It's pass time for me to sand and varnish the boat. Last summer I did a ok job of sanding but the varnish job was one of my worst yet. It wast the first time I used poly foam brushes instead of using a natural bristle brush. I've got the Brightwood varnish book and I'll reread and see where my mistakes were. My best guess is overloading the foam with varnish and not tack ragging well enough(anyone have a recipe for making tack rags).
Have any of you used those foam brushes and if so did you follow up with a natural brush, tip out? How does that work? Do you lightly pull dry natural brush over the newly laid varnish?
My sanding tools are a black and decker mouse and an porter cable variable 5 hole. Both do well but I'm wondering if there is another sanding tool that might help me if the hard to get spots such as under the bow and up against the ribs. A few years ago I purchased the Dremel sanding kit. The darn thing broke after the first hour, just quit. I had hopped that tool was going to be the problem solver. Any suggestions what might be?
We have found the Fein Tool Multi Master to be be very helpful in restoration work. The small sanding pads are great for the small areas around frames and corners. A foam roller cover applies paint, varnish and epoxy very evenly but must be tipped out with a good natural bristle brush that is slightly wet.
I have been using a random orbit variable speed sander in combination with a palm sander for many projects. I like this combination as the orbit can reduce the wood quickly and the palm finishing. The palm alows me to choose a large variety of sand papers. I as well have a multi task contour sander for the corners and hard to get at areas. You will still need the hand sanding blocks for touch up. Overall I have found trying to stay with sanding tools that allow you to choose the large range of sand papers out there, is the best option.
As for applying varnish I have tried just about everything and still come back to a good quality bristle brush. If you have put in a lot of time on a project and want to show your craftsmanship it is well worth the extra time to use a good brush. I know the arm gets a bit tired but it is hard to beat the end result. Just a few suggestion for you!