MOONEY INTERNATIONAL CORPORATION
M20V SERVICE AND MAINTENANCE MANUAL
Page
Date
10
MAR 2017
Rev Date
utes between coats in cold, dry weather; in humid
weather, allow fifteen minutes between coats.
(2) Use a small round watercolor brush trimmed
to a point for application of undiluted touch- up paint to
small scratches and bare spots. Do not thin acid resist-
ant black paint or exterior finish touch- up paint for
brush- on application.
-NOTE-
M20V aircraft are painted with Sherwin- Williams
“Acry- Glo” urethane enamel. Inquiries concern-
ing application of this finish should b e directed
to: Sherwin- Williams, P.O. Box 2153, Wichita, KS.
67201.
-CAUTION-
Any flight control surface that is to be re-
painted should be stripped of all paint prior
to repainting. A minimum thickness, cover
coat should be applied to flight control sur-
faces. It is required that repainted control sur-
faces be removed and rebalanced prior to
flight per paragraph 27-91-00.
-NOTE-
Never use abrasive polish compounds or harsh
soaps and detergents on urethane finishes. Once
the surface gloss is damaged it cannot be re-
stored by polishing.
20-00-04 - PAINTING - INTUMESCENT FIRE
RESISTANT COATING (FIREFREE)
The composite shell is painted in specific areas with
highly flexible, intumescent type paint Refer to Fig.
20- 4. This paint (Flame Control No. 173FRP and No.
180) along with Flame Control 190 creates a fire resis-
tant coating. When attacked by fire and/or high heat,
the coating puffs up (intumesces) and forms a thick,
dense fire barrier, thus affording maximum burn
through (fire) protection. This foam layer retards the
penetration of heat to the substrate, thus insulating the
surface.
1. Remove all mold release agents and other foreign
matter from application area. lightly sand and clean all
glossy surfaces.
2. Epoxy prime per Mooney spec 20 sect 42 (contact
Mooney Technical Support for instructions) for metallic
substrates, or use p900 (catalyst no. c916) or approved
alternate for composite substrates. ensure substrate
surface is clean prior to prime/paint.
3. Use only manufacturer approved reducer for thin-
ning respective paints, if required.
4. Flame Control No. 173frp (spray application) and
Flame Contol No.180 (brush application) instructions:
(a) Thoroughly mix paint to achieve homogeneous
mixture, but do not strain. a mechanical shaker is rec-
ommended for mixing.
b. Use heavy duty airless spray equipment to apply
one cross coat of flame control no. 173frp at approxi-
mately .008 to .010 inch wet film thickness. apply uni-
formly across entire paint area.
c. Air cure (65- 100F) coating for min 30 minutes.
force air dry at 175- 190F for min 1.5 hours.
d. Add additional cross coats using above proce-
dure until a proper dry film thickness of .030 inch is ob-
tained. Touch up preexisting areas that are damaged or
hard to get areas (pin holes, peel strip edges, gauge
marks, etc.) by brush using Flame Control No. 180
brush- able fire resistant coating compound.
e. After final coat and touch up is applied, allow
paint to air cure for min 30 minutes, then force air dry in
oven ( 175- 190F) for min 4 hours
f. Ensure coating surfaces remain free of contami-
nants during and after curing cycles for application of
flame control no. 190.
5. Flame control no. 190 application instructions:
Flame Control No. 190 is a polyurethane coating, de-
signed for use as an overcoat (topcoat) for Flame Con-
trol Intumescent fire resistant coating compounds. No.
190 possesses outstanding resistance to oil, grease,
kerosene, jet fuel, and other aircraft fluids.
a. Mix equal parts ”a” and ”b” together. allow mix-
ture to sit for 30 min.
b. After 30 minute induction, blend thoroughly with
drill motor and paint mixing blade for 2 min until homo-
geneous mixture is obtained. take care not to entrain air
into mixture apply at a rate of approximately 320 sq ft
per gal until wet coat thickness of .005 inch is obtained.
this will cure to a dry film thickness of approximately
.003 inch.
6. Refer to manufacturer specifications for suggest-
ed equipment and precautions.
20-00-04
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