Adhesive and Sealant Applications & Tools
Experts in the tools used for specific applications. The tool may cost you very little, but it accounts for over 50% of the success in the application.
Monday, May 7, 2018
How to Tool Sealants in Horizontal Joints
The best advice we can pass along for tooling sealants in saw cut and
expansion joints in concrete slabs comes from Wayne BelCher from United
Professional Caulking in Seattle. He is a recognized expert in the
field and has published a reference book on waterproofing.
We recently watched him lead a team that was doing just this type of work. His advice was to use a combination of spatulas with both Passive and Aggressive tip shapes.
TOOLS NEEDED:
For more information on our 258 Classic Spatula, 958 Streamline Spatula, or 922-G01 CAT Spatula see Product Bulletin 297F and Product Bulletin 345.
We recently watched him lead a team that was doing just this type of work. His advice was to use a combination of spatulas with both Passive and Aggressive tip shapes.
TOOLS NEEDED:
- (1) Passive Round Tip Spatula: 258 Classic Spatula or 958 Streamline Spatula
- (1) Aggressive Pointed Tip Spatula: 922-G01 CAT Spatula
- Caulk Gun. Suggested caulk gun B12S20
- Sealant of choice
- DISPENSE sealant into the joints, overfill them slightly.
- PUSH forward with along the joint with a passive or traditionally shaped (rounded tip) spatula (258 Classic Spatula or 958 Streamline Spatula). Smooth and remove the excess caulk by scooping it off the substrate.
- PULL the sealant back towards you using an aggressive shaped (pointed tip) spatula (922-G01 CAT Spatula),
Giving it the hourglass shaped profile that most sealant manufacturers
recommend for the best elongation characteristics. Take note of the
shallow angle of the spatula in this step.
FINSHED - Remember to clean off your spatulas for longer lasting tool!
For more information on our 258 Classic Spatula, 958 Streamline Spatula, or 922-G01 CAT Spatula see Product Bulletin 297F and Product Bulletin 345.
Labels: #caulking, #construction, #spatulas, tooling knives
Comments:
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I am pleased to see the technique of sealing a horizontal joint being addressed. My advice would be to use an empty caulking tube instead of the rounded spatula after the sealant is slightly overfilled. The empty caulking tube can go for longer distances and hold more material than a spatula. I agree with step 2, the finished results look much better when tooled with a pointed spatula.
Thanks for sharing this kind informative blog! I was looking for Joint Filler Board , information and I see this beneficial blog.
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