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Model # 209907

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Rx-35 PRO-999 1 gal. Interior Drywall Repair and Sealer Primer

$19.98
  • Seals and primes porous surfaces like drywalls, popcorn ceilings
  • Low odor and no drip formula
  • Dries in under 3 to 4 hours
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Product Details

ROMAN's PRO-999 Rx-35 is the ideal primer for torn drywall, joint compound, residual wallpaper paste, spackling, and builder's flat paint. PRO-999 seals and primes porous surfaces to prevent bubbles and rewetting. It dries clear with a slight residual tack, enhancing adhesion of paint or new wallpaper. PRO-999 applies easily with a paint roller, paint brush, or spraying system. It is water-based and can be cleaned up easily with water. All ROMAN products contain biocides to resist the growth of mold and mildew in-can and on the primer film. Go with the pro's and choose ROMAN - the No. 1 Contractor Brand.
  • PRO-999 Rx-35 is ideal for sealing and priming porous surfaces like torn drywall, joint compound, and residual wallpaper paste
  • Perfect for priming bare drywall before hanging wallpaper or painting
  • Dries clear with a slight residual tack improving adhesion of paint and wallpaper
  • No drip formula, won't run down the wall during application
  • No spatter and low odor
  • Covers approximately 400 square feet per gallon, depending on the porosity of the surface
  • Dry Time: Minimum dry time is 3 hours. Optimum dry time is 12 hours. Low temperature, high humidity and poor ventilation will slow down the drying process.
  • Contain biocides to resist the growth of mold and mildew in-can and on the primer film
  • Made in USA
  • Online price includes PaintCare fee in the following states: CA, CO, CT, DC, ME, MN, OR, RI, VT, WA
  • Return Policy
  • California residents

Additional Resources

From the Manufacturer

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Specifications

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Questions & Answers

49Questions
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Q:Can this be used in a paint sprayer
by|Aug 15, 2023
0 Answer
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Q:Can this be used as a paint primer on a very old plaster wall?
by|Jul 9, 2023
1 Answer
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A:  Hi Reno- The PRO-999 (Rx-35) can be top-coated with a high-quality latex paint. The primer dries clear, therefore it will not provide any hide like a traditional paint primer. It is designed to lock down porous surfaces and provide an appropriate base for paint or wallcovering. Due to the variations in types and ages of plaster, ROMAN suggests a compatibility test. Here's a step-by-step guide on how to conduct the patch test: Preparation: Ensure the plaster surface is clean and dry. Remove any loose paint or particles from the area where you'll be conducting the test. Cover the surrounding area with a plastic sheet or tarp to protect it from accidental spills or splatters. Mix the primer prior to application. Application: Apply a small amount of the PRO-999 (Rx-35) primer to the clean plaster surface using a paintbrush or roller. Keep the layer thin and even. Avoid thick applications as they may affect the test results. Drying time: Allow the primer to dry completely (3-12 hours). Be patient and avoid touching or disturbing the test area during this time. Evaluation: After the primer has dried, inspect the test area for any signs of poor adhesion, bubbling, blistering, cracking, or other undesirable reactions. Check to see if the primer has adhered well to the plaster surface and if it forms a strong bond. Optional: For a more thorough test, you can perform additional checks such as adhesion tests or applying light pressure with your fingernail to see if the primer easily comes off the surface. Interpretation: Based on the results of the patch test, you can determine the compatibility of the PRO-999 Rx-35 primer with the plaster surface. If the primer adheres well and shows no signs of incompatibility, it should be safe to proceed with using it over the entire plaster surface. Keep in mind that this patch test is a preliminary assessment, and while it can provide useful information, it may not account for all potential compatibility issues that could arise over time or with changes in environmental conditions. Always follow the instructions and recommendations for surface preparation and product application. If in doubt, consider reaching out to customer support.

by|Jul 25, 2023
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    Q:Would this product allow me to paint right over an antique plaster wall that has had wallpaper removed and had cracks and holes repaired?
    by|Jul 9, 2023
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    Q:Can this be used to safely seal popcorn ceilings where asbestos may be in question?
    by|Jun 29, 2023
    1 Answer
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    A:  The ROMAN PRO-999 Rx-35 primer will not provide protection from Asbestos. Always refer to the National Institutes of Health's guidelines on handling asbestos which can be found here: https://www.niehs.nih.gov/health/materials/asbestos_508.pdf

    by|Jul 3, 2023
      Showing 1-4 of 49
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      Customer Reviews

