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Diagram of spray-up process. Spray-Up also known as chop method of creating fiberglass objects by spraying short strands of glass out of a pneumatic gun. This method is used often when one side of the finished product is not seen, or when large quantities of a product must be made cheaply and quickly with moderate strength requirements. [1]
Start by applying the epoxy to the fiberglass sheet. Continue carefully but quickly until all areas are sufficiently covered by the epoxy. Next, start at one end of the material to be strengthened and stick the epoxy covered fiberglass to the material, being sure to smooth out any bubbles that may form between the material and fiberglass.
The basic idea is to capture a 'floating' panel within a sturdy frame, as opposed to techniques used in making a slab solid wood cabinet door or drawer front, the door is constructed of several solid wood pieces running in a vertical or horizontal direction [1] with exposed endgrains. Usually, the panel is not glued to the frame but is left to ...
Once the release agent and gelcoat are applied, layers of fiberglass and resin are laid-up onto the surface. The fiberglass used will typically be identical to that which will be used in the final product. In the laying-up process, a layer of fiberglass mat is applied, and resin is applied over it. A special roller is then used to remove air ...
Advanced manufacturing techniques such as pre-pregs and fiber rovings extend fiberglass's applications and the tensile strength possible with fiber-reinforced plastics. Fiberglass is also used in the telecommunications industry for shrouding antennas, due to its RF permeability and low signal attenuation properties.
After evaluating the extent of the damage, the damage zone is prepared for reparation. This is done by removing the composite material around the damage zone 1. Three techniques are known to be utilized, being slightly different depending on the nature of the composite, as shown in Figure 4. Figure 4: Typical laminate and sandwich repairs
Exterior insulation and finish system (EIFS) is a general class of non-load bearing building cladding systems that provides exterior walls with an insulated, water-resistant, finished surface in an integrated composite material system. EIFS has been in use since the 1960s in North America and was first used on masonry buildings.
This is a more general layup for the production of cowlings, doors, radomes or non-structural parts. Open- and closed-cell-structured foams like polyvinyl chloride, polyurethane, polyethylene, or polystyrene foams, balsa wood, syntactic foams, and honeycombs are generally utilized core materials.
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