In today's economy energy efficiency is a subject that most people are aware of including log home owners and those people contemplating the purchase of a log home. With this in mind we occasionally get asked about the R-value of our chinking and/or backing materials since many people assume that they provide some insulation value to the exterior walls. In point of fact, neither the Perma-Chink nor the backing material contributes any significant insulation value to a wall. What they do is eliminate outside air infiltration into the home. This has a much greater impact on the overall energy efficiency of a home than adding a minor amount of insulation to a wall.

Although there is some controversy regarding its cause, the most commonly held theory about the formation of mill glaze is that it is created on logs, siding and trim by heat and mechanical compression generated during a high speed milling process. The combination of compressed wood fibers and high temperatures that melt the sugars, cellulose, and other water-soluble extractives present in the wood end up forming a surface glaze.

Do I have to remove old finish?

Over the past several years we have discovered many things about cleaning wood and existing finishes.

First and foremost is that chlorine bleach is not a good product to use. In addition to its potential for damaging the finish and bare wood fibers, its use and misuse contributes to a number of problems including the loss of film adhesion, discolorations due to tannin extraction, and the formation of iron tannates, streaks, blotches and premature failures of the finish system. We have also discovered that a number of wood and deck cleaners available at paint and hardware stores, home improvement centers and Do-It-Yourself outlets contain components that interfere with the proper performance of our finish systems.

With this in mind we have decided that the ONLY cleaning products approved for use with our finishes are those products supplied or recommended by Perma-Chink Systems, Inc. We are not doing this to increase our sales of cleaning products. It is simply because we have tested our cleaning products with our finish systems and have confidence that when properly used and applied, their use will result in the best possible appearance and performance of the final Lifeline™ finish. We cannot say the same about the use of other types and brands of wood cleaners and strongly discourage their use with any of our Lifeline stains.