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LogFlex® Chinking
Our professional-grade chinking compound is engineered for long-term performance in demanding log home environments.
✔ 300% flexibility — moves naturally with log expansion and settling
✔ Superior adhesion — up to 2× stronger bond to wood than leading brands
✔ Freeze-thaw resistant for harsh climates
✔ Cold weather flexibility — remains flexible below freezing
✔ UV and weather resistant for long exterior life
✔ Designed specifically for log homes and timber structures
Developed through laboratory testing and field experience, LogWorks chinking delivers a durable, flexible seal that protects log homes from air infiltration, moisture intrusion, and seasonal movement.
LogFlex® Performance Comparison
| Property | ASTM | Perma Chink |
Log Jam | LogFlex® |
|---|---|---|---|---|
| Viscosity | — | 215k | 469k | 315k |
| Elongation | D2370 | 214 | 160 | ★ 300 |
| Dry Adhesion Birch | D903 | 13.26 | 9.75 | ★ 21.82 |
| Dry Adhesion Pine | D903 | 12.68 | 10.72 | ★ 22.25 |
Formulated To Prevent Common Chinking Failures
(EXP results represent LogFlex® testing)
Dirt Resistance
Formulated to resist dirt absorption and staining. LogFlex® maintains a cleaner appearance over time, reducing discoloration compared to typical chinking.
Application Blistering
Engineered to resist blistering during application. LogFlex® maintains a smooth surface even when exposed to heat or direct sun during installation.
Adhesion
Designed for strong, long-lasting adhesion to wood surfaces. As logs expand and contract over time, LogFlex® remains securely bonded to the substrate.
Flexibility
High elongation allows LogFlex® to move with natural log movement. This flexibility helps prevent cracking and separation over time.
Built To Last - Not Fail
Resists heat and sun during application, maintains adhesion as logs move, and stays cleaner longer than typical chinking.
Adhesion Failure
Heat Blistering
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