Sashco Log Builder Caulking

 Log Builder Caulking by Sashco is a log home caulking sealant with a limited lifetime warranty. Sashco Log Builder Caulking is designed to meet the demanding sealant needs log homes and is compatible with most construction materials. Sashco Log Builder Caulking is water resistant in 1-4 hours. Sashco Log Builder caulking has superior water resistance. Plus excellent resistance to UV rays. Sashco Log Builder Caulking develops powerful adhesion, remains a rubbery sealant for many years. Not only does Log Builder caulking have powerful adhesion to sound wood - it sticks to a lot more. Granted, you want your sealant to have superior adhesion to all species of wood, but Sashco Log Builder caulking adheres to a variety of surfaces. After all, your log home doesn't just consist of wood. What about windows, doors, and baseboards made of a different material? Sashco Log Builder caulking sticks to most building materials including glass, plastics, and metals. So you can seal around those windows, doors and baseboards effectively. And you can fill checks and cracks since Log Builder caulking adheres to most log home stains and finishes too. Sashco Log Builder caulking has water-based chemistry that is environmentally friendly. All Sashco caulking including Log Builder Caulking is recommended for use with Backer Rod when used with logs. Made in the USA. 

 

Fundamental Caulking Application Guidelines

• Proper substrate preparation and application are imperative for product longevity. Read this entire info sheet (LBR 002) before applying any product. 

• Make certain there is compatibility between your stain and Log Builder. We recommend Sashco’s Capture®/Cascade® or Transformation Stains® for exterior applications and Symphony® interior clear coat for beautiful long-term protection. Best results are obtained when Log Builder is applied to clean, stained wood. Call Sashco at 800-767-5656 for guidance if in doubt. 

• Check the weather forecast. Finishing products are best-applied in moderate weather conditions, i.e., out of direct sunlight, and in dry, warm conditions.. 

• Check the log surface temperature. The surface temperature should be between 40˚F (4˚C) – 90˚F (32˚C). 

• It is always best to use a bond breaker (usually backer rod) before caulking. Sashco strongly recommends the use of backer rod, especially if the home is new and/or the logs are subject to significant movement. If a bond breaker is not used, expect more caulking repairs. 

• Tool Log Builder to help ensure good contact with the log surfaces, especially to the upper log; this will greatly aid adhesion. 

• Ideal sealant depth is 1/2 of the joint width, but no less than 1/4” and no more than 1/2”.

• Assemble tools and equipment: - Backer rod - Caulking guns - Trowels, spatulas, or foam brushes for tooling - Clean water and rags - Plastic sheets to cover the caulking if wet weather moves in - Staple gun & staples

Surface Preparation

Best results are obtained when Log Builder is applied to wood that has been previously coated with a compatible and thoroughly cured stain. In fact, Log Builder has a Limited Lifetime Warranty when applied over any of Sashco’s stains: Capture Log Stain or Transformation Stain. 

If not using a Sashco stain, be sure to confirm its compatibility with Log Builder. If the stain is older but still intact, clean the log surfaces thoroughly to remove dirt, pollen, bird droppings, and other surface contaminants.

The USDA Forest Products Laboratory and other researchers around the world have recently reported that surface wood exposed to sunlight for as little as 1-2 weeks can become significantly damaged and unsound which may lead to premature adhesive failure of coatings. Such surface wood damage has the potential to also hurt Log Builder’s (or any caulk’s) adhesion. Once bare wood has been properly cleaned and prepped to remove unsound wood, stain should be applied as soon as possible. Follow with Log Building caulking.

A few sealers, especially those high in wax content or non-drying oils, may interfere with adhesion. Some of these coatings can hurt any caulk’s adhesion—whether applied before or after the caulk—so we advise against their use. Check with Sashco if you have questions about your particular product.

 

Questions on maintaining the legacy of your wood structure? Give us a call- 1-800-359-6614

Pickup in store - or ship to your door -in whichever woods your cabin dwells.

 Schroeder Log Home Supply, Inc. 

1101 SE 7th Avenue

Grand Rapids MN 55744

1-800-359-6614