Ultra 1-NPG gelcoat is suited for a broad range of high-quality, open-mold, lay-up applications including boats/yachts, swimming pools, sanitaryware, sinks, recreational vehicles, commercial/mass transit vehicles and industrial components.
It utilizes a proprietary, low-viscosity, unsaturated polyester resin vehicle containing a high level of neopentyl glycol (NPG). (For an isophthalic, acid-based unsaturated polyester resin vehicle, refer to Ultra Plus-NPG/ISO gelcoat.)
While the relative advantages of NPG- and ISO-based resins vary by application and molder preferences, NPG resin is considered to offer the greatest shelf stability, ease of application and ease of repair. (ISO resin, the greatest chemical and water/osmosis resistance). Please note that characteristics of the base resin can differ significantly from that of the final gelcoat formulation.
Ultra 1-NPG gelcoat offers the complete range of features you require of a high-performance gelcoat. Quality ingredients, together with perfected manufacturing techniques and rigid quality-control standards, optimize every feature:
- Shelf stability
- Easy application
- Color consistency
- Crack resistance
- Flexural strength
- Water/osmosis resistance
- Tear resistance
- Chemical resistance
- UV light stability
- Long-term durability
UNCURED GELCOAT PROPERTIES
(All properties based on 1.5 percent MEKP)
- Gel time @77ºF to your specifications (within parameters required to maintain product integrity)
- Gel to peak.................15-20 minutes
- Viscosity @77ºF (LVF #4 @60 rpm)........2,300-2,900 cps
- Thix index (6/60)...........5.0-6.0
- Weight per gallon...........9.8-10.8 lbs.
- Stability @150ºF...........5 days minimum
- Hegman grind..............5 minimum
- Film cure @77ºF..........40-60 minutes
- Hide @15 mils (wet).....complete
- Coverage....................approx. 80 sq.ft./gal., sprayed @20 mils (wet)
- Patchability..................good (Ferro patch booster recommended)
Typical applications
Marine, sanitaryware, recreational vehicles, and other open-mold, hand, lay-up applications.
Colors
An entire spectrum of custom colors is available on short notice. Using computer spectrophotometry, Ferro can match your color sample, or refer to complete files of OSHA, Munsel, Federal Standard 595 Series or Pantone® matching systems.
All orders are matched to Ferro standards or the retain of your approved custom color, ensuring identical color reproduction from order to order.
