With all the advantages of fiberglass hulls for model rockets the traditional process of production is highly labor-intensive and unsound. Meanwhile, the conversion gave the modelers a new and very interesting material is heat resistant fiberglass gasket STP-4. It is used widely and, having a small official shelf life, often charged and often goes to the shops “Junior technician” or “Do it yourself”.
This fiberglass is good that at thicknesses of 0.025, and 0.10 mm 0,062 it at the factory is impregnated with a sufficient quantity of partially polymerized epoxy resin. In our group developed the technology of manufacturing round parts of similar material, which, hopefully, will be interesting to meet many modelers from other classes (not just rocket).
Work is being done together. First on polished and covered with anti-adhesive mastic mandrel carefully wound of three to four layers of cable paper, which is carefully smoothed. Then the top, keeping the same winding direction as the paper smoothly and tightly wind the fiberglass STP-4. The pattern should exceed 40 — 50 mm of required length tubular parts. Restrictions on the number of layers, here, are guided only by considerations of weight and strength.
With all the advantages of fiberglass hulls for model rockets the traditional process of production is highly labor-intensive and unsound. Meanwhile, the conversion gave the modelers a new and very interesting material is heat resistant fiberglass gasket STP-4. It is used widely and, having a small official shelf life, often charged and often goes to the shops “Junior technician” or “Do it yourself”.