Try using mineral spirits and leave on the area for awhile. This should help loosen the paper.If you have a heatgun that would also aid in the removal.
Grab an old hair dryer and go at it. I would try spot washing with different solvents until I found what would work. Remember, tar is oil base. I had to remove laminate panels from my kitchen cupboards and my husband suggested the hair blower. Worked like a charm. I was gun ho for the heat gun and did not need it. Oil base-something as simple as oxy cleaner or tide might work. Goo Gone may be an option.
I agree with the heat gun. If you ever remodel the floor and want to expose the first layer in the future, you will need to remove the layer of tar paper off the surface. You can use the putty knife to scrape the tar paper off.Sections should come free by hand, but there will be areas where you will have to scrape with the knife to cut the paper away from the surface. Either rip off all the flooring there and start from scratch or go over it which would be about the same amount of work! You could try an old iron. Put paper over the asphalt and then use the iron. The glue on the back will soften enough to peel up paper. Also, check for your state approved asbestos testing facilities. I found one in Maryland to test some tile for $25. I just went through this with my 1/2 bath except they were peel and stick tiles. I knew mine weren't asbestos. We used the iron method as Lynda Davis mentioned and that worked best for us. The heat gun/hair dryer worked ok, but we still had to lift up an edge of the tile and it got our tools and everything hot that was even close to it. After we got all the tile up, we were left with quite a bit of adhesive on the floor. We tried just about everything and the only thing that really worked for us was Citristrip. It's low VOC and you can leave it on the floor for up to 24 hours to allow it to dissolve the glue. As long as it doesn't dry it's good. When you test a small area and it's loosened the glue, then you take a plastic scraper and the adhesive scrapes right off. You have to go over everywhere you put the stripper and thoroughly wash it down afterward to get all the solvent off. We went over ours several times. Depending on what you plan on doing to your floors, you may have to sand them down before staining because the solvent will take off any poly you try to put down. Vinyl tile is most often not 'friable' if it has asbestos, so not a problem and you say it is up already, so don't worry. The paper and tar is you problem. The long way is to melt it off, but you are in for a long messy job. You likely will never get it all up and will end up sanding for days afterwards. I would consider sanding from the beginning or taking a piece to a good paint/hardware or vinyl flooring store store and asking what chemically might remove it. Chemically, although might be nasty to smell, will likely take it up down to the raw wood best and quickest. Any way you go will still leave some sort of residue, since the paper is petroleum based. I would recommend LIGHTLY heating the surface and pulling the paper up.. Then you will need to wipe down the floor with something to remove the oily residue.. Hope that gave you an idea.. I would use a soft plastic scrubber, and vinegar,(the smell will disappear quickly. Soak it, let it set for awhile, then start scrubbing. I used a wide window scraper about 4 inches wide and scraped it off I would not try and dissolve it first because then you will have a sticky mess every time you make a scrape. I would put new wood floors on top!
I like the idea of heating the surface, pulling up as much paper as you can, and then using something like Goo Gone to get up the residue. It would probably take a lot of Goo Gone, but that is probably less expensive than new wood flooring! When I worked at a asphalt plant I used WD40 to remove tar from my shoes, clothes and my floor. Get a few large cans scrape up what you can then spray what you can work on in a few minutes. A house we bought had carpet in the kitchen. We we pulled it up it had tar paper under it. The real problem was the installer glued the carpet with a product that melted the residue from the tar paper into the wood. We had no choice but to relay new flooring over that part. No scraping or sanding would help.
I have used play sand on sticky floor glue, it will make it come up easier, just do little sections at a time.
We laid down towels and soaked them with Diet Pepsi over night. The next day we removed the towels and the tar paper scraped right off!
Whoa..... I would sure NOT DO a heat gun with mineral spirits.... it can combust and produce carbon monoxide. Mineral spirits and scraper; or heat gun and scraper. Better yet you rent a machine.... https://www.youtube.com/watch?v=QI-8v5d3mqY Can you remove tar from wood?Use A Scraper That's Not Too Sharp
Did you know that you can remove tar from your hardwood floor with a popsicle stick? You can even use an everyday cooking item such as a plastic spatula to get rid of the gunk.
How do you dissolve tar?WD-40 and Goo Gone. Take a clean microfiber cloth and spray it with either WD-40 or Goo Gone. ... . Once applied, let the WD-40 or Goo Gone soak into the tar for 10 to 30 minutes.. After the time has elapsed, rub the area with a clean microfiber towel until all tar has been removed.. Will vinegar dissolve tar?No. Acids are not effective at dissolving the hydrocarbons of tar, whether that be roofing tar, roadway tar, tar from cigarettes, or tar from burning woodsmoke.
What is the best solvent for removing tar?How do you remove tar, sealer, and asphalt? That's easy: Use Oil-Flo Safety Solvent. You could try paint thinners, diesel, kerosene or some other chemical, but they all leave a residue and can be pretty harmful to you and your environment, not to mention what they could do to your tools and equipment.
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