What Is SPC Flooring Made Of?
A procurement-focused guide to the mineral-filled PVC core, processing additives and document checks B2B buyers should use before approving an SPC flooring construction.
SPC flooring uses a rigid, mineral-filled PVC composite. A reference SPC flooring MSDS reviewed for this guide lists a “calcium compound” and polyvinyl chloride as the two largest ingredient groups, together with smaller amounts of processing and stabilising additives. The MSDS does not identify the exact calcium salt, so this term should not be rewritten as “calcium carbonate” without separate formulation evidence. Because the document reports ingredient ranges rather than a fixed production formula, buyers should not convert it into a universal calcium-to-PVC ratio or treat it as proof of dimensional, emission or fire performance.
What the reference SPC MSDS reports
The HY0025 material safety data sheet, revised 3 October 2022, identifies the product as SPC flooring and reports the following weight-percentage ranges. These figures apply to the product described by that document; they do not automatically apply to every SPC construction, thickness, backing or supplier.
| Reported ingredient | Content by weight | Procurement interpretation |
|---|---|---|
| Calcium compound | 62–72% | The MSDS uses this general term and does not specify whether the ingredient is calcium carbonate or another calcium-containing material. |
| Polyvinyl chloride | 20–30% | Primary polymer component reported in the reference MSDS. |
| Chlorinated polyethylene | 1–2% | One of the minor formulation components listed. |
| PE wax | 0.2–5% | A processing additive listed as a range. |
| Acrylic ester | 1–2% | A minor formulation component listed in the document. |
| Calcium-zinc stabiliser | 1–2% | A stabiliser system reported in the reference MSDS. |
| Carbon black | 0.1–1% | A minor component; applicability may depend on the documented product. |
The minimum and maximum values are disclosure ranges, not a single recipe. Do not add selected endpoints to reconstruct a batch formula, and do not describe the material as only calcium carbonate and PVC when the document lists additional ingredients.
Why a fixed “3:1 ratio” is not enough for specification
A simplified mineral-to-PVC ratio can help explain the general idea of an SPC core, but it does not identify the complete formulation or prove finished-floor performance. The reference MSDS itself reports ranges and multiple additives. It also describes the product as a mixture rather than a single chemical substance.
Composition is product-specific
Ingredient ranges can vary with the documented formulation. The selected SKU, total thickness, wear layer, backing and production specification should be matched to the current document set.
Performance needs separate evidence
Density, dimensional stability, indentation, fire behaviour, emissions, acoustic performance and underfloor-heating limits require applicable test reports or technical data for the selected construction.
What an MSDS can and cannot tell a buyer
The document can support
- The product name and document identifier.
- Reported ingredient categories and weight ranges.
- Basic physical information, including the source wording “Spec Grav./Density: APPROX 2.00”, with no unit or test method stated.
- Handling, fire and disposal information stated in that document.
The document does not establish
- A universal recipe for all Ecoflors SPC flooring.
- Dimensional stability, use class or click-joint performance.
- VOC, formaldehyde, fire-classification or acoustic results.
- Suitability for a specific market, project or underfloor-heating system.
The reference MSDS states that routes of exposure are “unlikely”, but it also states that no toxicological or ecological data are available for the product and includes a limitation of responsibility. It should therefore not be paraphrased as “non-toxic”, “hazard-free” or a regulatory approval.
How B2B buyers should verify an SPC construction
Use the MSDS as one document in a specification package. Before quotation, sampling or approval, ask the supplier to match every document to the construction being offered.
- Confirm product type, total thickness, core thickness and wear layer.
- Confirm backing type and thickness, click system, plank dimensions and intended installation method.
- Request the current material or safety document for the selected product.
- Request separate reports for any required dimensional, emissions, fire, acoustic or mechanical claim.
- Check the tested item, standard, result, date, scope and target market on each report.
- Resolve any mismatch before the specification or quotation is treated as final.
Composition and finished-floor performance are different questions
Mineral and polymer content influence how an SPC core is processed, but finished-floor behaviour also depends on the complete formulation, extrusion control, conditioning, profiling, click geometry, layer construction and installation conditions. A composition sheet should not be used as a substitute for product-specific performance testing.
For construction options and the documents that may be available for a selected programme, review the Ecoflors SPC flooring range. For manufacturing-process context, see the guide to SPC annealing and joint stability.
Frequently asked questions
Is SPC flooring exactly 75% calcium carbonate and 25% PVC?
Not as a universal rule. The reference HY0025 MSDS reports the general term “calcium compound” at 62–72% and PVC at 20–30%, plus several additional ingredients. It does not identify that calcium compound specifically as calcium carbonate. The correct composition statement must follow the current formulation evidence for the selected product.
Does the MSDS prove SPC flooring is non-toxic?
No. The document provides material and safety information, but it states that no toxicological or ecological data are available for the product. Emissions or chemical-compliance claims require the applicable report and scope.
Does “Spec Grav./Density: APPROX 2.00” prove dimensional stability?
No. That is the exact combined label used by the reference MSDS, which supplies neither a unit nor a test method. Specific gravity is dimensionless, while density requires a unit. The value must not be restated as 2.00 g/cm³ without separate evidence. Dimensional stability is a different characteristic and requires a test report that identifies the tested construction and method.
Which details should I send for a document check?
Send the required construction, total and core thickness, wear layer, backing, dimensions, installation method, quantity, destination market and required standards. Ecoflors can then check which product programme and documents match that request.
Request a product and documentation check
Send your target construction, thickness, wear layer, backing, dimensions, quantity, destination and required standards. Ecoflors will check the matching programme and available documentation before quotation.