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| Boat
hull scratches
For scratches
in gelcoat up to 1/32 of an inch deep - Try sanding
them out first with a hard rubber block using
320 grit water sand paper followed by 800 and
1000.
Wash block, sand paper and job between grits.
Don't stay in one spot too long during sanding
to avoid a dip, work the area as well. Keep a
close eye to make sure you don't sand through.
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Polishing - Michigan Fiberglass
Recommends:
Polish
gelcoat with Tuff-Stuff ® Rapid Cut Compound
for first polish followed by GlossMaster Polish
for a brilliant shine using an adjustable polisher
with speeds up to 2400 rpms. Be sure to use a
white wool polish pad for first cut then a finer
yellow wool pad for final GlossMaster to finish.
Be sure to wash off the Tuff-Stuff before applying
the GlossMaster with the yellow pad, avoiding
grit contamination.
Finish with a final coat of Diamond Luster Wax.
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Aqua-Buff® Tuff-Stuff®
Rapid Cut Compound
Aqua-Buff®
GlossMaster®
Polish
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If sanding
gelcoat scratches on true colors as red, blue, green
etc. sand a small area first in a discreet area
to be sure there is not a big change in color due
to fading.
Do not remove dry compound with polisher, running
a dry pad will create wheel marks. |
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| Deep
Scratches
Simply roughing
up the inside of a scratch and filling it with a
gelcoat paste then a sand and polish will be quite
visible around the edge of the scratch and will
shrink during polishing, the same goes for chips
and air voids. A gelcoat patch kit may be a quick
fix but may be very noticeable on your boat hull.
If you are looking for a professional boat repair,
a fill and spray is the technique needed to achieve
that as shown in this fiberglass and gelcoat repair
video.
Scratches in true color red, blue, green, black
and so on are tough even for the professional and
usually have to be matched and sprayed to a large
area to blend using clear gelcoat for a blender.
Gelcoat patch kits are a very noticeable fix on
true colors.
Some outfits match polyurethane paints like Imron
for spot repair because it is easier to match and
blend, the problem is the paint will eventually
peel around the edges and eventually all the paint
will peel off, avoid painting directly over gelcoat.
Any paint products and clears will flake off maybe
sooner than later if gelcoat is not primed first.
Gelcoat will stick to gelcoat best for spot repairs.
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Michigan
Fiberglass can blend any color Gelcoat.
Send us a chip of the Gelcoat and our lab will match
it. |
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