FHB Logo Facebook LinkedIn Email Pinterest Twitter X Instagram Tiktok YouTube Plus Icon Close Icon Navigation Search Icon Navigation Search Icon Arrow Down Icon Video Guide Icon Article Guide Icon Modal Close Icon Guide Search Icon Skip to content
Subscribe
Log In
  • How-To
  • Design
  • Tools & Materials
  • Restoration
  • Videos
  • Blogs
  • Forum
  • Magazine
  • Members
  • FHB House
  • Podcast
Log In

Discussion Forum

Discussion Forum

Sealing cedar decks

| Posted in General Discussion on July 16, 2002 03:04am

Can I get peoples opinions on using a wood sealer on a cedar deck. ie Thompsomns water sealer!

I personally don’t like the idea but my mother in law keeps getting conflicting advice

 

Reply
  • X
  • facebook
  • linkedin
  • pinterest
  • email
  • add to favorites Log in or Sign up to save your favorite articles

Replies

  1. User avater
    goldhiller | Jul 16, 2002 06:01am | #1

    Use the water repellant. Use a penetrating water repellant, e.g., Thompson's is a good product and is readily available whether you choose the "water seal" or "wood protector". Don't use a film type finish, e.g., Flood's CWF (clear wood finish) or any other film type finish unless you relish the idea of watching them peel, blister, and flake off, leaving you with the job of stripping it off and redoing the job year after year. Sikken's makes a excellent product for your purpose, also.

  2. Piffin | Jul 16, 2002 06:21am | #2

    Ugh!

    Thompsons is just a wax based float that you'll be redoing every other year.

    Penetrating oils are the way to go.

    Excellence is its own reward!
    1. Handydan | Jul 16, 2002 11:24am | #3

        Is it to late to consider a composite deck instead?  If so then I vote for the penetrating style of finish.  I'm not sure, but I think that the oils in the cedar may give the films a lot of trouble.

      Dan

  3. TomT226 | Jul 16, 2002 08:04pm | #4

    Got a 17 year old cedar deck that's been treated with the origional

    Thompson's water seal once a year. I usually power wash it, let it dry for a couple of days, and then put on one heavy coat of Thompson's. This deck has outlasted one treated pine deck I had in another area.

    1. jimblodgett | Jul 16, 2002 10:50pm | #5

      I agree with whoever said to use a penetrating oil instead of a product that forms a skin over the wood.  I have CWF on my cedar siding and Penofin on my deck.  I like them both.

      I think composite decking looks like hell and is too expensive.  I'd much rather do the maintanance required for a wood deck than have that crap on my house.

  4. Redfly | Jul 17, 2002 12:59am | #6

    This probably is not apropos to your situation, but I once used Thompson's Water Seal on a beautiful blind-nailed redwood deck around a swimming pool.  It was spec'd by the architect against my recommendation.  We did 2 coats, following exactly the recommendations on the can as to time of penetration, wiping of excess, waiting time between coats, etc.

    When the thing was finished, the first time a person came out of the pool and walked across the deck it left black footprints across the deck.  After a few days, the deck looked like s--t, the owners were furious and the architect was backtracking.  In the end, the only thing we could figure to get the stuff off was to scrub the deck with a stiff brush and straight Simple Green cleaner - cost the owner an extra $1K to clean up the mess and apply another sealer (I think we used Penofin).

    It was a miserable experience and I will NEVER use Thompson's again.  By the way, we called tech supt @ Thompson's and they weaseled out of any responsibility by saying we probably applied it outside the recommended temp range, which I think was 65-75 degrees or something.  This was in Palo Alto, CA, where you couldn't ask for better weather conditions.

    Thompsons?   NEVER!!!!!!!!!!!!!!!!!!!!!!

    Thanks for letting me vent after holding it in for all these years!!

  5. TomMoen | Jul 17, 2002 06:22am | #7

    Thompsons is crap. 

    Penofin ROCKS!

    Tom

    1. nailbender40 | Jul 17, 2002 06:45am | #8

       Thumbs up Tom. Penofin has never let me down.

    2. flintin | Jul 19, 2002 05:29am | #9

      Who makes Penofin and do you know if it is available in Canada?

      1. jimblodgett | Jul 19, 2002 06:34am | #10

        Poke around here http://www.penofin.com. they should be able to steer you towards a dealer nearby. Brinkmann for president in '04

        1. xMikeSmith | Jul 19, 2002 06:40am | #11

          blodgett... get a life....while you're renewing your finish on your cedar deck.. i'll be playing golf and enjoying my Trex... hah, hah, hahMike Smith   Rhode Island : Design / Build / Repair / Restore

        2. rreed40 | Jul 19, 2002 06:55am | #12

          I gotta chime in Jim, the day for cedar decks is gone....its plastic bags, milk cartons and sawdust...which, by the way, will never chip peel crack rot check or warp OR require toxic sealers to be poured on it.

