Whitco Blasting LLC is an official PERMA-CHINK authorized dealer and installer.



Download the "Inspection Checklist" in PDF here.

When inspecting the exterior of the building, look for:

  1. Landscape plants within 36 inches of exterior walls.
  2. Gutters & down spouts everywhere in good working order.              
  3. Any wood within 12 inches of (or especially in contact with ) ground.
  4. Wood piles at least 18 inches away from house. Look for general patterns of fading of the finish.
  5. Look more carefully at areas that are most exposed to weather.
  • South and West walls usually get more sun exposure.
  • Walls facing prevailing winds are exposed to more rain.

Look for patterns of weathering.

  • Fading of the finish.
  • Water staining on exposed log ends.
  • Water staining on exposed walls.

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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.

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Most preservatives offer some type of guidelines to the actual life expectancy of the product, but as a rule of thumb, left exposed to the elements, you can expect two to four years before a reapplication is necessary.

Typically, Shell-Guard is applied with a garden type pump sprayer, although for smaller jobs, a hand held mist type sprayer is more efficient. When in doubt, follow application recommendations found on the label.

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Lifeline™ finishes bring your log homes appearance to life. All Lifeline products are waterborne, breathable, flexible, durable wood finishes, which also highlight the natural beauty of your log home. There are Lifeline products available for both your interior and exterior walls.

Download Stains and Finishes Application Guide PDF here.

What are the benefits of applying an exterior finish?

  • To make your home look it’s best
  • To protect your home from UV damage
  • To protect your wood from water damage
  • To provide protection from unsightly mold and mildew

There is no secret in retaining the beauty of your log home. A little care and maintenance along with the use of quality products designed specifically for log homes will not only keep your home looking great, but will also preserve the integrity of the logs and help prevent costly repairs. You can do no better than selecting any of Perma-Chink Systems Family of Log Home Products.

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Download "Log Home Sealants Application Guide" PDF here.

Since 1981, Perma-Chink Systems' log home sealants have proven themselves on thousands of chinked and chinkless style log homes to become the most widely applied log home sealants in the world and simply the best by every measure.

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stains & finishes

  1. How to apply Lifeline™ exterior finishes 

  2. How to apply Lifeline™ interior finishes 

  3. How to apply Lifeline™ stain over existing finishes 

  4. Prelude™ wood surface sealer and primer 

  5. Importance of UV Boost™ 

  6. How to apply Log End Seal™ 

  7. How to calculate square footage for wood stain application 

  8. Role of Lifeline Advance™ clear topcoat 

  9. Lifeline™ Interior color coats and clear topcoats 

  10. Lifeline™ Advance topcoat, Gloss or Satin finish? 

  11. Why we recommend water based finishes (water vs oil) 

  12. Why wood homes need pigmented (color) finishes? 

  13. Recommended airless sprayer tip size 

  14. Finishing hardwood floors 

  15. Applying Sure Shine™ clear finish 

  16. Importance of mixing and boxing Lifeline™ finishes 

  17. Properly mixing Lifeline Advance™ (Satin) clear topcoat 

  18. Applying products in hot weather 

  19. Application temperature range 

  20. Maintenance stain and finish coats for log homes 

  21. Dynamics of weathering log home finishes 

  22. Applying a finish to gray oxidized wood 

  23. Sealers, stains and topcoats explained 

  24. Importance of back-brushing when applying stains and finishes 

  25. Importance of using a quality stain brush 

  26. Explanation of VOC's (Volatile Organic Compounds) 

  27. What is a breathable film forming finish 

  28. Penetration of wood finishes explained 

  29. Effects of pH on wood surfaces 

  30. Moisture content of wood explained 

  31. How moisture meters work 

  32. Should topcoats "bead" water? 

  33. Additives for Lifeline™ finishes 

  34. Removing dried finishes from unwanted surfaces 

  35. Coating wood shakes and shingles

Wood preservatives

  1. How do borates work on wood? 
  2. How to best apply borates 
  3. Washing and staining after borate treatment 
  4. Storing borate solutions 
  5. Preventing mold growth on bare wood 
  6. Freeze-Thaw stability

Wood restoration

  1. How to remove existing wood finishes 
  2. Finish removers-airless sprayer set up 
  3. Media blasting vs pressure washing 
  4. Pressure washing facts 
  5. Sanding tips 
  6. Osborn™ brush uses 
  7. Inspecting your log home 
  8. Inspecting check list 
  9. Landscaping tips for log home owners 
  10. How to Use M-Balm™ and E-Wood™ 
  11. How to repair log damage 
  12. Moisture content of wood explained 
  13. How moisture meters work 
  14. Mold and mildew 
  15. Preventing mold growth on bare wood 
  16. Wood decay 
  17. Effects of pH on wood surfaces 
  18. Consequences of using chlorine bleach 
  19. Cleaning guidelines 
  20. How to use Wood Renew™ and Log Wash™ cleaners 
  21. Applying a finish to gray oxidized wood 
  22. Mill glaze and effects on wood finishes 
  23. Cedar Wash™ for cleaning 
  24. Oxcon™ oxalic acid to brighten your wood 
  25. Spot cleaning and stripping 
  26. Blue stain in wood 
  27. Water stains in wood 
  28. Flavonaoids in wood 
  29. Resin bleed in wood 
  30. Avoiding metallic contamination 
  31. Avoid using steel wool and wire brush 
  32. Application temperatures range 
  33. Applying products in hot weather 
  34. How to calculate square footage 
  35. Freeze-Thaw stability 
  36. Industry Wood Terms

Chinking and sealants

  1. How to apply Energy Seal™ and Woodsman™ 
  2. Backing materials for log home sealants 
  3. Chink Paint® vs chinking 
  4. Chink Paint® 
  5. How to seal checks on face of logs 
  6. Check-Mate™ 2 colors while curing 
  7. Calculating linear feet of log home chinking and sealants 
  8. Curing and drying times 
  9. Removing old caulk 
  10. Bulk loading guns 
  11. Protecting uncured chinking 
  12. Thermal efficiency of chink joints 
  13. Energy audit 
  14. Finding air leaks 
  15. Application temperatures range 
  16. Applying products in hot weather 
  17. Freeze-Thaw stability


  1. Pest proofing your home
  2. Carpenter ants 
  3. Carpenter bees 
  4. Wood boring beetles  
  5. Woodpeckers 
  6. Ladybugs and boxelder 
  7. Parasitic wasps 
  8. Wildlife damage