VOC (Volatile organic compounds) regulations are changing rapidly across the USA and Canada. Not all of the stains that we sell are compliant for all areas. As it stands 16 US states and Canada have adopted the more stringent 250 regulation:

TWP 100 Series is not VOC Compliant for Canada and these USA states and cannot be shipped or used there: California, Connecticut, Rhode Island, Maine, Massachusetts, New Hampshire, Vermont, Delaware, District of Columbia, Maryland, New Jersey, New York, Northern VA, Pennsylvania, Parts of Arizona, Ohio, Illinois, Indiana, all of Canada.

TWP 1500 Series is compliant for all 50 States but cannot be shipped or used in Canada.

TWP 200 Series is compliant for all 50 States and Canada.

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    P.J. · 08/09/2019
    I'm reading your site - it's very helpful - but I'm not sure I understand the difference between the 100 series and the 1500 series. I live in western NC. Does that make a difference?
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    Joseph · 07/23/2019
    Is TWP 100 allowed to ship and use in Flagstaff, Arizona? Zip code 86004
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      TWP Stains · 07/23/2019
      Should be. The Phoenix area is restricted to low VOCs.
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    Glenn O · 07/12/2019
    I live in AZ (zip 85234) where I hope to receive shipment, but plan to use TWP 100 in cabin in Utah. Noting TWP 100 cannot be shipped to "parts of AZ", can it be shipped to the AZ 85234 zipcode?
    Thanks
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      TWP Stains · 07/12/2019
      No, it is not allowed in Phoenix area.
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    John · 06/11/2019
    If I use 100 series and Nebraska later changes it’s VOC restrictions, could I apply the 1500 series over it without stripping?
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      TWP Stains · 06/12/2019
      Yes, but they will not change anytime soon.
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    Debra · 06/07/2019
    Hi-We are building a redwood fence in California. It is kiln-dried. What prep (besides sanding) is needed and how long to wait before staining? Thanks!
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    Bruce E · 06/01/2019
    I will be putting on kiln dried rustic channel shiplap for siding. We live in Mts of Northern VT. w/ 5 months of winter snow on the ground. The back side of the siding is planed smooth. The front / exposed side is rough cut except the 1 inch channel is planed smooth. To prevent cupping I was going to one coat the backside w/ TWP 1500 fairly soon after delivery then put the siding up if this is ok. I realize rough cut can be done right away, but can the channel also be done then or should I wait to the following May or June? Would prefer putting up siding this year if possible.
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      TWP Stains · 06/01/2019
      Best to install, wait for a month or two (for kiln dried wood), prep with the Gemini Restore Kit, then stain. No need to stain the backside not would it prevent cupping.
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    Lindapala · 05/17/2019
    Hey there, we have a cottage with a 9 year old massive pressure treated deck facing West in Northeast Michigan. Lots of sun and snow. We’ve used TWP 100 twice to stain it. So far so good. It’s aging gracefully. Thank you for a product that actually lasts more than one year. Before we embark on our next loving journey into staining this thing, I was wondering if we should switch to the 1500 series this round? Regards,
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      TWP Stains · 05/17/2019
      No need or advantage. Stick with the 100 Series.
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    DocH. · 05/08/2019
    I have a 40 year old cedar log house to exterior re-hab in Northern Va. After sealing the joints and cleaning the exterior walls, which is better, TWP101 or TWP1501? The climate is humid in the summer. Thx.
    • We will reply to your comment shortly
      DocH · 05/08/2019
      Edit: I see now that TWP101 is not shipped to N.Va. So how does the humid climate here affect the drying time of TWP1501?
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        TWP Stains · 05/08/2019
        No issues, it dries like the 100 Series.
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      TWP Stains · 05/08/2019
      Use the TWP 1500 series.
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    mark · 05/04/2019
    I really like TWP 100 and I've have been buying it in 5 gallons. I'm in Washington State,so free shipping is important. With 5 gallons I've been able to maintain my deck for 2 yrs
    However on my last 5 gallons when I stir'd the TWP for the second year the bottom of the container had solidified compounds. I do seal the container and stow it in the packaging it came in. Is this occurring because I'm using 100 ?





