: I'm down to 100 gritt on my semi final hull hand sand and can still see some
: orbital sander swirls , will these show through the glass or must I get
: every one out ?? At the moment I'm working my way along one side of the
: hull changing paper often and when the blood refuses to flow in one arm I
: change direction

: Lindsay

: ps: POC hull

Hi Lindsay

If you can see the swirls now, you will see them under finish. Cross cuts in the grain will darken some when wet. You could run a damp cloth over the area and get an idea whether they will show or not.

Just out of curiousity, may I ask what grit you used on the sander... It's not normal to get swirls from an ROS. Cause would usually be very coarse grit and/or low speed.

Rehd