Mercury 15 EFI FourStroke, Service Manual

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1. Sand the entire area to be painted with 3M™ 120 Regalite™ Polycut™ or coarse Scotch‑Brite™ disc or belts.
2. Feather the edges of all broken paint edges. Try not to sand through the primer.
3. Clean the surface to be painted using PPG DX330 Wax and Grease Remover or equivalent (xylene or M.E.K.).
4. If bare metal has been exposed, use Mercury Light Gray Primer.
5. Allow a minimum of one hour dry time and no more than one week before applying the finish coat.
6. Apply the finish coat using Mercury EDP Propeller Black Paint.
Gearcase and Lower Housing Refinishing
!
WARNING
Some cleaners and solvents are flammable. Improper use can result in serious injury or death from fire or explosion. Do not
use flammable cleaners on energized equipment, use in a well‑ventilated area, and keep away from open flames or sources
of ignition.
!
WARNING
Continuous exposure to airborne particles such as chemical vapors, dust, or spray can cause serious injury or death. Ensure
that the work area is properly ventilated and wear protective eyewear, clothing, and respirators.
1. Clean the component to remove all oils, wax, grease, salts, and other marine build‑up with an appropriate marine cleaner.
Wipe the part with a solvent type wax remover, grease remover, or naphtha.
2. If this is a spot repair:
a. Sand the affected area with 180 or 220 grit to remove blisters and coarse pitting, if present.
b. Finish and feather into the surrounding paint with 320 grit either by hand or using dual‑action (DA) equipment. The
original primer should not be sanded through, if it can be avoided.
c. Scuff the entire component with a medium (maroon) Scotch‑Brite™ pad by hand.
3. If refinishing the entire component:
• Media blasting using either a plastic type or soda type media is allowable, provided proper precautions are taken to
prevent grit from entering any mechanisms.
• Complete disassembly and masking prior to media blasting is suggested, with glass media being acceptable in this
case.
4. Treat areas of bare aluminum with Alumiprep® 33, PPG DX‑533, or Metalprep 79. Rinse the area with clean water and
blow dry with clean compressed air.
5. When they are dry, treat the bare aluminum areas with Alodine® 1201™ or PPG DX‑503. Rinse again with clean water and
blow dry with clean compressed air. Masking, if needed, is to be done after this final rinse process, paying special attention
to the masking of anode and ground contact areas.
6. Complete a final wipe with a wax and grease remover or naphtha. Lightly remove dust with a tack rag.
7. Prime the bare aluminum areas with Stits EP‑420 (green) epoxy primer, mixed with Stits EP‑430 catalyst and Stits E‑500
reducer, per the manufacturer's mixing and application directions. PTI PT‑573 or Randolph Rand‑O‑Plate are acceptable
substitutes. Apply two medium wet coats, allowing 20 minutes between. If the topcoat color is Verado Silver, PPG Omni™
MP170 gray epoxy should be applied as a second (intermediate) primer for color match and scratch hiding on gearcases.
8. After it has cured for 24 hours, the primer may be scuffed lightly with a medium (maroon) Scotch‑Brite™ pad to feather the
edge of the spray into surrounding paint and to promote adhesion. Do not penetrate the primer. Wait no more than four
days before topcoating.
9. Topcoat with Stits Aerothane color code 215 for Mercury Phantom Black. Use Stits Catalyst U‑865 and UE‑820 Urethane
Reducer per manufacturer's mixing and application directions. PPG Omni™ MTK9300 is an acceptable substitute. Apply
two medium wet coats, allowing 15 minutes between. Allow to cure for 24 hours before handling.
NOTE: Other PPG topcoat colors are: DU34334 Mariner Silver, DU35466 Force Charcoal, and DU33414M Sea Ray White.
Use PPG DU5 catalyst and reduce per manufacturer's current technical information.
Cowl Refinishing
!
WARNING
Some cleaners and solvents are flammable. Improper use can result in serious injury or death from fire or explosion. Do not
use flammable cleaners on energized equipment, use in a well‑ventilated area, and keep away from open flames or sources
of ignition.
General Information
90-8M0125265 eng NOVEMBER 2017 © 2018 Mercury Marine Page 1C-13