    to
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      TWP Stains · 05/04/2019
      The shelf life of an opened container is 12 months, that is why this is happening.
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    Joe · 04/24/2019
    Hello, what is 2 coats, wet on wet mean?
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    Betsy · 04/18/2019
    I’m in Ohio. Installed cedar privacy fence in late fall. Too cold to stain. I will use a semitransparent stain. Boards are rough to touch with splinter chances so assume it’s rough sawed. Fence is clean, no gray or stains. Looks brand new. Do I need to clean it first before staining? It is a very long fence so I’m trying to be efficient with my time. Also 2 coats now- wet on wet or 1 coat now and 1 in a year? I’ve read both. If 2nd coat in a year do I need to use cleaner/Brightener before second coat if the fence still looks as good color and dirt wise? Thank you
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      TWP Stains · 04/19/2019
      No need to prep new rough sawn wood as long as it clean. 2 coats wet on wet for this since it is rough sawn.
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    AC · 04/15/2019
    I just built a patio cover out of cypress cut 2 months ago and planed the rough cut. Want to keep it as close as possible to natural color and keep from aging grey. Can I stain it now or do I have to wait and which product is best in Louisiana?
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    bigdaddy · 04/06/2019
    what is the difference between 1500 and 100 in terms of coating performance such as mildew resistance and coating lifespan.
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      TWP Stains · 04/07/2019
      No difference. They will perform the same.
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    Marty Davis · 04/02/2019
    We are in NW Georgia and have a large deck around an above ground pool. Deck is 3 years old and had Thompson water seal 2 years ago. Will TWP work well with a lot of exposure to water 3-4 months out of the year? (Small children continuously getting in/out of pool!). Which TWP product will work best?
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      TWP Stains · 04/02/2019
      Hello,

      No deck stain can withstand chlorine from the pool water for a lengthy time but the TWP will easily outperform the Thompsons.

      Use the TWP 100 Series.
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    Tim · 03/30/2019
    I am putting new western red cedar channel shiplap siding on my new house, rough side out. I would like to pre stain it before i install it, (new wood), or do I need to let it weather for several months? Also, would TWP 100 be better and last longer than TWP 1500? Is one coat enough on rough sawn cedar?
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      TWP Stains · 03/30/2019
      Rough sawn can be stained right away. Use the TWP 1500. 1-2 coats as it depends on how porous your wood is.
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    Ann · 03/24/2019
    Cedar deck in Iowa facing South. Full sun most of the day. Should I use the 100 or 1500 series? Want to use a Cedar tone color.
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    JC in Florida · 12/18/2018
    JC in Florida

    Deck Location State: Florida - East Central Coast
    Full Shade: 3/4; Partial Shade: 1/4
    Wood Type: New Pressure Treated Pine - 4 months old
    Mold or Mildew Issues: Small amount
    The reason for Previous Stain Failure: N/A deck has never been stained or sealed

    Please advise what options are available for a stain and sealer in one product, and how long to wait for the pressure treated pine to cure (if any).

    thanks
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    Ron · 12/08/2018
    Is TWP 100 Series suitable for protecting reclaimed weathered lumber on the new facade of my house in northern AZ? Some of the wood on southern and western exposures will bear the full brunt of the Arizona sun and monsoon storms. Do you ship to Sedona (Yavapai County) in AZ?
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    Andy · 10/01/2018
    Can TWP 100 be shipped to Shenandoah County Virginia? I see it cannot be shipped to Northern Virginia. We are about 100 miles due west of Washington DC
    zip code is 22652. It is unclear to me what part of Virginia you mean.
    • We will reply to your comment shortly
      TWP Stains · 10/02/2018
      The counties surrounding DC are restricted. The rest of VA is not and can use the 100 Series.
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        Andy · 10/02/2018
        Thanks. Another question..this deck has been slippery in the past. Can you add grit or sand to TWP stains to mitigate that?
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          TWP Stains · 10/02/2018
          No. You cannot add a grip to a penetrating stain like the TWP.
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            YG · 10/16/2018
            so what is the best remedy for slippery when wet wood decks?
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              TWP Stains · 10/17/2018
              TWP is a penetrating stain so it is not slippery when wet.
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    Mike · 09/17/2018
    What Colors would be Best for 2 Tone Deck Staining, Light To A Little darker tone