SPC, LVT and WPC Flooring: What the Vinyl Labels Mean

SPC, LVT, LVP and WPC are not four mutually exclusive flooring categories. A quotation may use one term for the wider product family, another for its format and another for its core. Before comparing two offers, identify whether each product is flexible or rigid, how it is installed and what the stated thickness includes.

For a Kermit order, the technical sheet and selected product reference define the specification. This guide explains the wider terminology so buyers can read other proposals alongside it; it does not present every vinyl category as a Kermit product range.

What does each label tell you?

Label	How to read it in a flooring proposal
Vinyl flooring	A broad description. Request the particular construction and installation method.
LVT / LVP	Luxury vinyl tile / luxury vinyl plank terminology. These labels alone do not settle the core construction.
Flexible LVT / LVP	A flexible product family, with installation methods that vary by product.
SPC	A rigid-core designation. Confirm the manufacturer's description, full layer structure and named product.
WPC	A core-related label whose expansion and use vary between sources. Confirm the actual composition and construction.
Rigid core	A construction family; it does not specify one universal thickness, backing or performance level.

Industry classifications illustrate why the labels overlap. RFCI includes rigid-core products within the wider LVT family and uses SPC for Solid Polymer Core and WPC for Expanded Polymer Core. MMFA's category system separates LVT click from rigid EPC/SPC within its polymer category. The classifications have different boundaries, so a bare “SPC versus LVT” heading needs explanation.

WPC is particularly worth clarifying: MMFA also lists Wood Plastic Composite among possible core materials. Do not infer a particular wood content, density or expanded structure from the acronym alone. Ask the supplier to identify the product's actual construction.

Kermit uses SPC in the stone-polymer composite sense. For the basic material explanation, see what SPC flooring is; use this article to interpret competing product labels.

Flexible versus rigid: ask about the installation method

The useful comparison is often between two specific constructions, rather than between the words vinyl and SPC. According to RFCI's flexible LVT/LVP overview, products in that family can use glue-down, floating click or loose-lay methods. This does not mean any one flexible product can be installed by all three methods.

For a glue-down proposal, ask for the specified adhesive, base-preparation requirements and installation conditions. For a floating proposal, ask for the selected locking system, approved underlay, movement details and transitions. For any other method, request its own instructions. Put that installation method on the quotation so the installer is pricing the same work the buyer expects.

Rigidity is not permission to ignore the base. Kermit's manual still requires a firm, clean, dry and suitably flat substrate. If a supplier says that a product can cover an existing floor, ask which existing material and condition are permitted, and who will assess them before work begins.

Read thickness as a set of layers

“6 mm vinyl” is an incomplete specification. Total thickness does not reveal how much is core, wear layer or attached backing. A separate underlay also affects the finished assembly but may not be included in the plank thickness advertised in a quotation.

Kermit's published 6 mm no-IXPE technical sheet, in Romanian, provides a concrete example:

• the stated overall product thickness is 6.00 mm;
• the wear layer is 0.50 mm;
• the configuration has no attached IXPE;
• the described installation is floating, using a click system;
• acoustic performance is undeclared on that sheet.

Those fields describe the documented configuration. They should not be transferred to another collection or order just because it also says SPC. Match the technical sheet to the quotation and sample, and use the thickness and wear-layer guide when comparing layer information.

Compare performance without assigning an automatic winner

A material label cannot answer every room requirement. Make the comparison specific to the use:

• Water and cleaning: check the permitted exposure and care method for each product. Flexible LVT is not automatically unsuitable for spills, and rigid SPC does not automatically approve a bathroom. Kermit's water-resistance guide states its actual limits.
• Wear and loads: identify the declared result relevant to the expected traffic, furniture or rolling loads. Keep the test or classification beside the result; a thicker core is not a universal durability score.
• Sound and feel: judge personal feel from representative samples, and request acoustic evidence for the specified assembly. Core names do not supply a measured sound value. The underlay guide explains the backing and assembly questions.
• Heating and exposure: obtain the floor manufacturer's conditions for the selected system. Kermit's maximum finished floor-surface temperature is 27°C under its installation guidance; a different floor needs its own approval.

If laminate is another candidate, use the separate SPC and laminate comparison. Keeping that material comparison distinct makes the vinyl terminology easier to follow.

Turn two quotations into comparable specifications

Start with a short product record for each offer: manufacturer, product code, construction, total thickness, wear layer, attached backing and installation method. Add the intended room and the document revision supporting its use. Leave missing information visible until the supplier resolves it.

Then list the work around the product: existing-floor removal if needed, preparation, moisture control, adhesive or underlay as applicable, profiles, fitting and delivery. Agree the same measured area and quantity allowance for both offers. Price differences become easier to assess once the scope is comparable.

For example, a flexible glued-down offer and Kermit's documented floating no-IXPE configuration need different installation descriptions. A price for panels alone will not tell you the cost of the completed room. Confirm installed costs and any expected service life or repair options for the actual project before using them in the comparison.

Keep the accepted product reference on the sample, quotation and order. You can obtain Kermit's available sheets and installation guidance from Resources, then ask for any remaining order-specific confirmation before purchase.

Vinyl terminology questions

Is SPC a type of LVT?

Some industry classifications, including RFCI's, include rigid SPC within the wider LVT family. Other classification systems separate LVT click and rigid-core subgroups. Confirm the specific construction whenever comparing products.

Is LVT always glued down?

No. Flexible LVT/LVP products can have different installation methods, including glue-down, click or loose lay. Use the method approved for the selected product.

Does WPC always mean the same core material?

No. Sources use the term differently. Ask for the manufacturer's construction description and technical sheet instead of inferring composition or performance from the acronym.

Does a 6 mm SPC label tell me whether underlay is included?

No. Check the breakdown of total thickness and attached backing. Kermit's documented 6 mm no-IXPE configuration has no attached IXPE; other products must be checked individually.