          1. jimblodgett | Jul 19, 2002 07:26am | #13

            "To each his own" you guys.  Some people don't mind doing a  little maintanance on their home, some people like plastic.  Either way is no skin off my nose.  I just know what I like, and what I don't like.

            Hell, SOME people actually pay good money for F*rds.  If you can believe that.

            Brinkmann for president in '04

          2. User avater
            MikeS | Jul 19, 2002 07:30am | #14

            Jim,

            To quote Kermitt the frog

            "It ain't easy being green" :)

            Mike

            It's O.k. to think out of the box,           Just don't walk off of the plank!

          3. Recko | Jul 19, 2002 07:35pm | #15

            Smitty,

            I'm disappointed in you...putting down a plastic deck and all...and you call yourself a builder!!!!! Fer cripes sakes!!

            Last house we owned I added a cedar deck (no plastic here Smitty!!) I sealed it with a product called Total Wood Protectant distributed by MFG Distributing, Atlanta, GA, 404-355-0668.

            I applied their Cedartone #201 finish and it kept the cedar looking like cedar. You do need to reapply it periodically, but it looked beautiful!!!

            Plastic deck.....Hey James DuHamel, can we have a rule at your Fest?? No plastic allowed.

            If I had known that, I would have excorted Mike to the door at our get-together!!!"My mother failed to see the irony in calling me a sonofabitch" - Jack Nicholsen

          4. xMikeSmith | Jul 19, 2002 09:00pm | #16

            look , bozo....it's   KERMIT , with 1 "T"........

            an ur rite, it ain't easy bein green....

            an doan confuse me with Mr. Toad.... he may have been drivin a Jimmy.. but i likes my FORDS....Mike Smith   Rhode Island : Design / Build / Repair / Restore

  6. decks | May 08, 2011 12:45pm | #17

    Thomson Water Sealant Sucks

    I had the same thing happen. Sealed freshly sanded and cleaned redwood deck exactly according to specs. It is  full of black footprints now. Thompson's sucks.

Log in or create an account to post a comment.

Sign up Log in

Become a member and get full access to FineHomebuilding.com

Video Shorts

Categories

  • Business
  • Code Questions
  • Construction Techniques
  • Energy, Heating & Insulation
  • General Discussion
  • Help/Work Wanted
  • Photo Gallery
  • Reader Classified
  • Tools for Home Building

Discussion Forum

Recent Posts and Replies

  • |
  • |
  • |
  • |
  • |
  • |
View More Create Post

Up Next

Video Shorts

Featured Story

FHB Summit 2025 — Design, Build, Business

Join some of the most experienced and recognized building professionals for two days of presentations, panel discussions, networking, and more.

Featured Video

Micro-Adjust Deck-Baluster Spacing for an Eye-Deceiving Layout

No math, no measuring—just a simple jig made from an elastic band is all you need to lay out a good-looking deck railing.

Related Stories

  • Podcast Episode 692: Introduction to Trade Work, Embodied Carbon, and Envelope Improvements
  • FHB Podcast Segment: Embodied Greenhouse Gas Emissions and the Building Codes
  • Old Boots Learn New Tricks
  • Install Denim Insulation Like a Pro

Highlights

Fine Homebuilding All Access
Fine Homebuilding Podcast
Tool Tech
Plus, get an extra 20% off with code GIFT20

"I have learned so much thanks to the searchable articles on the FHB website. I can confidently say that I expect to be a life-long subscriber." - M.K.

Get home building tips, offers, and expert advice in your inbox

Signing you up...

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
See all newsletters
See all newsletters

Fine Homebuilding Magazine

  • Issue 332 - July 2025
    • Custom Built-ins With Job-Site Tools
    • Fight House Fires Through Design
    • Making the Move to Multifamily
  • Issue 331 - June 2025
    • A More Resilient Roof
    • Tool Test: You Need a Drywall Sander
    • Ducted vs. Ductless Heat Pumps
  • Issue 330 - April/May 2025
    • Deck Details for Durability
    • FAQs on HPWHs
    • 10 Tips for a Long-Lasting Paint Job
  • Issue 329 - Feb/Mar 2025
    • Smart Foundation for a Small Addition
    • A Kominka Comes West
    • Making Small Kitchens Work
  • Issue 328 - Dec/Jan 2025
    • How a Pro Replaces Columns
    • Passive House 3.0
    • Tool Test: Compact Line Lasers

Fine Home Building

Newsletter Sign-up

  • Fine Homebuilding

    Home building tips, offers, and expert advice in your inbox.

  • Green Building Advisor

    Building science and energy efficiency advice, plus special offers, in your inbox.

  • Old House Journal

    Repair, renovation, and restoration tips, plus special offers, in your inbox.

Signing you up...

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
See all newsletters

Follow

  • Fine Homebuilding

    Dig into cutting-edge approaches and decades of proven solutions with total access to our experts and tradespeople.

