J/80 Owner Guide 13
Copyright
©
J/Boats, Inc., 2007
J/80 Construction
The J/80 is built by Pearson Composites, LLC. in Warren, Rhode Island. Pearson is
America's most qualified and advanced builder in fiberglass yacht construction.
Pearson’s extensive staff of craftsmen, engineers, production specialists and quality
inspectors ensure that each yacht is carefully built and thoroughly inspected. Pearson is
further distinguished by the development of the patented "SCRIMP" resin infusion
molding technique and a 10 year hull warranty against blistering.
Construction Materials
The techniques developed for constructing the J/80 are the most advanced in the
marine industry. Patented SCRIMP
®
molding technique insures the best quality
laminate for the hull and deck. The finely engineered laminate is tailored to suit
structural requirements without unnecessary duplication.
Pearson utilizes only the highest quality construction materials, which undergo constant
testing at their laboratory to ensure they meet stringent construction specifications
Gelcoat:
The J/80 moldings use a
neo pentyl glycol (NPG) isophthalic gelcoat.
NPG
ISO gelcoats yield a dense frequently branched molecular network which inhibits
migration of water molecules. Because of the structure, these gelcoats offer superior
resistance to moisture penetration, blistering, and fading. The product is formulated to
"yield" more than other gelcoats and provides more "flexibility" to improve cracking
resistance. Testing also indicates that NPG ISO GELCOATS produce the highest gloss
and the best color retention under harsh exposure.
Glass Fabrics:
Unidirectional, bi-axial, and tri-axial fibers are used throughout the J/80
hull and deck. This offers superior strength and stiffness to conventional cloth and
woven roving laminates. These unidirectional fibers are oriented in the laminate
structures along lines of stress for optimized hull/deck strength and stiffness.
Resins:
Resins are chemically formulated to Pearson’s exacting specifications to
incorporate the best balance of properties based on extensive testing. For the hull, a
special vinylester resin is used as a barrier coat behind the gelcoat to prevent moisture
penetration. The combination of this vinylester resin with NPG ISO gelcoats and
properly specified glass fibers yields the most blister resistant hull in the industry. The
J/80 hull has a 10 year owner transferable warranty against blistering.
Hull/Deck Sandwich Construction
Pearson utilizes Baltek balsa-cored fiberglass
construction in the J/80 hull and deck to produce a lighter, stronger and faster yacht.
Cored fiberglass is superior to single skin fiberglass construction because, for the same
strength, a balsa cored structure can be as much as 60 percent lighter. Of all synthetic
foam and natural core material available, end grain balsa is the toughest against
fatigue, and rates highest in sheer strength as well as impact and puncture resistance.
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