Angkop Corp / Material System Reference
Flexible Natural
Stone™
A modified inorganic powder composite building material, also identified as MCM Flexi Clay or Unfired Clay Material. The system combines kaolin, quartz, and polymer binders in a thin, flexible architectural surface panel.
01 / Material definition
A mineral-led panel system for considered specification.
Flexible Natural Stone™ is a modified inorganic powder composite building decorative material. Its primary mineral constituents are kaolin and quartz, stabilized with polymer binders and formed into thin panels for architectural surfaces.
It is not a quarried stone slab, laminate, or printed surface. The material is supplied as a flaky solid and should be evaluated as a complete system with the selected substrate, adhesive, installation condition, and project requirements.
Classification
MCM Flexi ClayModified inorganic powder composite building decorative material.Physical form
Thin flexible panelFlaky solid, odourless, and insoluble in water as described in supplier documentation.Bend direction
LengthwiseThe panel bends along its length, not across its width. Confirm orientation during layout.02 / Composition
Supplier-documented composition.
The following ranges are taken from the supplied material safety documentation. They describe composition, not a substitute for project-specific testing, code review, or installation instructions.
| Ingredient | Role | Reported proportion by weight |
|---|---|---|
| Kaolin | Primary inorganic mineral base | 50–56% |
| Quartz (SiO₂) | Secondary inorganic mineral filler | 42–47.5% |
| Polyacrylic acid | Polymer binder | 1.5–2.5% |
| Polyvinyl alcohol | Polymer stabilizer | 0.15% |
| 3-Trimethoxysilylpropyl methacrylate | Silane coupling agent | 0.15% |
Handling note: Standard installation PPE and dust control apply. Refer to the current supplier documentation for the complete safety and handling requirements.
03 / Fire performance
Documented performance, correctly scoped.
Classification
ASTM E84 Class A*Surface-burning performance where identified by the applicable product test report.Material character
Inorganic mineral-led compositeNon-flammable is a supplier-document description of the material, not approval of every assembly.Project review
Assembly-specificConfirm the specified panel, substrate, adhesive, clearances, and local requirements.*Important: ASTM E84 Class A is a surface-burning classification. It is not a blanket fire-resistance rating, fireproofing claim, or approval of a complete wall, ceiling, fireplace, or exterior assembly. Use the applicable product test report and authority-having-jurisdiction requirements for the project.
04 / System logic
Four decisions. One clear sequence.
01 / Substrate
Start with a firm, stable base.
The substrate must be suitable for the assembly, clean, dry, stable, and compliant with applicable project requirements.
02 / Adhesive
Select a compatible system.
Choose the adhesive for the panel, substrate, and installation condition. Follow the current adhesive manufacturer instructions.
03 / Panel
Plan the material direction.
Confirm panel orientation, cuts, seams, edges, movement provisions, and the intended surface presentation before bonding.
04 / Cure
Allow the system to set.
Respect working time and cure requirements before loading, cleaning, or placing the finished surface into service.
Material System and Installation Guide stay separate.
This page defines the material and the decision framework. For preparation, cutting, bonding, site conditions, and installer checks, use the Installation Guide.
05 / Specification context
Designed for architectural review.
Flexible Natural Stone™ can be reviewed for residential, commercial, hospitality, multifamily, interior, exterior, curved, and feature-surface applications where the complete assembly is appropriate.
Application suitability depends on substrate, moisture, exposure, heat, movement, support, adhesive compatibility, local requirements, and the project’s authority having jurisdiction. Confirm the actual condition before specification.
Review
Material and assemblyEvaluate the panel together with the substrate, adhesive, condition, and intended use.Documentation
Project supportTechnical data, safety documentation, test reports, and samples are available by request.Responsibility
Independent verificationSpecifiers remain responsible for suitability, code compliance, and project-specific approval.