ACI Adhesive Anchor Installer Certification Practice Exam

What action should be taken if a foil capsule appears hard before use?

1. Use it anyway as it may still function

2. Discard it immediately

3. Confirm pliability by gently squeezing

4. Soak it in warm water

The correct answer is: Confirm pliability by gently squeezing

The recommended action when a foil capsule appears hard before use is to confirm its pliability by gently squeezing it. This is crucial because the pliability of the capsule affects the adhesive's performance. A hard capsule might indicate that the adhesive has not been properly mixed, or it may have been compromised in some way. By gently squeezing the capsule, the installer can assess whether the contents are still usable and can ensure that the adhesive will flow properly when dispensed. If the capsule retains flexibility and is pliable upon testing, it is likely still in good condition for use. This step helps prevent potential failures that could arise from using a compromised product, thus ensuring a secure and effective adhesive bond. Other methods, such as soaking the capsule in warm water, may not necessarily address the condition of the adhesive itself and could potentially damage the capsule or alter its intended properties.