Boston Whaler 37 Justice Series, Руководство по эксплуатации и техническому обслуживанию, Страница: 185 / 214

6-7
Maintenance Section 6
Drains & Scup p ers
Check all compartment drains, scuppers, and bilge
discharge drains at least once a month. Inspect for gaps
in sealant, tightness, cracks, and damage. Inspect
scupper aps for deterioration. If any drains or thru hull
fittings are damaged, have them serviced or replaced
immediately.
Failure to properly maintain thru hull ttings
might lead to serious hull damage and could void
p ortions of your hull warranty.
H ull Blistering
The chemical and physical structure of all fiberglass
boats is somewhat porous. Water can permeate through
gelcoat and fiberglass during long periods of immersion
in water. This process is referred to as hydrolysis.
The effect of hydrolysis over time allows water to enter
the gelcoat and substrate, forming a blister. Blistering
is caused by the deterioration of certain water soluble
materials in the hull laminate. Blisters can form in near
surface layers of gelcoat or very deep in the fiberglass
substrate.
The damage can range from cosmetic to structural,
although structural damage is a rare occurrence. Studies
point to long term immersion of a boat in warm water as
a primary cause of hull blisters. Stress cracks on the hull
below the waterline can also contribute to the formation
of blisters.
CAUTION