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What Is the Water Absorption And Swelling Rate of SPC Vinyl Flooring?

SPC (Stone Plastic Composite) flooring is a new type of eco-friendly flooring made primarily from natural stone powder and polyvinyl chloride (PVC) resin.

SPC Flooring and Wall Panel in Bathroom: Color HR944


Its key features are a strong, durable rigid core and 100% waterproof performance. This quality allows it to remain stable even in humid conditions, and the critical metric for measuring this stability is its “Swelling and Water Absorption”

Swelling and Water Absorption Rate of SPC Flooring?

Swelling and water absorption rate refers to the percentage that a material’s dimension increases after being submerged in water for a specific period. The lower this value, the less likely the flooring is to expand and warp after absorbing moisture, indicating better dimensional stability.

HRFLOOR insists on using 100% virgin materials, committed to producing high-quality products at the best price. We collaborate with the testing agency SGS to comprehensively evaluate product performance (click to see all test reports), including its water absorption rate:

Test report issued by SGS (Download Report)

Testing Agency: SGS
Test Standard: EN 15534-1:2014+A1:2017 Clause 8.3.1 & EN 317:1993
Test Method: Submerged in constant temperature water at 20°C for 48 hours (2 days)
Conclusion: ≤0.02%

Advantages of a Low Water Absorption Rate

This near-zero water absorption rate gives SPC flooring significant advantages. It makes the flooring completely waterproof, allowing it to be installed with peace of mind in any damp or splash-prone environment, such as kitchens, bathrooms, and basements, without concerns about moisture damage, warping, or mold.

Comparison of Flooring Waterproof Performance

To understand the advantages of SPC flooring more intuitively, we can compare it with mainstream laminate and solid wood flooring available on the market:

Flooring TypeWaterproof PerformanceThickness Swell RateReference Price
SPC FlooringCompletely waterproofExtremely low, close to 0Medium
Laminate FlooringSurface water-resistant, not fully waterproofStandard HDF: ≤15%; Black Waterproof type: 3-10%Affordable
Engineered FlooringNot waterproofProne to swelling and warping with water exposureRelatively high

With its ultra-low water absorption, SPC flooring stands out from the crowd of flooring materials, offering consumers an ideal choice that combines aesthetic appeal, durability, and exceptional waterproof performance.