Gemini Restore-A-Deck Kit

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Note: New Gemini Restore-A-Deck Labels Coming in Spring/Summer of 2019!

Make Restoring Your Exterior Wood ...Easy!

info buttonRestore-A-Deck Cleaner and Brightener system is a powerful "eco-friendly" two-part restoration system.

Step 1 Wood and Deck Cleaner that deeply cleans your wood to remove dirt, grime, mold, algae and general graying. The cleaner will help prep neglected wood and or prep for re-coating with a wood or deck stain.

Step 2 Wood Brightener is used after the wood cleaner to "brighten" the wood while neutralizing the cleaner to a natural pH balance. This step will improve the overall appearance of your wood while helping the wood deck stain longevity.

  • TWP Stain Calculator

    100% Biodegradable product
  • Concentrated powder formula - Cleans up to 1000 sq. feet!
  • Prep wood surfaces for re-coating with a wood or deck stain
  • Restores weathered gray wood to natural color
  • Eco-friendly


Gemini Restore A Deck

Have Questions on Prep?

Visit our Help Site for all the answers!


Kit Contains:

 Step 1 Cleaner Bottle and

 Step 2 Brightener Bottle

Coverage Per Kit:  Cleans and Brightens 600-1000 Sq. Feet
Concentrate:  Each Bottle Makes 5 Liquid Gallons
Temperature:  45-95 F
Application Tools:  Pump Sprayer, Scrub Brush


Thursday, 19 October 2017

Great for prepping for reapplication of TWP!

