Which de-icer?
So with the cold snap I'm sure it's time for the annual question on de-icing.
I'm usually happy just leaving the sun to do its magic but if I want to use product, what should I use (airframe only).
A 5l bottle of TKS 1 fluid costs about £45 and it states it can be used for ground based use as well. I think these are glycol based and hence a bit less viscous for in flight use - which having a non FIKI piper doesn't really matter for me.
So what's stopping me from using generic automotive de-icer? These seem to be ethanol/methanol based. Does this damage the airframe?