Views: 0 Author: Site Editor Publish Time: 2025-09-24 Origin: Site
The silicone sheet is a vital component in an EVA glass laminating machine, responsible for providing uniform pressure, sealing, and heat resistance during the lamination process. Since laminated safety glass requires flawless bonding without bubbles or defects, the quality of the silicone sheet directly influences production efficiency and final product performance. Therefore, evaluating the sheet’s quality is an essential step before application.
A high-quality silicone sheet must withstand continuous working temperatures of 180–250°C without hardening, cracking, or deforming. Poor-grade silicone tends to lose elasticity after several heating cycles, leading to premature failure and inconsistent lamination results.
Elastic recovery is crucial in ensuring that the silicone sheet conforms to the glass surface and EVA film evenly. A good sheet should be soft yet resilient, maintaining flexibility under pressure. Testing by stretching and pressing the material can reveal whether it will sustain long-term use in repetitive lamination cycles.
One of the common problems in EVA lamination is EVA sticking to the silicone sheet. High-quality sheets are manufactured with advanced formulations or surface treatments that provide anti-stick properties, making cleaning easier and extending service life.
During operation, the sheet is repeatedly stretched and subjected to vacuum pressure. A quality silicone sheet should have high tear resistance, preventing cracks from spreading when exposed to sharp edges of glass or continuous mechanical stress. Reinforced silicone sheets with fabric layers inside are especially durable.
Since laminating machines require precise fitting, the silicone sheet must be manufactured with accurate thickness and size tolerances. Any deviation can cause air leakage, uneven pressure, or sealing failure during lamination.
To evaluate the quality of a silicone sheet for EVA glass laminating machines, manufacturers should consider heat resistance, elasticity, EVA adhesion resistance, tear strength, and dimensional precision. A high-quality sheet not only ensures defect-free laminated glass but also reduces maintenance costs and extends production efficiency over many cycles.
