NOTE: Dinol AV-30 (BMS 3-29) weighs over 3 times as much as Dinol AV-8
(BMS 3-23) and could produce a significant weight increase when
used on all areas where a single coat of corrosion inhibiting com-
pound is recommended. This is based on the dry film weights of AV-
30 compared to AV-8 when applied at the recommended thickness.
Once the coating has cured, a weight increase of approximately 500
grams per liter of AV-30 used or 80 gram per square meter of sur-
face area covered will be realized. The weight increase from AV-8
is approximately 330 grams per liter and 25 grams per square
meter. A decrease in coating weight of approximately 40% would be
realized if AV-30 is used in lieu of the BMS 3-23/BMS 3-26 dual-
coat (140 grams per square meter). All weights are approximations
and will vary depending on actual dry film thickness.
(2) Materials qualified under BMS 3-29
Material Vendor
Dinitrol AV-30 Dinol International., VOL040
(3) Precautions for Use of BMS 3-29
(a) Use the same precautions for BMS 3-29 that we list for BMS 3-23 water
displacing compound (Ref par. 4.B.(3)).
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(4)
Compatibility of BMS 3-29
(a) As these materials are usually hydrocarbons, you can apply a differ-ent compound over existent corrosion inhibitors without bad effects.
(5)
Cleaning before application of BMS 3-29
(a) The surface does not need to be extremely clean before you apply
these compounds. But you will get better joint penetration if you
clean the area first. Vacuum or wipe away loose dirt or other
unwanted matter. Then you can clean the surfaces, where necessary,
with usual airplane cleaning agents or solvents.
(6)
Methods of Application of BMS 3-29
(a)
You can use the same application procedures for BMS 3-29 that we list
for BMS 3-23 water displacing compound (Ref par. 4.B.(7),(8)), with
the differences noted in steps (b) and (c) below.
(b)
Let the BMS 3-29 compound dry. Do not wipe up puddles after 60 min-utes.
(c)
If the coated surface will touch another surface (such as insulation
blankets), let the coating dry tack-free.
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STANDARD PREVENTIVE MAINTENANCE PROCEDURES
(7) Removal of BMS 3-29
(a) You can use the same solvents for BMS 3-29 that we list for BMS 3-23 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：757 防腐手册 CORROSION PREVENTION MANUAL 第二册 一般信息(58)
