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At the forthcoming JEC Composites 2011 show in Paris from 29-31st March, Scott Bader is launching its latest innovative development, Crystic Permabright.
This high performance gelcoat uses technology which is claimed sets a new standard for long term UV weathering performance by providing significantly improved colour stability. Experts from Scott Bader will also be making three technical presentations during the show, including one on their new unsaturated polyester gelcoat weathering performance technology. The other presentations will cover recent advances in fire retardant systems, focusing on urethane acrylates and intumescent technology, with another covering the bonding of composites, plastics and metals with methyl methacrylate (MMA) adhesives.
Scott Bader will have on their stand (H46) the new Crystic Permabright spray and brush gelcoats along with other innovative new products in their specialty products range: closed mould and pultrusion Crestapol resins, Crestabond structural adhesives, plus low smoke fire retardant (FR) gelcoats and laminate systems with test approvals for a variety of building and land transportation applications from Epiradeatuer NFP/ NFF, DIN; ASTM and CEN TS 45545-2 (Firestarr HL2) standards.
Scot Bader say that key composites markets can benefit from the significantly enhanced weathering performance that Crystic Permabright gelcoat provides, including marine, building, wind energy and land transportation, and any FRP composite parts where retaining a high level of aesthetic quality in exposed gelcoated surfaces is critical.
The comparative long term UV weather performance data for Crystic Permabright gelcoat against best in class ISO and ISO/NPG gelcoats has come from accelerated QUV and Xenon testing and 12 months of Florida exposure. When comparing the delta-E colour change to even the best performing white ISO/NPG competitor gelcoat, Scott Bader says that the new technology gelcoat outperforms it by over 40%. This means that even after 12 months exposure to the harsh conditions in Florida, it is very difficult to detect any colour change to Crystic Permabright with the naked eye.
Scott Bader has also technically approved Crystic Permabright for use below the water line (as part of a Crystic marine laminate system with their VE 679PA skincoat) as the water uptake is very low and it is osmosis resistant (blistering tests in de-ionised water at 40C for 12 months carried out).
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