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3mm EVA Underlayment with Gold Film - China Suppliers & Factory for Moisture Protection and Sound Insulation
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Beyond Barrier: The Proactive Approach to Moisture Management
Active Moisture Intervention Technology
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
Q
What is the gold film EVA underlayment and what makes it different from standard EVA underlayment?
The gold film EVA underlayment (Model EVA 30-G) features a metallized surface coating that reflects ground-level cold temperatures. Unlike standard EVA underlayment, this coating actively reduces the temperature differential between the top and bottom surfaces, helping to prevent condensation from forming beneath the floor — a problem that traditional barrier underlays cannot address.
Q
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 versatility makes it a practical choice for a wide range of residential and commercial flooring installations.
Q
What are the sound insulation ratings of this EVA underlayment?
The EVA 30-G underlayment achieves an IIC (Impact Insulation Class) rating of 73 dB and an STC (Sound Transmission Class) rating of 72 dB, providing excellent impact noise reduction and airborne sound insulation for multi-level buildings and high-traffic areas.
Q
How does the gold film coating help with moisture and condensation control?
The metallized gold film on the surface acts as a thermal reflective layer that bounces cold temperatures back toward the ground rather than allowing them to transfer upward. This minimizes the temperature gap between the underlay surfaces, which is the root cause of condensation. As a result, moisture management shifts from passive blocking to active prevention.
Q
What are the available roll sizes and how much can be loaded per container?
The EVA 30-G underlayment is available in 100 sq.ft and 200 sq.ft roll sizes. 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 highly efficient for bulk orders and large-scale projects.
Q
What packaging options are available for this underlayment?
The 3mm gold film EVA underlayment can be shipped in three packaging formats: nude (unpackaged roll), pallet, or carton. This flexibility allows buyers to choose the most suitable option based on their storage, transportation, and project requirements.