Which product is applied to form surfaces to reduce adhesion of the cured concrete, aiding form removal?

• A. Parging coat
• B. Water
• C. Form releasing agent
• D. Sealant

Answer: (C)

This question tests understanding of how to prevent concrete from sticking to the forms during stripping. A form releasing agent is applied to the interior faces of the form before the concrete is poured. It creates a thin, slippery barrier between the form and the cured concrete, so the concrete releases easily when the form is removed. This helps prevent damage to the concrete face, reduces tearing or gouging, and gives a cleaner, smoother form finish.

Water isn’t used to reduce adhesion in this context; it won’t reliably prevent sticking and can interfere with curing or form integrity. A parging coat is a finishing material for masonry surfaces, not for formwork release. A sealant seals joints and prevents leaks, but it isn’t intended to minimize adhesion between concrete and form surfaces.