Log Builder is a log home caulk specifically designed to absorb log movement while maintaining a weatherproof seal.
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Log Builder is a log home caulk specifically designed to absorb log movement while maintaining a weatherproof seal. Most log movement occurs during the first few years, when logs lose the majority of their moisture content. This loss of moisture content causes the log to shrink and the joints to expand. Log Builder is ultra-elastic, which means it will stretch and compress with normal movement. Log Builder won’t crack, peel or pull away. Instead, it creates a tight seal to keep water, dust, bugs and wind from seeping into your home. Log Builder is the smooth sealant for milled and hand-crafted log structures as shown above.
Best results are obtained when Log Builder is applied to wood that has been previously coated with a compatible and thoroughly cured stain.
Log Builder is not a chinking and should be used only in joints under 2” wide. If the joints are wider, we recommend Log Jam.
It is always best to install backer rod before caulking. Sashco strongly recommends the use of backer rod.
Logs tend to take on water from rain and snow through cracks and checks; therefore, it is important to pay close attention to these openings and prep and seal them properly. Note: Most small checks should not be caulked. Only the larger ones (1/4” or larger) should be sealed with backer rod and caulk.
When using 5-gallon pails Cox bulk loading guns should be used. Use a caulking gun when using either the 29 oz. or 10.5 oz. cartridges of Log Builder. When using a cartridge, cut the spout at a 45˚ angle to desired bead size. Log Builder requires no heating prior to application but will dispense easier when kept warm before use.
Log Builder should be tooled directly after application to ensure good adhesion and a smooth looking bead. To ease the tooling process, mist Log Builder with water. Log Builder may be tooled with a damp foam paint brush. Work the material smooth, tooling Log Builder tightly to the surfaces. Keep a rag handy for clean up.
Log Builder is Stainable with latex coatings after a minimum of 24 hours curing (longer on wider joints) and after 5 days curing with most oil-based coatings.
Clean excess product off surfaces (before it cures) with a putty knife and/or a damp rag. Dispose of Log Builder in accordance with local regulations. Do not dispose of in drinking water supplies. Water may be used for cleaning hands, surfaces and equipment. Solvents are not required for clean-up.
Click here for this product’s Safety Data Sheets (SDS)
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