16/06/2026
https://www.arichcellulose.com/en/news/854667609596887108.html❓ Wall Primer or Interface Agent—which one would you choose?
Many contractors and homeowners think they are the same product.
But actually:
👉 Wall Primer is designed for substrate reinforcement.
👉 Interface Agent is designed for bonding enhancement.
If the surface is dusty or prone to sanding, Wall Primer is usually the better choice.
If you're working on smooth concrete, old tiles, or insulation boards, an Interface Agent may deliver better performance.
Substrate preparation is often overlooked, but it directly impacts the long-term performance of putty, coatings, tile adhesives, and plaster systems.
Which one do you use most often?
A. Wall Primer
B. Interface Agent
Leave your answer in the comments 👇
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