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3mm EVA Underlayment with Gold Film - China Supplier Factory for Moisture Protection and Sound Insulation
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Material: Polyethylene
Package: Nude / Pallet / Carton
Application: Laminate, Hardwood, Bamboo and Vinyl Flooring
Data:
| MODEL | EVA 30-G | WATER ABSORPTION | <0.1% |
| THICKNESS | 3mm | IIC RATING | 73db |
| DENSITY | 100kg/m³ | STC RATING | 72db |
| SIZE | 100sq.ft / 200sq.ft | LOAD QTY. (20GP) | 8000sqm / 86000sq.ft |
| THERMAL INSULATION | 0.04w/mk | LOAD QTY. (40HC) | 18000sqm / 195000sq.ft |
Beyond Barrier: The Proactive Approach to Moisture Management
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When ground moisture quietly appears in the form of condensation, traditional barrier-type underlays are often powerless—they can block liquid water but cannot resolve the water droplets formed on the back of the underlay due to temperature differences. These hidden moisture deposits become potential threats to floor health.
The development of the gold film EVA underlay is precisely to address this core challenge. Its surface metallized coating acts like a precision thermal guide mirror, whose core function is to reflect low temperatures from the ground, effectively reducing the temperature difference between the upper and lower surfaces of the underlay, thereby fundamentally inhibiting the conditions for condensation formation and elevating moisture control from "passive isolation" to "active intervention."
Frequently Asked Questions
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What is the gold film on the EVA underlayment and what does it do?
The gold film is a metallized reflective coating applied to the surface of the EVA underlayment. It acts as a thermal mirror, reflecting cold temperatures from the ground and reducing the temperature difference between the top and bottom surfaces of the underlay. This actively inhibits condensation formation and provides superior moisture management compared to traditional barrier-type underlays.
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What types of flooring is this 3mm EVA underlayment compatible with?
This underlayment is suitable for use with laminate, hardwood, bamboo, and vinyl flooring. Its 3mm thickness and high-density polyethylene construction make it a versatile choice for a wide range of residential and commercial flooring applications.
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What are the IIC and STC ratings of this product, and why do they matter?
The EVA 30-G model achieves an IIC (Impact Insulation Class) rating of 73db and an STC (Sound Transmission Class) rating of 72db. These high ratings indicate excellent sound reduction performance — the IIC measures impact noise (such as footsteps) while STC measures airborne sound transmission, making this underlayment ideal for noise-sensitive environments.
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How does the gold film EVA underlayment differ from standard moisture barrier underlays?
Traditional moisture barriers are passive — they can block liquid water but are ineffective against condensation that forms on the back of the underlay due to temperature differences. The gold film EVA underlayment takes a proactive approach by reflecting ground cold, reducing thermal differentials, and thereby preventing condensation from forming in the first place. This elevates moisture protection from passive isolation to active intervention.
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What are the available sizes and how many can fit in a shipping container?
The underlayment is available in roll sizes of 100 sq.ft and 200 sq.ft. For shipping, a 20GP container can hold approximately 8,000 sqm (86,000 sq.ft), while a 40HC container can accommodate up to 18,000 sqm (195,000 sq.ft), making it efficient for large-volume orders.
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What packaging options are available for this EVA underlayment?
The 3mm EVA underlayment with gold film is available in three packaging options: Nude (no outer packaging), Pallet, and Carton. This flexibility allows buyers to choose the most suitable packaging based on their storage, handling, and shipping requirements.