All About Fasteners Episode 11: Using A7+ adhesive to install a threaded rod in concrete
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VideosThis short video explains why a contractor might want to use a chemical bond (adhesive) to install anchors.
In this short video, Andrea Galindo, Technical Specialist for ITW Construction Products Canada, demonstrates the correct way to use Red Head A7+ Quick-Cure Adhesive to install a threaten rod in concrete.
Why might a contractor want to use a chemical bond – like adhesive – to fasten anchors into concrete or masonry? Why not just place them mechanically?
As Andrea explains, some of the benefits of chemical (adhesive) bonds are: Potentially higher strength bonds (depending on the substrate), closer spacing between anchors, placement closer to the edge of the material, and installation in damp or even saturated conditions – among other benefits. (For technical specs for A7+ please visit the manufacturer’s website here.)
For a basic description of the difference between mechanical and chemical bonds for anchors, please see the preceding Episode 10 video here.
If you have any questions about this product, please leave a comment below, or email rkoci@canadiancontractor.ca.
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Why can’t we clean the hole on the concrete panel with a 7/16 plastic (or metallic) nosel, by inserting it deep into the hole and attaching it to vacuum cleaner. (Assuming of course that such a nosel exists or that it can be easily manufactured.)