Angkop Corp — Material System Reference
Flexible Natural
Stone™
A modified inorganic powder composite building material — classified as MCM Flexi Clay — composed of kaolin, quartz, and polymer binders bonded into a thin, flexible architectural surface panel. Specified where conventional stone faces weight, substrate, or installation constraints.
System Definition
01
What Flexible Natural Stone™ Is
Flexible Natural Stone™ (Eco-Flexi MCM) is a modified inorganic powder composite building decorative material — also identified as MCM Flexi Clay or Unfired Clay Material. It is manufactured from kaolin and quartz as primary mineral constituents, stabilized with polymer binders, and formed into thin flaky-solid panels that flex, curve, and conform to non-planar architectural substrates.
The material is not a quarried stone slab, laminate, or printed surface. Its stone-like appearance derives from its mineral composition — kaolin and quartz account for over 97% of the material by proportion. The panel is odourless, insoluble in water, non-flammable, and chemically stable under standard building conditions.
Core Material Specifications
Product Classification
Modified inorganic powder composite — MCM Flexi Clay
Physical Form
Flaky solid — odourless, insoluble in water
Flammability
Non-flammable — inorganic material, will not burn or support combustion
Fire Rating
ASTM E84 Class A / EU Class A
Weather Rating
UV-stable — all-weather exterior rated
Stability
Stable under recommended storage and handling conditions
Chemical Composition
02
Verified Ingredient Composition
Material Safety Data Sheet (MSDS)
| Ingredient | Chemical Role | Proportion by Weight |
|---|---|---|
| Kaolin | Primary mineral base — clay mineral, inorganic | 50 – 56% |
| Quartz (SiO₂) | Secondary mineral filler — silica, inorganic | 42 – 47.5% |
| Polyacrylic acid | Polymer binder — adhesion and flexibility agent | 1.5 – 2.5% |
| Polyvinyl alcohol | Polymer stabilizer — film-forming agent | 0.15% |
| 3-Trimethoxysilylpropyl methacrylate | Silane coupling agent — mineral-to-polymer bonding | 0.15% |
Inorganic mineral content (Kaolin + Quartz): Over 97% of the material by composition. This inorganic mineral dominance is the basis for the material’s non-flammable classification and chemical stability.
Hazard classification: This product does not belong to dangerous goods. No hazard classification applies under standard transport and handling regulations. The material is not acutely toxic, not carcinogenic, and not classified as a reproductive or mutagenic hazard. Eye contact may cause irritation — standard PPE applies during installation.
Environmental Position
03
Why Mineral Composite Outperforms Vinyl and Plastic Surface Products
Peel-and-stick vinyl tiles, plastic stone-look panels, and PVC-based wall cladding are widely available at low cost. They are also petroleum-derived, non-recyclable, and contribute to persistent plastic waste at end of life. Flexible Natural Stone™ is a mineral-based material — the difference is not aesthetic. It is compositional.
| Attribute | Vinyl / Plastic Surface Products | Flexible Natural Stone™ |
|---|---|---|
| Base material | Petroleum-derived — PVC, polyethylene, or polystyrene | Mineral-derived — kaolin and quartz (97%+ inorganic) |
| End-of-life disposal | Landfill — non-biodegradable, persistent plastic waste | Closed-loop recyclable — can be ground down and reintegrated into new MCM production |
| Off-gassing / VOCs | PVC and adhesive-backed vinyl products may off-gas plasticizers and VOCs, particularly in enclosed or heated spaces | Odourless — no volatile substances identified in MSDS. Inorganic mineral base. |
| Flammability | Combustible — PVC burns and produces toxic chlorine compounds | Non-flammable — inorganic material, will not burn or support combustion. ASTM E84 Class A. |
| Durability | UV degradation, peeling adhesive, surface cracking over time — typically 3–7 year lifespan | UV-stable, all-weather exterior rated — mineral composition does not degrade under UV exposure |
| Appearance over time | Printed surface — fades, peels, or yellows. No depth or texture variation. | Genuine mineral surface — texture and colour variation inherent to kaolin and quartz composition |
| Recyclability | Not recyclable in standard streams — composite adhesive backing prevents separation | Can be ground down and reintroduced as raw material in new MCM panel production — closed-loop system |
| Hazard classification | PVC production and incineration generates dioxins and persistent organic pollutants | No hazard classification — not classified as dangerous goods under transport or handling regulations |
On recyclability: At end of life, Flexible Natural Stone™ panels can be mechanically ground down. The resulting mineral powder — primarily kaolin and quartz — is re-introducible as raw input material in new MCM composite production. No landfill disposal required.
