We followed the instructions on the tin: removed all the old flaking varnish, sanded back to wood where the varnish came off and all the remaining varnish was keyed effectively.
However, now we have painted the 2nd layer of woodstain, the previous varnish is still showing through. Maybe the old varnish has a denser pigment? It isn't opaque but is is definitely not as translucent as the mahogany 5 year satin woodstain (water based).
What would you recommend we do to stop it looking patchy? Painting a
3rd layer, 4th..., using another product on top?
As the sanding took over 3 hours, ideally we would like to avoid going back to the wood again!
Any advice is much appreciated as it is for our front porch.