motorcraft ® Metal Surface Prep ZC-31-B | - |
NOTE:
Place clean, lint-free towels over exposed cavities. Carefully remove the towels so foreign material is not dropped into the cavities. Any foreign material (including any material created while cleaning surfaces) that enters the fluid passages, may cause failure.
NOTE:
Do not use metal scrapers, wire brushes, power abrasive discs, or other abrasive means to clean sealing surfaces. These tools cause scratches and gouges which make leak paths.
- 3.
Use a lint-free towel and plastic scraper to remove any remaining sealant. A second application of Silicone Gasket Remover may be required.
- 4.
Clean the surface with Motorcraft ® Metal Brake Parts Cleaner PM-4-A or PM-4-B to remove all residual sealant and oil.
- 5.NOTE: Motorcraft ® ZC-31B Metal Surface Prep Wipes is a pre-saturated disposable wipe to be used as a final step in surface preparation. It creates a conversion coating providing an improved base for RTV sealing. The wipe is a dry-in-place application and does not require rinsing.NOTE: Discard wipe after a single use.
Prep the surface with Motorcraft ® ZC-31B Metal Surface Prep Wipes. All surfaces that are to be sealed with RTV are to be wiped. Make sure the surface is moistened with the fluid.