      4.5 out of 5
      (229)
      • 4.5
        out of 229 reviews
      • 76% recommend this product
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      Showing 1-10 of 229 reviews
      Tear up your drywall? Buy this!
      I removed paneling and it was nailed and glued to the wall, so removal caused deep tears in the drywall...down to the brown paper layer. This sealed it right up and i was able to mud over and then sand without issue.
      by
      • Verified Purchase
      • Recommended
      1 found this review helpful
      Yielded amazing results
      I bought this bcs a YouTube channel recommended it. https://www.youtube.com/c/ThatKiltedGuyHowToVideos. I used it to seal over some water damage on my ceiling. Worked great it yielded amazing results just what I needed.
      by
        • Recommended
        5 found this review helpful
        I pulled an old border off my bathroom walls. It wound up pulling off some of the drywall paper. ...
        I pulled an old border off my bathroom walls. It wound up pulling off some of the drywall paper. Pro 99 worked great at sealing the paper and as a primer as well !
        by
        • Verified Purchase
        • Recommended
        2 found this review helpful
        this product is great for sealing walpaper glue. i recently did a bathroom remodel where there wa...
        this product is great for sealing walpaper glue. i recently did a bathroom remodel where there was wallpaper that was 30 years old. wallpaper came off easy but have rough dryglued residue. using a 3/4 inch nap roller. i put 2 coats on . it helps smooth and seal glue. had very small spots to put drywall mud on. then put an oil base primer on walls then used behr paint, 1 coat coverage and no blistering or peeling
        by
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        • Recommended
        2 found this review helpful
        I had severely damaged walls after removing 50 year old wallpaper. This product was recommended i...
        I had severely damaged walls after removing 50 year old wallpaper. This product was recommended in a YouTube video I watched. I didn’t take any chances and used 2 coats, probably overkill, but the walls were more brown paper than painted surface. The product dried to a slight sheen and was a bit tacky. I waited 24 hours (didn’t really need to) before I started the skim coating. There was no bubbling or adverse affects. My project turned out beautifully. I was very satisfied with the results.
        by
          • Recommended
          3 found this review helpful
          I never tried to skim coat over dry wall that’s been torn down to the brown paper, but I heeded t...
          I never tried to skim coat over dry wall that’s been torn down to the brown paper, but I heeded the warnings of everything I saw only. After using this product, I had zero issues with doing the skim coat. And it dried in roughly 15 minutes, not the 60 minutes stated on the label. I’m very happy with this product.
          by
          • Verified Purchase
          • Recommended
          5 found this review helpful
          We used RX35 to prime & paint over wallpaper that had been up 45yrs! One coat of RX35, then 1 co...
          We used RX35 to prime & paint over wallpaper that had been up 45yrs! One coat of RX35, then 1 coat of light beige paint with primer covered completely without lifting the wallpaper. We saved a lot of time, money & headaches by not ripping down the wallpaper or having to patch up old dry walls. What a lifesaver! We’ll definitely use RX35 again!
          by
          • Verified Purchase
          • Recommended
          9 found this review helpful
          I am an experienced DIY renovator and have completed five home remodels and hundreds of individua...
          I am an experienced DIY renovator and have completed five home remodels and hundreds of individual projects such as flooring, wall tile, cabinets and woodworking, paint, etc. The Rx-35 was recommended by several stores (including another nationally-known paint chain) as a remedy for covering wallpaper and wallpaper backing in preparation for painting. The circumstance was wallpaper that had been applied over drywall without priming or sizing, making it impossible to completely remove without extensive drywall damage. The Rx-35 performed poorly in this instance causing repeated bubbling. It is also clear which doesn't allow wallpaper patterns to be adequately hidden. However, I switched to a shellac-based product (Zinsser BIN) and it performed flawlessly. It covered/sealed with no bubbling and the white color provided a perfect base for painting. Forgo the ease of cleaning up water-based products such as Rx-25, I would recommend an oil/shellac based product, specifically Zinsser, over water-based solutions in these circumstances as they are much more reliable in their final results.
          by
            10 found this review helpful
            by
              Great coverage, works as advertised. Could cause you to have to add an additional coat of paint to the finished area but that is a small price to pay to keep it from bubbling up and flaking off.
              by
              • Verified Purchase
              Showing 1-10 of 229 reviews

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              Ratings
              (229)
              (2788)
              (18)
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              ApplicationSealerGeneral PurposeGeneral PurposeInterior Wall & Trim
              Primer PurposeLow Odor, Sealant, UniversalColor Changing, Low Odor, Sealant, Stain Blocking, UniversalUniversalGrease Cover, Low Odor, Odor Blocking, Smoke Cover, Stain Blocking
              Container Size1 Gallon1 Gallon1 Gallon1 Gallon
              SheenFlat/MatteFlat/MatteFlat/MatteSemi-Gloss
              Surface Material UseDrywall, PlasterBrick, Concrete, Drywall, Fiberglass, Metal, Plaster, Plastic, Stucco, Vinyl, WoodDrywall, PlasterComposite/Vinyl, Concrete/Brick/Masonry/Stone, Drywall, Galvanized Metal, Metal, Wood
              Paint/Stain FeaturesDries Clear, Low Odor, Low VOC, Mildew Resistant, Mold Resistant, No Drip, Sealer, Splatter ResistantFast Drying, Low Odor, Mildew Resistant, Sealer, Tintable, Top Coat RequiredTintablePaint & Primer in One
              Application MethodBrush, Paint Sprayer, RollerBrush, Paint Sprayer, RollerBrush, Paint Sprayer, RollerBrush, Paint Sprayer, Roller
              View ProductView ProductView ProductView Product