Canadian Yachting May 2020 - 53

thicknesses of the fiberglass and resin layers, the difference in
materials used, and the reliability of the device. Two more
reliable methods can be used along with a moisture meter to
determine the damage: the use of percussive testing (knocking
on the hull surface to see where the fiberglass layers have
separated from the core material), and drilling small pilot holes
to see and feel moisture in core samples.
DETERMINE THE BEST APPROACH
Most of us appreciate the aesthetics of a seamless repair that isn't
a glaring eyesore once completed. Sometimes its possible to work
from the underside of the deck, or perhaps to work along the seams
of non-skid deck areas. The entire repair should be evaluated from
the perspective of how things might look once completed.
CUT INTO THE FIBERGLASS AND
REMOVE THE ROTTEN CORE
The outer fiberglass layer should be cut away to expose the damaged core. It will need to be cut back beyond the damage to clean
and dry core, with enough area exposed to chamfer and lay up
new fiberglass in later steps
REMOVE ANY ADJACENT
HARDWARE AND SEALANT
These will only get in the way as the repair unfolds, and the hardware should be re-installed and re-bedded once the repair is
completed.

REPLACE THE CORE
The inner surface of the fiberglass should be prepped by sanding/scuffing, cleaning with acetone and laying new resin to allow
the replacement core to adhere. Be sure to match the core type
and thickness with the original.
LAY-UP NEW FIBERGLASS
The edges of the repair area should be chamfered appropriately.
Once the core is layed in place, wet it out thoroughly and lay-up
new layers of fiberglass. Once cured, use a filling/fairing compound to match the curvature and shape of the surrounding deck.
ROLL OR SPRAY NEW GELCOAT
Once the deck repair is faired and smooth, apply a fresh coat of
gelcoat 0.5-1mm thick. Once cured, wet-sand and polish. If nonskid areas need to be repaired, use an appropriate mould or
granular additive to match the surrounding finish.
REPLACE HARDWARE AND
SEAL APPROPRIATELY.
Any hardware that was removed should be replaced and bedded
appropriately
As you can see - it's simple to write a few step-by-step procedures. It's another thing to affect a quality repair. With a confident
skill-level in the use of fiberglass products, this can be a do-ityourself project. That said, for someone less confident, hiring a
repair tech may be a logical part of the planning process. *
w w w. c a n a d i a n y a c h t i n g . c a

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http://www.canadianyachting.ca

Canadian Yachting May 2020

Table of Contents for the Digital Edition of Canadian Yachting May 2020

At the Helm: Uncharted Waters
Marina Yacht Club: Krates Marina, Keswick
Special Feature: Eye Care - Beware of What You Cannot See
Special Feature: Anchoring - Science, Art and Experience
Power Review: Greenline 33 Hybrid
Sail Review: Beneteau 30.1
The Port Hole: May 2020
DIY/Maintenance: Cored Deck Repair
Crossing the Line: Kjallarinn
Canadian Yachting May 2020 - Intro
Canadian Yachting May 2020 - Cover1
Canadian Yachting May 2020 - Cover2
Canadian Yachting May 2020 - At the Helm: Uncharted Waters
Canadian Yachting May 2020 - 4
Canadian Yachting May 2020 - 5
Canadian Yachting May 2020 - Marina Yacht Club: Krates Marina, Keswick
Canadian Yachting May 2020 - 7
Canadian Yachting May 2020 - 8
Canadian Yachting May 2020 - 9
Canadian Yachting May 2020 - Special Feature: Eye Care - Beware of What You Cannot See
Canadian Yachting May 2020 - 11
Canadian Yachting May 2020 - 12
Canadian Yachting May 2020 - 13
Canadian Yachting May 2020 - 14
Canadian Yachting May 2020 - 15
Canadian Yachting May 2020 - Special Feature: Anchoring - Science, Art and Experience
Canadian Yachting May 2020 - 17
Canadian Yachting May 2020 - 18
Canadian Yachting May 2020 - 19
Canadian Yachting May 2020 - 20
Canadian Yachting May 2020 - Power Review: Greenline 33 Hybrid
Canadian Yachting May 2020 - 22
Canadian Yachting May 2020 - 23
Canadian Yachting May 2020 - 24
Canadian Yachting May 2020 - 25
Canadian Yachting May 2020 - Sail Review: Beneteau 30.1
Canadian Yachting May 2020 - 27
Canadian Yachting May 2020 - 28
Canadian Yachting May 2020 - 29
Canadian Yachting May 2020 - 30
Canadian Yachting May 2020 - The Port Hole: May 2020
Canadian Yachting May 2020 - 32
Canadian Yachting May 2020 - 33
Canadian Yachting May 2020 - 34
Canadian Yachting May 2020 - 35
Canadian Yachting May 2020 - 36
Canadian Yachting May 2020 - 37
Canadian Yachting May 2020 - 38
Canadian Yachting May 2020 - 39
Canadian Yachting May 2020 - 40
Canadian Yachting May 2020 - 41
Canadian Yachting May 2020 - 42
Canadian Yachting May 2020 - 43
Canadian Yachting May 2020 - 44
Canadian Yachting May 2020 - 45
Canadian Yachting May 2020 - 46
Canadian Yachting May 2020 - 47
Canadian Yachting May 2020 - 48
Canadian Yachting May 2020 - 49
Canadian Yachting May 2020 - 50
Canadian Yachting May 2020 - 51
Canadian Yachting May 2020 - DIY/Maintenance: Cored Deck Repair
Canadian Yachting May 2020 - 53
Canadian Yachting May 2020 - 54
Canadian Yachting May 2020 - 55
Canadian Yachting May 2020 - 56
Canadian Yachting May 2020 - 57
Canadian Yachting May 2020 - 58
Canadian Yachting May 2020 - 59
Canadian Yachting May 2020 - 60
Canadian Yachting May 2020 - 61
Canadian Yachting May 2020 - Crossing the Line: Kjallarinn
Canadian Yachting May 2020 - Cover3
Canadian Yachting May 2020 - Cover4
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