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Back in the finishing area with questions6/21
I always enjoyed doing finishing and had a ton of experience. Itís been about 8 years since I did it on an everyday basis. The first thing I noticed was how much better the newer guns atomize finish. Thatís not what this is about; itís about the second thing which was how the current lacquers are gobbling up my sanding paper. I use Mirca goldflex-soft in 4 Ĺ x 5 inch sheets that come in large rolls. They have a foam backing on them.
We use a lot of different lacquers but mostly pre cats from ML Campbell and Mohawk. The pre cats seem to just eat up the paper. I am a big sander, especially on my first couple of coats to get a nice smooth level surface to build on. I noticed I was averaging a sponge a drawer box, literally. By the time I was finished sanding the inside and two sides on the outside of a drawer box the poor pad was gone.
Is this representative of the overall toughness of the more current coatings? Are there more versatile papers that might last longer and do a better job? We get a very high end sand paper for the overall wood sanding. And I donít mine a more expensive paper for sanding finishes if it gets the job done. I want the good stuff.
Also what grits is everyone sanding with now. For example on clear coats what is your first sand on the sanding sealer and so on. The same for painted items. I noticed the lacquers are a lot harder than they were in the past and I think I can step my grits up faster than I used to and still achieve a very smooth finish.
Thanks a lot; I look forward to interacting with you guys as a doer again. Being the owner/boss is no fun but necessary evil.
Oh yes I have always tried to use one type of paper for all finishing needs. To avoid confusing everyone. Including myself.
I always complained about the same thing. Then one day one of my suppliers brought a Surfprep sander and foam pads in to my shop to demonstrate.
I was sold right then. It was great. Buildup on the pad was almost zero. A quick blast from an air hose and right back to sanding. The pads lasted a long time and the system was great for obtaining a flat surface for the next coat.
They have a video ad on this forum I believe.
I second the SurfPrep sander/paper. What a timesaver in the finish room. Go to their website/youtube channel and watch some video's about how it works and what it is. Great product.
Get rid of the precats. And if you don't want to do that use a precat sanding sealer. They sand to a poweder unlike the precats which gum up the paper.
I used MagnaMax and MagnaKlear for the longest time. I used the MagnaSand sealer on a job and it was great for sanding.
I have switched over to Krystal which is a post cat. Sands much nicer then the precat ever could. Much harder/durable finish also.
I rarely use the Krystal sealer because Krystal itself sand well. The sealer sands easier, absolutely. But Krystal sands well enough, just a bit tougher. It powders up nice as long as you wait long enough for it to dry (45-60 min)
Do not like foam pads, never liked foam pads, could be because I am cheap, they are not! Klingspore PL280 A/O lub paper. Quarter pad random, hand sand were needed. Follow up with either Klingspore med. non-woven or 3M med. scothbrite. My Chem craft pre-cats sand well after a few hours.