Quickie Q2 Lite Construction Manual - page 46
GLASS LAYUP
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The glass layup techniques used in your Q2 have been
specifically developed to minimize the difficulty that glass workers
have traditionally endured. The layups that you will do will be on a
flat horizontal surface without the molds, vacuum bags, and other
special equipment that are common in glass work. The layups that you
do will all cure at room temperature; no ovens or special heating is
required. If you have suffered through a project that requires you to
build more molds and tools than airplane components, then you are in
for a real treat.
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The techniques that you will use are quick but they still need to
be done correctly. 90% of the work that you will do is covered in the
next few paragraphs so make sure that you read and understand this
section very well. If you learn these basics, your airplane will be
easy. If you skip over this information, you will probably end up
frustrated.
STEP 1: PERSONAL PREPARATION
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Before you get started with a layup, plan ahead. Some major
layups take several hours and before getting your hands in the epoxy,
it's a good idea to make a pit stop at the restroom.
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Do not start a large layup if tired; get some rest and do it when
fresh. It's best to have three people for any large layup; two
laminators and one person to mix epoxy. Be sure that the shop is clean
before you start.
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Take the recommended health precautions (discussed later in
detail) using gloves or barrier skin cream. Get your grubby, old
clothes on or at least a shop apron. Make sure that your tools are
clean from the last layup and ready to use. Your working area should
be between 7O°F and 90°. Best results are obtained at 75 to BO°F.
Below 7O°F the epoxy is thicker making it more difficult to wet the
cloth. Above 90°F, the possibility of an exotherm is greater.
STEP 2: CUT FIBERGLASS CLOTH
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The fine points of glass cutting have been covered earlier.
Remember that there isn't any requirement to cut accurate dimensions.
Cloth dimensions are given well oversize. You scissor trim them as you
go, while laying the cloth up. It is a good idea to keep two pair of
scissors: one clean and in the glass storage area, and one in the shop
that gets epoxy on it. After cutting, roll or fold the material; keep
it clean and handy for the layup.
STEP 3: PREPARE SURFACE
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The only difference between 1ayups over different materials is
in surface preparation. The layup over foam will be covered here since
you will be doing more of it, and other surface preparations will be
covered separately.
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The foam surface is prepared by leveling uneven areas with a
sanding block and brushing or blowing any dust off the surface. Use
compressed air or vacuum to remove dust.
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Now is the time to accurately check that the foam core is the
correct size, shape and contour. Refer to the section views of the