TOMARK, s.r.o.
Airplane Maintenance Manual
Chapter 51 Standard Practices Structure
Issue: 28.FEB 2017
Page 159
Bonding Big Irregularities and Material Transitions
Epoxy and polyester bonding agents for car bodies are suitable;
moreover for transitions between two types of material with increased
elasticity. Recommended bonding agents are shown in the Tab.
Recommended bonding agents.
Caution Bonding agents can be harmful to health.
▶
Follow the safety and data sheets of the agents used.
▶
Carry out bonding of big irregularities and transitions of fibreglass
parts with Al-sheet.
▶
Apply polyester bonding agents with plastic spatula after being mixed
with initiator.
▶
Allow the surface to dry
▶
Sand with sanding paper with grain size of 240 to smooth surface.
▶
Remove dust and clean with degreasing agent.
▶
Apply epoxy bonding agent from the special jet with static mixer by
means of extruding pistol.
▶
Wipe off excessive material with spatula to final appearance before
setting (slight recess is not a defect) - do not sand!
Surface
Putty
Type
Additament
Drying
[min/C˚]
Al – alloys
Inter TROTON Universal
Inter TROTON Glass Fibre
Polyester
Polyester
PE Iniciator(included)
PE Iniciator(included)
18/20˚C
16/20˚C
Composite
Table 6
Recommended bonding agents
Application of Primer (Paint)
Caution Primer can be harmful to health.
▶
Follow the safety and data sheets of the primers used.
▶
In order to reach a uniform resistance to corrosion and smooth
surface, carry out application by means of spraying (air standard gun
with the upper vessel, air HVLP gun, airless electric gun).
The adjusting of the used gun (given by manufacturer) differs
according to the type - air pressure, jet diameter.