Fiberglass reinforced plastic products having increased weatherability, system and method
View Patent ↗Climbing products containing rails decorated using veil products colored, patterned, painted or in combination with marking methods such as company names and logos and resin formulation designed to withstand exposure to UV radiation with minimal change in appearance which create specific appearances for applications, enhance weathering performance, and facilitate processing efficiency. A combination of a filler free resin and coated veil systems to create a synergistic weather resistance surface with self contained color, pattern, picture, logo or combination of said same for climbing products. A system for producing components. Various methods, system, a ladder rail.
1. A method for producing ladder rails comprising the steps of:
feeding unimpregnated reinforcing materials through a prewetting impregnator where resin with filler is employed to form a donor assembly;
applying additional unimpregnated reinforcing material and a veil with differing graphics thereon in controlled positions around the perimeter of the donor assembly to form a stacked preform;
continuously pultruding the stacked preform and introducing clear resin without filler in a pultrusion die, where the clear resin and the resin with filler are maintained in specific cross-sectional areas in parts by creating desired mass flow conditions in the parts while pultruding the parts;
forming the rails from the parts; and
connecting the rails with steps.
2. The method of claim 1 wherein each rail has:
a web having a graphic;
a first flange extending from the web; and
a second flange extending from the web, the web and first and second flanges made of fiberglass and resin and together forming the rail.
3. The method of claim 2 wherein the web and first and second flanges made of fiberglass and resin and together forming the rail having a delta E less than 20 with a 60 degree gloss, as measured by a hunter gloss meter, of greater than 70 after 1000 hours of accelerated weathering in a QUV chamber using bulb A with an ASTM G154 cycle 4 with the web and first and second flanges having an outer coating of clear resin.