carolsyracuse
Well Known Member
I thought I would post our experience with the Loehle Wonder-fil on our fiberglass cowling. We did the suggested prep and rubbed on the wonder fil. The excess wiped off easily, similar to wiping off car wax. We could see the white specs where the wonder-fill had filled in the holes.
We next sprayed on the filler coat DuPont? Corlar 13560S. Then we sanded down the filler coat . We sand until we see no bumps in that layer.
The problem with the wonder-fil is if you sand down too much, you can see the wonder-fil bubbling out. With the Loehle paint products, they recommend two different colors of primer so that when you sand, you can see the different color primer and stop before you sand down too far. We did not have this visual aid.
I did not think the wonder-fil was "wonderful". I ended up filling the pinholes that washed out with a different product that would not wash out when sanded.
We next sprayed on the filler coat DuPont? Corlar 13560S. Then we sanded down the filler coat . We sand until we see no bumps in that layer.
The problem with the wonder-fil is if you sand down too much, you can see the wonder-fil bubbling out. With the Loehle paint products, they recommend two different colors of primer so that when you sand, you can see the different color primer and stop before you sand down too far. We did not have this visual aid.
I did not think the wonder-fil was "wonderful". I ended up filling the pinholes that washed out with a different product that would not wash out when sanded.