Your tiles are lying to you

Welcome to Built by Chemistry.

This is issue #001. If someone forwarded this to you, subscribe free at builtbychemistry.com

→ The real reason tiles fail on site — and who's actually responsible

→ Construction chemicals: the market number nobody's talking about

→ One product shift you need to know about

Your tiles aren't the problem. Your adhesive probably isn't either.

Every week, somewhere on a construction site, tiles start popping. Corners lift. Floors sound hollow. Walls debond six months after handover.

The contractor blames the tile. The tile supplier blames the adhesive. The adhesive brand blames the applicator. And the client — the one who paid — is left with a failed installation and a very expensive problem.

Here's what's actually happening.

Technical investigations consistently point to the same conclusion: most tile failures happen due to incorrect installation — not because of the tiles or the adhesives themselves. That's not a marketing claim from a manufacturer. That's what the failure reports say, every time.

The real culprits are predictable and preventable:

Substrate preparation skipped. Dust, loose particles, paint residue and moisture on the wall or floor create a weak layer between adhesive and surface. The adhesive bonds to the contamination — not the substrate. It looks fine for months. Then it doesn't.

Wrong product for the application. A standard C1 adhesive in a wet zone bathroom is a ticking clock. A flexible S1 adhesive on a rigid substrate with no movement joints will produce cracked grout within a year. The specification exists for a reason. Ignoring it is expensive.

Mixing shortcuts on site. Adding water after mixing to extend open time is one of the most destructive habits in the industry. It weakens the polymer matrix, reduces adhesion strength and compromises moisture resistance — all at once, invisibly.

The real question for buyers and specifiers: when a product fails on site, how do you know whether it's the product, the application, or the specification? Most of the time, nobody audits this properly. The product gets replaced because it's the easiest thing to change.

This newsletter exists partly to close that gap.

The numbers behind the sector

The global tile adhesive market was valued at $3.6 billion in 2024 and is growing at 7.6% annually through 2030 (Grand View Research, 2024). Cementitious adhesives — the C1/C2 products most of us work with daily — dominate that market by volume and are the fastest-growing segment.

The broader construction chemicals sector — admixtures, waterproofing, repair, flooring — is expanding at 5–7% annually, with Asia-Pacific holding over 50% of global market share.

For distributors and buyers: the market is growing fast, but so is the sophistication of what gets specified. Generic products are being squeezed out. Performance documentation — test reports, classification certificates, application guides — matters more than it did three years ago. Buyers are getting smarter. Are your suppliers keeping up?

Low-VOC, Green Solutions and solvent-free formulations are no longer a European regulatory story. Indoor air quality norms are tightening across Asia. Green building certification requirements are expanding into markets that didn't have them five years ago.

Manufacturers already reformulating now will have a significant advantage in 18–24 months. Those waiting for regulation to force the change will be reformulating under pressure — which is always more expensive and always slower.

I'm Guillermo — chemist, MBA, Head of R&D in the construction chemicals industry. I've spent years on both sides: formulating products and watching them succeed or fail in real conditions.

Built by Chemistry is what I wished existed when I started. No press releases dressed up as news. No generic market reports. Direct, clear intelligence about what's actually happening in construction chemicals — globally, with a sharp focus on emerging markets where the real growth is.

Every Thursday. Free. Always will be.

If this was useful, forward it to one person in your network who works in construction, procurement or materials specification. That's how we grow.

— Guillermo Built by Chemistry