Under-slab Waterproof Membrane

We have established a full-process quality control system for under-slab waterproof membrane, starting with strict sampling inspection of polyethylene raw materials upon incoming delivery to test melt index, tensile strength and other indicators-unqualified raw materials are firmly rejected from production. Online thickness monitoring is implemented during production, with automatic alarms and adjustments triggered when thickness error exceeds ±0.05mm to guarantee uniform thickness across every meter of membrane. 100% visual inspection and sampling performance testing are conducted for finished products before delivery, covering core indicators including tensile strength, tear resistance, water impermeability and water vapor transmission rate; all batches failing inspection are fully reworked. We welcome third-party institutions designated by clients to conduct on-site inspections, with complete quality inspection reports and product certificates delivered alongside all goods to reassure your end clients.

We have established a full-cycle service system covering pre-sales, mid-sales and after-sales stages. Pre-sales professional technical personnel align with project demands to match the most suitable product model and thickness based on floor load and underground water level, providing targeted waterproof scheme recommendations. Mid-sales synchronization of production progress with regular delivery of production photos and inspection photos, full documentation of container loading, and advance preparation of customs clearance documents to guarantee timely and intact goods shipment. Post-sales, we offer a 1-year product warranty; remote technical guidance is available during construction to resolve various on-site construction issues. If product quality issues arise, we promise to respond within 24 hours and deliver a solution within 48 hours, with compensation options including resending goods or discounts on subsequent orders available per actual conditions, with no evasion or delay throughout the process.

Our under-slab waterproof membrane has obtained ISO9001 quality management system certification and ISO14001 environmental management system certification, with product performance complying with national standard GB/T 18173.1. We can provide physical performance and environmental performance testing reports issued by authoritative third-party institutions, and coordinate CE, SGS and other international certifications based on export market demands. The product is listed in the Recommended Product Directory for National Engineering Construction, designated as the preferred brand by multiple large real estate developers and industrial building design institutes. Backed by stable quality and comprehensive service, we have successively obtained multiple honors including National Quality Trustworthy Product and AAA Credit Enterprise of the Building Materials Industry, with continuously rising brand recognition and industry authority.