Cadmium Substitution - garteur
Cadmium Substitution - garteur
Cadmium Substitution - garteur
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GARTEUR LIMITED<br />
British Aerospace<br />
Shorts<br />
Hydraulic fluids (OM15) Skydrol<br />
Aviation fuel Avtur F34 Jet A1<br />
Engine Oil DERD 2497<br />
Cleaners<br />
Water(40 o C)<br />
Propan-2-ol<br />
Turco DPM<br />
Ethylene glycol<br />
Table G1 ; Aircraft fluids examined<br />
Test fluids<br />
Coating<br />
post plating<br />
treatment<br />
Propan-2-ol<br />
Hydraulic<br />
oil (OM15)<br />
Fuel<br />
(Avtur)<br />
Engine Oil<br />
(DERD<br />
2497)<br />
Water<br />
(40 o C)<br />
ED Zinc - Ni none p p p p f<br />
passivated p p p p p<br />
ED Zn-Co-Fe none p p p p f<br />
passivated p p p p p<br />
ED <strong>Cadmium</strong> none p p p p p<br />
passivated p p p p p<br />
SermeTel none p p p p p<br />
topcoat p p p p p<br />
p - no evidence of deterioration<br />
f - moisture capable of attacking the grain boundaries of the coating allowing water to<br />
penetrate and get under the coating layer to produce a flaking effect if retained in this<br />
condition for any greater length of time.<br />
Table G2; Coating performance determined using B.Ae test procedure<br />
Page 90<br />
GARTEUR SM/AG17 TP128
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