Cons truction Details C ont'd .
2.5-2
Production Control Cont*d.
blister resistance. Proper catalisation, thickness, and low porosity-
are key in producing a finish that will best resist the osmotic
passage of moisture. Control of catalization is also very important
for weatherability. Barcol hardness testers are used to check the
relative cure of both resins and gelcoats.
Assembly;
Major structural framing and bulkheading are glassed to the hull
and deck using non-woven biaxial .glass fabric. This provides for an
integral bond-between the hull, deck and frames.
By using both mechanical and adhesive fastenings, hull to deck
joints of reliable integrity are achieved. Glass thicknesses are
increased in the hull and deck flanges which are joined together primarily
with through-bolts, capable of handling the high local stresses that
are produced as loads are transmitted through the hull and deck.
Before bolting, 3M-52Q0 high strength urethane adhesive sealants
are applied to the flanges to totally seal the joint. This combination
of bolting and bonding with 5200 creates an unusually strong water-
tight hull to deck joint.
All internal and external hardware connections are engineered
individually for long lasting integrity. Backing plates are designed as
required for all deck hardware as well as additional laminate backups to
ensure reliable hardware fastenings.'
Through hull fittings are engineered using the highest quality
bronze and glass reinforced nylon fittings available. Each metal
fitting is individually grounded to protect against galvanic
corrosion. 5200 sealant is used to create a watertight seal. All
hull core is terminated several inches from the through hull fitting
To Next Page
Loading...