On specification risk: Vinyl and plastic surface products are increasingly subject to indoor air quality restrictions, green building certification exclusions (LEED, WELL), and municipal plastic waste regulations. Specifying a mineral-based, non-PVC surface eliminates this category of compliance risk from the project record.
Application Zones
04
Specified Project Types
Flexible Natural Stone™ is specified across residential, commercial, hospitality, and multifamily project types. The following outlines typical application zones and relevant installation conditions for each sector.
Residential
- Feature walls — living, dining, bedroom
- Fireplace surrounds (decorative electric)
- Exterior facade — entry, accent zones
- Basement finishing — direct-to-concrete
- Bathroom feature walls — with waterproofing
- Ceiling applications — flexible profile
Commercial
- Lobby and reception walls
- Corridor feature surfaces
- Retail interior accent zones
- Office boardroom and executive interiors
- Exterior cladding — entry and signage zones
- Column wraps — curved profile
Hospitality
- Hotel lobby and corridor walls
- Restaurant and bar feature surfaces
- Spa and wellness interiors
- Elevator cab interiors
- Exterior facade — entry and porte-cochère
- Curved architectural elements
Multifamily
- Common area lobbies and corridors
- Amenity room feature walls
- Exterior building accent zones
- Parkade entry and stairwell surfaces
- Rooftop terrace feature walls
- Suite entry and foyer walls
Substrate & Installation
05
What Flexible Stone Eliminates
Conventional wall finishing requires taping, mudding, sanding, priming, and paint finishes — multiple trades, multiple cure cycles, and significant lead time. Flexible Natural Stone™ eliminates all of it.
The system has two requirements: a substrate that is firm, stable, and NBC-compliant, and an appropriate adhesive. Apply adhesive, bond the stone, allow to cure. That is the complete process.
Eliminated
Taping & Mudding
No joint compound. No drying time between coats.
Eliminated
Sanding
No surface levelling required. No dust between stages.
Eliminated
Primer & Paint
No primer coat. No paint finish. No colour matching.
Eliminated
Multiple Trades
One trade installs substrate and stone. No handoff required.
Substrate compatibility: Flexible Natural Stone™ bonds to drywall, concrete, masonry, cement board, and existing cladding — provided the surface is firm, stable, and NBC-compliant. No mechanical anchoring or structural reinforcement required for standard wall applications.
Panel layout: Staggered or seamless butt-joint installation — determined by the design intent of the project, not by structural requirement. Both methods are valid on any compliant substrate.
For full installation sequencing, substrate preparation, cutting methods, and adhesive selection, refer to the Installation Guide →
Specification Support
06
Documentation Available for Project Teams
The following documents are available upon request for AEC project teams, specification writers, and permit submissions. Contact project@angkop.ca with project name, location, and application type.
| Document | Format | Availability |
|---|---|---|
| Product Technical Data Sheet | Available upon request | |
| ASTM E84 Test Report | Available upon request | |
| Installation Guide | Available upon request | |
| Material Safety Data Sheet (SDS) | Available upon request | |
| Physical Sample Kit (9" × 12" panels) | Physical | Ships across Canada and USA |
| Project Reference Photography | Digital | Available to qualified specifiers |
Specification Support
Request samples or project documentation.
project@angkop.ca · info@angkop.ca · +1 (778) 909-9524
This page is maintained as a technical reference for AEC professionals. Composition data sourced from ISO 9001, ISO 14001, ISO 45001 manufacturer MSDS.
Environmental claims reflect material composition characteristics. Specifiers are responsible for independent verification of material performance, code compliance, and suitability for specific project conditions.