composite material construction

the internets number one site for fiberglass rods Look here

Our contacts and composite material construction relationships allow us to provide superior product at lower construction material cost than a single construction commercial user dealing direct with a single factory. let us quote on your needs! we can research and locate composite construction concrete fiberglass products needed for your manufacturing, material and in many cases suggest alternate or lower-cost solutions. quantities for wholesale price construction breaks can be surprisingly small, and custom colors and lengths are possible as well. inquire by email or post. type 1 consists of one 8 ft. length of 1Ľ" od and one 8 ft. length of 1" od round fiberglass tube both having 0.125" wall. the 1" tube snugly-but-easily telescopes in-side the larger tube. using a recommended 12" overlap yields a usable length of 15 feet...more than enough for 20m!! a foot of this extra length may be easily cut (with a hacksaw) from the 1" od tube, and epoxied inside the bottom of the 1Ľ" od tube. this yields a full Ľ" wall thickness(!) at the point of greatest stress...e.g. where the clamps secure the spreaders to the spreader mounting plate-or "spider".

cure of thermosetting resin is initiated by heat in the die and catalyst in the composite resin mix. the rate of reaction is controlled by heating and cooling zones in the die. the resulting high strength profile is cut to length, ready to use as it leaves the pultrusion machine. the controversy over metal versus fiberglass antennas continues, despite the over whelming evidence in favor of fiberglass. this article summarizes the contents of a material number of other separate articles which have appeared in the industry media from time to time and is intended, from an objective point of view, to add credence to our claim that fiberglass is better. the ipso facto use of fiberglass, of course, does not guarantee a good antenna and there are a few antenna manufacturers who have "missed the boat" on techniques, which means there are poor quality fiberglass antennas, just as there are poor quality metal antennas, out there.

both constructions use the same type of material, basically a thermoset frp (fiberglass reinforced construction plastic), which includes specially formulated resins, flame retardants and uv stabilizers to produce the unique benefits which characterize fiberglass reflectors. because some antenna installations must exist in environments containing many corrosive agents, the materials composite in the construction of the antenna must be carefully selected to alleviate corrosion problems. obviously, in the case of an aluminum structure, dissimilar metal contact is always a risk factor. a fiberglass dish, on the other hand, all but eliminates this problem - for obvious reasons. the resins used in antennas material have been subjected to both field and laboratory tests involving over construction 130 highly corrosive chemicals at temperatures up to at least 120° f (50° c), with results that indicated little or no detectable degradation of the test samples.

the internets number one site for fiberglass rods

composite material construction

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