CIRRUS DESIGN CAPS, Component Manual

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12128-001
95-01
Page 17 15 Sept 2002
Note: Foam tape should be same height as fuselage. It may be necessary to build
up tape in sections where tape to fuselage height is not equal.
(i) Offset and apply foam tape 0.50 +/- 0.13 inches (1.27 cm +/- 0.33 cm) around inside
perimeter of CAPS enclosure flange.
(j) Mix adhesive components in the following manner:
Note: Pot life of adhesive at 70.0° F (21.1° C) is approximately 35 to 45 minutes.
CAUTION: Thorough mixing is essential to achieve a proper cure. Mix components until
a homogeneous appearance is achieved. Ensure incorporation of all materi-
als along walls and bottom of mixing cup.
WARNING: Do not mix modifier (Heloxy 68) directly into hardener (Epicure 3234),
as violent chemical reaction may occur.
Keep adhesive materials away from sources of ignition.
Mix and use adhesive materials only in areas with adequate ventila-
tion.
Wear protective gloves, goggles, and respirator when handling adhe-
sives and solvents.
1 Zero scale.
2 Place mixing cup on scale and tare cup weight.
3 Measure 55.0 gm of base resin (Epon 862) into mixing cup.
4 Measure 5.0 gm of modifier (Heloxy 68) and add to base resin. Mix material thor-
oughly.
5 Measure 8.5 gm of hardener (Epicure 3234) and add to resin/modifier mixture. Mix
material thoroughly.
6 Mix 4.7 gm of Filler1 (Aerosil) with 5.3 gm Filler2 (Sil-Cell).
7 Add Filler1/Filler2 mixture to resin/modifier/hardener mixture. Mix adhesive thor-
oughly.
(k) With applicator stick, fill 0.50 inch (1.3 cm) gap between foam tape and perimeter of enclo-
sure with adhesive.
(l) Squeegee off excess adhesive flush with foam tape and top of fuselage.
(m) Position cover over CAPS enclosure, orient cover using reference lines, and gently press
into place.
(n) Secure cover to fuselage in the following manner:
Note: To prevent cover deformation and generation of air pockets in adhesive,
tape CAPS cover to fuselage with two people working on either side of air-
plane.
1 For RH and LH sides, cut 10, two-foot strips of filament tape and make ready for
quick-use by lightly hanging each piece to the leading edge of horizontal stabilizer.
WARNING: Apply constant pressure to cover while taping. Do not apply and
release pressure as air pockets will develop in adhesive. If addi-
tional pressure is necessary, first apply pressure to tape strand
on cover, then release tape tension and reset tape.