inspiration gallery summer2016

Inspiration Gallery

Get ready to be amazed with these inspiring images of log home interiors and exteriors.

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Featured Product

Perma-Chink is a flexible, textured log home chinking that seals the open gaps between logs to eliminate heat loss and air infiltration. Even though it looks and feels like traditional mortar, it's not. Perma-Chink is a pure acrylic that adheres to logs and stretches to maintain a tight seal by following log movement.

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DIY Section

Find How-Tos, Tech Tips, and Videos regarding our family of products.

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Restoration products to remove old finishes and make dirty or weathered wood look like new.



Special purpose wood preservatives to protect against termites, insects, wood rot, mold and mildew.

Stain and Finish


Beautiful wood finishes protecting your log home and bringing out the beauty of your exterior, interior, decks and millwork.

Seal and Chink


Flexible log home sealants for every weather-proofing job around your chinked or timber style log home.

Spot Cleaning and Stripping

“Never attempt to strip or clean a section of a wall without applying whatever you are using to the entire wall.”

For years this phrase was the key for obtaining a uniform surface in preparation for applying a transparent stain. In many cases, this phrase is still valid but with the introduction of some of the newer technology products and better methods of application, occasional spot cleaning and stripping can be accomplished without creating a problem.


Years ago the most commonly used finish removers contained sodium or potassium hydroxide. They were fairly effective for removing most types of paints and stains, but due to their extremely high pH, they darkened the wood as a result of alkali staining. If only a section of a wall was exposed to these products, it was almost impossible to obtain a consistent final color over the entire wall. That’s where the use of Oxcon™ came into play and why the use of oxalic acid became known as a Blonding Agent. Oxcon’s low pH helped brighten the wood back to its original color, but if it was only applied to sections of a wall, the resulting color would end up significantly different than the remainder of the wall. The solution to this problem was to apply Oxcon to the entire wall to even out the color of the bare wood and avoid a blotchy appearing finish.

Today’s finish removers are mostly based on organic solvents, and one of their most advantageous features is that they don’t change the color of the wood. When removing an old, tired oil finish, it is not unusual for pressure washing with just water and a mild cleaner like Log Wash™ or Wood ReNew™ to remove any residual pigments and extenders on surfaces directly exposed to the sun and weather. But underneath roof overhangs and shaded areas, the stain may still be in pretty good shape. There is nothing wrong with using S-100™, StripIt® or other organic solvents only on those spots where the finish is still adhering. Since they don’t change the color of the wood, you may not be able to see where these products were used.


Wood cleaners are a somewhat different story since they are designed to both clean and brighten the surface. It is rare that anyone would want to clean a section of a wall without cleaning the entire wall. Once a wall has been cleaned with Log Wash, Cedar Wash™, or Wood ReNew, there is nothing wrong with going back and spot cleaning areas that are still showing signs of dirt or discolorations with the same product.

Log Wash, Cedar Wash, and Wood ReNew are not interchangeable! Never attempt to clean part of a wall with Wood ReNew or Cedar Wash and the rest of the wall with Log Wash. Since Wood ReNewand Cedar Wash are alkaline, and Log Wash is acidic, there is a very good chance a chemical reaction will occur and the resulting color of the wood will differ. If Wood Renew has been used to remove grayed wood on an area of a wall, there is nothing wrong with using Log Wash afterward as along as the Wood Renew is completely rinsed from the wood surface, and it is applied to the entire wall to ensure a uniform color.

Chlorine bleach solutions are not recommended by Perma-Chink Systems and should never be used for spot cleaning. The more the surface is exposed to bleach, the more damage is done to the wood fibers, and the greater the chance that discolorations or adhesion issues will arise sometime in the future.

Oxcon Oxalic Acid

Now that most of the log home industry has followed our lead and stopped recommending chlorine bleach solutions for preparing logs and siding for a finish, the next most problematic surface preparation product that we encounter is oxalic acid. The use of Oxcon oxalic acid should be limited to eliminating inorganic discolorations, such as metallic tannate stains, strap marks, rust stains, and water stains.

Although the label clearly states “Do not spot-treat since this method of application can cause blotching”, there are some steps that can be taken that will allow localized discolorations to be spot treated while avoiding the risk of creating blotches on a wall.

The first step is to make sure the wall has been well cleaned using Wood Renew or Log Wash. Log Wash is preferable since the use of Wood ReNew will occasionally darken the wood a bit. If that occurs, a Log Wash solution (two cups of Log Wash per gallon of clean water) will typically brighten the wood back up. Once the surface is clean, bright and dry, a solution of Oxcon may be applied to those areas that show signs of metallic tannates or water stains. Make sure the Oxcon is diluted to the recommended one part Oxcon to four parts water ratio, and don’t leave it on the wood for more than 10 to 15 minutes. And whatever you do, don’t allow it to dry on the wood.

Now comes the most important step in the process, rinse, rinse, and rinse again. You want to be sure that ALL of the Oxcon is rinsed off of the wood. The best way to verify adequate rinsing is by using pH Strips. Oxcon is fairly strong acid. If the pH of the rinse water on the wall remains below 6.0, it is a good indication that some oxalic acid is still present on the wood.

Once the surface is dry, if the spot treated areas are the same color as the surrounding wood, you are ready to apply the first coat of finish. However if the treated spots stand out from the surrounding wood, you may have to go back and apply Oxcon to the entire wall to even out the color.


Last modified on Tuesday, 17 July 2018 21:22

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Your Wood Care Resource

Although Perma-Chink Systems (PCS) is the largest manufacturer of log home chinking and sealants, we make a complete line of quality wood care products. Wood Finishes, Wood Preservatives, Wood Cleaners and Restoration Products all are Made in the U.S.A. 

In 1981 PCS introduced flexible chinking to the log home industry to replace what was the standard at the time - concrete mortar. This revolutionary product, Perma-Chink Log Home Chinking, looked like authentic mortar but stretched and flexed to accommodate log movement while maintaining a tight seal for the life of the house.

Perma-Chink Systems is the log home building industry's trusted partner for the tightest, greenest, and most impeccably finished log homes in the world.


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Workshop & Log Home Show Schedule

Jan 31-Feb1 | Applicator-Only Workshop | Nashville, TN


Date & City, State

Workshop & Location


January 4-6

Log Home & Timber Show


Allentown, PA

Allentown Fairgrounds


January 18-20

The Log & Timber Home Show


Nashville, TN

Music City Center


January 25-27

Log Home & Timber Show


Columbus, OH

Ohio Expo Center


February 8-10

Log Home & Timber Show


Pittsburgh, PA

Monroeville Convention Center


February 22-24

The Log & Timber Home Show


Kansas City, MO

KCI Expo Center


February 23

PCS - Homeowner Workshop


Knoxville, TN

Knoxville Store


February 23

PCS - Homeowner Workshop


Petersburg, PA

Pennsylvania Store   ***Limit of 25 Attendees***


March 2-3

The Log & Timber Home Show


Atlanta, GA

Infinite Energy Forum


March 8-10

Log Home & Timber Show


Syracuse, NY

The Oncenter Convention Center


March 9

PCS - Homeowner Workshop


Stevensville, MT

Montana Store


March 16

PCS - Homeowner Workshop


Rifle, CO

Rifle Store


March 22-23

The Log & Timber Home Show


Minneapolis, MN

Earle Brown Heritage Center


March 29-31

The Log & Timber Home Show


Chicago, IL

Kane County Fairgrounds


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