Quickie Q2 Lite, Construction Manual

Page: 81 / 299

3.2 LEAN AREAS
..... Areas where the epoxy/glass matrix is incomplete because of
inadequate wetting of the cloth with epoxy (lean areas) are speckled
whitish in appearance. The fully wetted laminate will have a
consistent transparent greenish appearance. Epoxy lean areas are
acceptable, as long as the white speckled area is less than 10% of
the surface area. White to green ratios greater than 10% require
rejection or repair as shown in paragraph 4.
3.3 RICH AREAS.
..... Resin richness primarily adds weight to the laminate. While
some degradation of physical properties does occur, a overly wet
(rich) layup is not grounds for rejection.
3.4 INCLUSIONS
..... Bristle paint brushes are used throughout the layup process. As
a brush begins to deteriorate it will shed some bristles into the
laminate. The bristle inclusions, up to 20 bristles per square foot,
are not cause for rejection. Occasional inclusion of small wood chips
or other small foreign objects is not grounds for rejection.
3.5 FIBER DISRUPTION
..... In all instances, it is good practice to have the glass fibers
lying flat and without wrinkles. Major wrinkles or bumps along more
than 2 inches of chord are cause for rejection in the wings, canard,
and vertical fin, particularly on the upper surfaces (compression
side). Disruptions greater than 2 inches require repairs per
paragraph 4.
3.6 FINISHING DAMAGE
..... Damage to the external structure by sanding in preparation for
surface fill and paint can occur. Occasional sanding through the
weave of the first skin ply is not grounds for rejection. Sanding
through areas greater than 2 inches in diameter completely through
the first ply or any damage to interior plies must be repaired in
accordance with paragraph 4. A damp rag passed over the sanded
surface will make the plies show up to determine how many plies have
been sanded away.
3.7 SERVICE DAMAGE
..... Damage to the glass structure will be evidenced by cracked
paint, or "brooming" of glass fibers. Both of these indicators are
clearly visible. If either type of indication is present, the paint
and filler should be sanded away, bare laminate inspected, and
repairs made per paragraph 4 as required. Where surface damage has
occurred it is also likely that local foam crushing has been
inflicted.
3.8 DELAMINATIONS
.... Delamination of glass/epoxy lap joints is evidenced by physical
separation of plies. These defects are easily visible and easily