CONSTRUCTION DETAILS
2.5
The technology we use for designing and constructing our boats is
the most advanced in the marine industry. Only top quality, top
performance materials which are thoroughly tested in our own lab
are used.
Materials:
1. A l l f r ee d om s u t il i z e G l i d d e n N eo P en t yl G l y c o l (NPG)
Isophth'alic Gelcoat. NPG Iso Gelcoats yield a denser,
more frequently branched molecular network which inhibits
migration of water molecules. Because of their structure,
NPG Iso Gelcoats offer superior resistance
to moisture penetration, blistering and fading. They are
formulated to yield slightly more flexibility than most
gelcoats which aids in resisting cracking. Testing also
indicates that Glidden NPG Iso Gelcoats produce the highest
gloss and retain it through environmental exposure.
2. High performance glass fabrics are used throughout the sand-
wich laminate. They offer superior strength and stiffness
when compared to conventional cloth and woven roving materials
used by many other builders. Unidirectional fabrics require
less resin and therefore produce stronger structures without
excess weight. The fibers can also be oriented to yield
maximum hull and deck strength and stiffness.
3. The resins used by Tillotson-Pearson are properly engineered
to incorporate the correct balance of properties based on
required performance. A special vinyl ester resin is used
as a barrier coat behind the aelcoat to arrest moisture
penetration. By arresting moisture permeation blistering
cannot occur.
This vinyl ester in combination with Glidden NPG Iso Gelcoats
and properly specified fibers generate the most blister
resistant hull available today. The vinyl ester used by
Tillotson-Pearson is also resilient like the gelcoat to
further aid in crack resistance.
A high quality polyester resin is used to complete the rest of
the laminate. Again the correct balance of properties are
designed into the resin to assure resistance to cracking and
fatique. These designed-in properties assure that high
strength and stiffness will be retailed throughout the life of
your vessel.
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