TWP Stains

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  • We will reply to your comment shortly
    DH · 09/06/2019
    I have a deck that I treated with TWP 1501 Cedartone 6 years ago. The deck is now in need of treatment because rain will no longer bead up on it. I do plan to use the Restore a Deck both cleaner and brightener. My other questions are:
    1) do I have to power wash, or can I just apply the cleaner with a 5 gallon hand pump sprayer, then rinse with a garden hose? Then repeat with brightener in hand pump sprayer, and rinse with hose?
    2) I have a lot of leftover TWP from 6 years ago. The can was opened, but has now remained sealed and in the basement (climate controlled) can I use this old can?
    3) a black mold problem. only a patch about 2 feet by 3 feet where it stays shaded almost all the time. Can I treat this with bleach, (before using the Restore a deck cleaner) and would the use of bleach in just one area make it look different from the rest of the deck?
    Thank you in advance for your help.
    • We will reply to your comment shortly
      TWP Stains · 09/07/2019
      1. Pressure wash while using the kit.
      2. Most likely it has gone bad if it was opened.
      3. No need to use the bleach. Use the prep kit and it will come off.
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    Ted Collins · 08/31/2019
    I have read that the Gemini cleaner needs to be used within 6 hrs of mixing. Is this true? Also, does this also apply to the Brightener?
    • We will reply to your comment shortly
      TWP Stains · 09/01/2019
      Yes on the Cleaner. The brightener does not have an active shelf life so it does not matter if you use right away or a week later.
  • We will reply to your comment shortly
    Will · 08/22/2019
    I have a cedar deck that is many years old and I have just replaced several boards with new cedar. The remaining old boards had previously been stained with an oil based stain that has mainly worn off. The entire deck now needs to be restained. What is the best way to approach staining the combination of new and old cedar?
  • We will reply to your comment shortly
    Jim · 08/20/2019
    I just had a new deck built in late May 2019. I want to stain the first of September. Do I need the deck cleaner or can I use the TWP 100 stain directly (Pecan color) on the new deck? My Deck is 20x40 with 8 Steps, roughly how much stain will I need to purchase? Thanks
  • We will reply to your comment shortly
    Rick · 08/20/2019
    I had my deck previously stained with TWP stain 3yrs ago. Is it necessary to power wash all old stain off or just clean the surface before re-staining with the 100 series
    • We will reply to your comment shortly
      TWP Stains · 08/20/2019
      Use the Gemini Restore Kit while pressure washing for the proper prep.
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    Tom · 08/11/2019
    Referencing your answers to my posts on 8/11/19 concerning R-A-D Cleaner/Brightener Kit process run-off, the stain I have been using for over 15 years is Olympic Maximum #716 Semi-Transparent Cedar Naturaltone water-based stain (soap and water clean-up). After annual re-staining of the vertical deck portions for all these years, you can barely distinguish any wood grain and the color resembles a semi-gloss brown. It was re-stained July 10, 2019 and the wood and stain is in excellent condition. I want to keep this color on the vertical portions of the deck. The horizontal deck portions mentioned in the 8/11/19 post were replaced with new pressure treated pine on July 19, 2019.
    With this additional information, can you better determine if the R-A-D process runoff from the horizontal deck surfaces will affect these portions will affect this existing stain?
  • We will reply to your comment shortly
    Tom · 08/11/2019
    I will be using the Restore-A-Deck Kit to prep the new wood on my deck and staining the new wood with TWP 1515 Honeytone stain. These newly replaced pressure treated pine rail tops, steps, bench and main deck floor have vertical parts of the deck (rail posts, fascia boards, support structure) below them that have darkened from several years of coating with a semi-transparent natural cedar color. I want those vertical parts to remain that color (essentially having a 2-tone deck).
    Will the run-off from the R-A-D cleaner and brightener processes affect the existing stain on these dark vertical parts of the deck? If so, what do you recommend to prevent this from occurring? I will be rinsing these vertical parts off thoroughly when each step is completed.
    • We will reply to your comment shortly
      TWP Stains · 08/11/2019
      The runoff could have some effect on the current stain as this product is designed to clean but it would depend on the stain brand and current condition of the stain. There would not be a way to prevent this if it happens.
  • We will reply to your comment shortly
    Tom Zuffa · 08/11/2019
    I will be staining new pressure treated pine on the horizontal surfaces (rail tops, steps, built-in bench and main deck floor) with TWP 1515 Honeytone stain.
    The Restore-A-Deck Restoration Kit cleaner instructions say to leave cleaner on deck surface for 15 minutes before rinsing. The R-A-D brightener says to apply brightener to entire surface but does not say for how long to wait before rinsing. Would this also be 15 minutes to wait before rinsing?
  • We will reply to your comment shortly
    Paul · 08/08/2019
    Can I clean and brighten on the same day? Deck is a year old, pressure treated pine. First time staining this deck.
    • We will reply to your comment shortly
      TWP Stains · 08/08/2019
      No, TWP cannot be stained the same day as the prep. Must wait 48 hours after to prep for the wood to dry.
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    Heidi Neilson · 08/03/2019
    Hi, we have a rough cut redwood fence that was newly installed about a year ago, just before we bought our house. It doesn't appear to have been sealed in any way, and is almost completely the new bright wood color. We're going to stain with 1501 Cedartone, but since we don't really have any effects of aging to wash away, do we need to prep with the cleaner and brightener? Would a mild soap, do get environmental dirt and dust off do the trick this time around? Thanks!
    • We will reply to your comment shortly
      TWP Stains · 08/04/2019
      Use the Kit for the proper prep. Thanks
  • We will reply to your comment shortly
    Stephanie · 08/03/2019
    We have a cedar front porch that we are planning to clean and stain. How does one clean the cedar ceiling? It seems like the product will drip down on our heads and everywhere?
    • We will reply to your comment shortly
      TWP Stains · 08/03/2019
      Yes, it is hard to prep and stain a ceiling. Good news is that the Gemini Restore kit is eco-friendly and will not harm you.
  • We will reply to your comment shortly
    RMK · 08/01/2019
    Hello! We are in central Michigan and had a new 300sf cedar KDAT deck built. We are planning on using the Gemini cleaner/brightener and then a TWP stain we like based on samples on scraps (a semi: Honey, Cedar or Pecan), once the moisture gets below 15%. Question is: sunscreen from a low-on-aerosol can got sprayed/dripped on several thirsty boards and gentle scrubbing with Dawn and warm water didn't do the trick. Will the Gemini take out the oil stains or should we just have the boards replaced? Try the cleaner and stain and then replace? Thanks in advance!
  • We will reply to your comment shortly
    Mark Clements · 07/31/2019
    I have a pressure treated deck with 2-3 coats of behr natural stain covering it. What should I use to remove the old stain before putting down TWP 100.
  • We will reply to your comment shortly
    Joe Hatlelid · 07/30/2019
    I have a 14x14 deck built in Sep 2018 from new pressure treated wood from Lowes. It has weathered to a light gray. I'm ready to stain it. Should I use the Gemini Restor a Deck Kit with both cleaner and brightener first before staining with TWP 1520? I live near St Louis, MO - it's pretty warm now. The picture shows deck boards below 2 samples I stained with TWP 1515 and 1520.
    • We will reply to your comment shortly
      TWP Stains · 07/31/2019
      Yes, use the Gemini Restore Kit for prep.
  • We will reply to your comment shortly
    KH702 · 07/30/2019
    My father and I made 3- 8ft x 2ft bridges out of redwood. We live in Las Vegas. I plan to order the TWP 1511 California Redwood stain 1 gallon. According to the other posts, it seems, to have a successful stain, I need to let the wood weather for a few months. Is this true? Should I leave it out in the Vegas sun? And when it's cooler then should I clean it with the Restore-A-Deck, then use the Brightener, and then finally stain? Thank you.
  • We will reply to your comment shortly
    Jerry · 07/21/2019
    I applied TWP to a fully stripped deck that was prepped as per your instructions. This was done two years ago and it need recoated this year. Can I power was and scrub the deck to clean or do I need to uses the Gemini restore a deck?
    • We will reply to your comment shortly
      TWP Stains · 07/22/2019
      Use the Gemini Kit while pressure washing for prep.
  • We will reply to your comment shortly
    Mark Buckner · 07/19/2019
    I have about 600sf total horizontal surface to clean, brighten and stain. About 60sf of that is 2x10 railing, the rest is deck. All is cedar. I am hoping the one kit will stretch to clean the vertical surfaces - balusters and posts which are in much better shape than the deck/rail. Your opinion on that?