    Start Free Trial Now
    • Facebook
    • Instagram
    • X
    • LinkedIn
  • GBA Prime

    Get instant access to the latest developments in green building, research, and reports from the field.

    Start Free Trial Now
    • Facebook
    • YouTube
  • Old House Journal

    Learn how to restore, repair, update, and decorate your home.

    Subscribe Now
    • Facebook
    • Instagram
    • X
  • Fine Homebuilding

    Dig into cutting-edge approaches and decades of proven solutions with total access to our experts and tradespeople.

    Start Free Trial Now
    • Facebook
    • Instagram
    • X
    • LinkedIn
  • GBA Prime

    Get instant access to the latest developments in green building, research, and reports from the field.

    Start Free Trial Now
    • Facebook
    • YouTube
  • Old House Journal

    Learn how to restore, repair, update, and decorate your home.

    Subscribe Now
    • Facebook
    • Instagram
    • X

Membership & Magazine

  • Online Archive
  • Start Free Trial
  • Magazine Subscription
  • Magazine Renewal
  • Gift a Subscription
  • Customer Support
  • Privacy Preferences
  • About
  • Contact
  • Advertise
  • Careers
  • Terms of Use
  • Site Map
  • Do not sell or share my information
  • Privacy Policy
  • Accessibility
  • California Privacy Rights

© 2025 Active Interest Media. All rights reserved.

Fine Homebuilding receives a commission for items purchased through links on this site, including Amazon Associates and other affiliate advertising programs.

  • Home Group
  • Antique Trader
  • Arts & Crafts Homes
  • Bank Note Reporter
  • Cabin Life
  • Cuisine at Home
  • Fine Gardening
  • Fine Woodworking
  • Green Building Advisor
  • Garden Gate
  • Horticulture
  • Keep Craft Alive
  • Log Home Living
  • Military Trader/Vehicles
  • Numismatic News
  • Numismaster
  • Old Cars Weekly
  • Old House Journal
  • Period Homes
  • Popular Woodworking
  • Script
  • ShopNotes
  • Sports Collectors Digest
  • Threads
  • Timber Home Living
  • Traditional Building
  • Woodsmith
  • World Coin News
  • Writer's Digest
Active Interest Media logo
X
X
This is a dialog window which overlays the main content of the page. The modal window is a 'site map' of the most critical areas of the site. Pressing the Escape (ESC) button will close the modal and bring you back to where you were on the page.

Main Menu

  • How-To
  • Design
  • Tools & Materials
  • Video
  • Blogs
  • Forum
  • Project Guides
  • Reader Projects
  • Magazine
  • Members
  • FHB House

Podcasts

  • FHB Podcast
  • ProTalk

Webinars

  • Upcoming and On-Demand

Podcasts

  • FHB Podcast
  • ProTalk

Webinars

  • Upcoming and On-Demand

Popular Topics

  • Kitchens
  • Business
  • Bedrooms
  • Roofs
  • Architecture and Design
  • Green Building
  • Decks
  • Framing
  • Safety
  • Remodeling
  • Bathrooms
  • Windows
  • Tilework
  • Ceilings
  • HVAC

Magazine

  • Current Issue
  • Past Issues
  • Magazine Index
  • Subscribe
  • Online Archive
  • Author Guidelines

All Access

  • Member Home
  • Start Free Trial
  • Gift Membership

Online Learning

  • Courses
  • Project Guides
  • Reader Projects
  • Podcast

More

  • FHB Ambassadors
  • FHB House
  • Customer Support

Account

  • Log In
  • Join

Newsletter

Get home building tips, offers, and expert advice in your inbox

Signing you up...

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
See all newsletters
See all newsletters

Follow

  • X
  • YouTube
  • instagram
  • facebook
  • pinterest
  • Tiktok

Join All Access

Become a member and get instant access to thousands of videos, how-tos, tool reviews, and design features.

Start Your Free Trial

Subscribe

FHB Magazine

Start your subscription today and save up to 70%

Subscribe

Enjoy unlimited access to Fine Homebuilding. Join Now

Already a member? Log in

We hope you’ve enjoyed your free articles. To keep reading, become a member today.

Get complete site access to expert advice, how-to videos, Code Check, and more, plus the print magazine.

Start your FREE trial

Already a member? Log in

Privacy Policy Update

We use cookies, pixels, script and other tracking technologies to analyze and improve our service, to improve and personalize content, and for advertising to you. We also share information about your use of our site with third-party social media, advertising and analytics partners. You can view our Privacy Policy here and our Terms of Use here.

Cookies

Analytics

These cookies help us track site metrics to improve our sites and provide a better user experience.

Advertising/Social Media

These cookies are used to serve advertisements aligned with your interests.

Essential

These cookies are required to provide basic functions like page navigation and access to secure areas of the website.

Delete My Data

Delete all cookies and associated data