Sikaflex Technique

1/2 Case (12 tubes)


Case (24 tubes)


Sikaflex 219LM Polyurethane Log Home Sealant

Sikaflex 219LM formulation allows greater movement (plus or minus 50%) of joint width. It is generally used in new construction when shrinkage (loss of moisture) of logs or settling caused by the weight of the structure creates dynamic movement.

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Sikaflex Technique
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by Jacob Sangview on Sikaflex Technique
Easiest Caulk

I love this stuff because you don't have to worry too much what is going to be used on top of it. Some caulks get really fussy about the kinds of paints etc. you put over it. This stuff gets the job done without all the headache.


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Tack free time is 6 to 8 hours at 70 degrees & 50% RH, 3 hours to the touch, 7 to 10 days final cure. Elongation is 700% at break. Application temperature range is 20 degrees F to 100 degrees F. It can be painted over with water, oil or rubber based paints. It can be used to seal either interior or exterior openings in log homes. It is designed for joints with a maximum size of 1/2″ deep by 1′ wide when movement does not exceed plus or minus 25% of the total width of joint (class A sealant). It meets Federal Spec. TT-S-00230C, Type II, Class A and is approved by USDA, FDA and NSF.

Sikaflex-219 LM is a one-component, low-modulus, high performance, moisture curing polyurethane sealant with excellent adhesion to aluminum, FRP, steel, wood, masonry and most plastics with proper surface preparation. Conforms to Federal Specification TT-S-00230C, Type II, Class A, ASTM C-920, Type S, Class 100/50, Grade NS, AAMA 808.3 verified.

Exhibits excellent recovery making it ideal for sealing applications requiring high joint movement capability.

Customer Service is Available from 9am to 4pm EST

Call To Order by Phone or Inquire About a Product


Monday - Friday