    I believe I need to do this in sections to keep the cleaner from drying out, correct? Do I need to do the railing above each section at the same time, cleaning before the deck so that any cleaner that drips off will be hitting decking that is not yet cleaned, or am I over-analyzing this?

    Second, is it important to clean and brighten everything in one continuous process? I may have to split this project up into several evenings after work if I can't get it all done in one day.

    Last, what effect does temperature have on the cleaner and brightener? It is super hot here in Missouri right now. I know from past experience that the TWP Stain soaks in better if the wood is not super hot and wonder if the Restore-A-Deck is similar.

    Thanks for your help!
    • We will reply to your comment shortly
      TWP Stains · 07/19/2019
      You should be okay with one kit. Yes, you are overthinking it. Do all railings first, do all flooring. Rinse well and then brighten all at once. Temps will not affect the pre[ products outside of drying it out. Just mist with water while working to keep it wet.
  • We will reply to your comment shortly
    James · 07/16/2019
    I have a deck ~900sf. I see in one of the pictures of Gemini restore a deck, it says 1 kit will clean up to 1000sf. I used the calculator at the bottom of the web page and it said I would need 2 restore a deck kits and 9 gallons of stain. I would like to not over buy and have a lot of the restore a deck left over if possible, so I wanted to ask for clarification. Thanks!
    • We will reply to your comment shortly
      TWP Stains · 07/17/2019
      One kit will clean on average about 750 sq feet. In some cases, it can clean more or up to 1000. New wood, etc.
  • We will reply to your comment shortly
    KCMO816 · 07/15/2019
    Is the cleaner and brightener safe for a house in case of the accidental splash while cleaning/brightening the deck or does the house need to be protected using plastic for instance?
    • We will reply to your comment shortly
      TWP Stains · 07/15/2019
      It will be safe for the house.
      • We will reply to your comment shortly
        KCMO816 · 07/16/2019
        Should I protect the house if I use a stain stripper?
        • We will reply to your comment shortly
          TWP Stains · 07/17/2019
          The stripper will not remove paint on the house. Just make sure to rinse well before and after applying the stripper and you should be okay.
  • We will reply to your comment shortly
    Brendon · 07/14/2019
    I have a two year old deck made out of pressure grated wood that has never been stained. I plan on sanding it to make it more smooth. I would like a vibrant golden finish. What should I use and in what order?
    • We will reply to your comment shortly
      TWP Stains · 07/14/2019
      Prep with the Gemini Restore Kit. If you sand do not sand finer than 80 grit. Look at Honeytone color.