Sleeve anchors have an epoxy resin that hardens and bonds the anchor in the hole.

• A. True
• B. It depends
• C. False
• D. Not specified

Answer: (C)

Sleeve anchors rely on a mechanical expansion to grip the hole rather than any adhesive resin. When you tighten the bolt, the inner portion pulls the sleeve to expand outward against the sides of the drilled hole. This expansion creates a secure hold through friction and mechanical interlock with the concrete or masonry. Epoxy resin bonding is used with chemical (adhesive) anchors, where the resin cures to bond the anchor to the hole walls. Since sleeve anchors achieve their hold by expansion, they do not involve epoxy, so the statement is not accurate.