Quality Control Program

STRINGENT QUALITY CONTROL PROGRAM

QUALITY CONTROL OF RAW MATERIALS

GeoTrust’s quality control system starts with raw materials: we obtain and review the raw material manufacturer quality certifications. Then, each batch of raw materials arriving at our production facility is sampled for specification testing. Only raw materials meeting the vendor’s stated specifications and our internal guidelines will be accepted and released for production. Both the vendor quality certification and our testing results are retained for product origin tractability.

QUALITY CONTROL OF RAW MATERIALS

On the production line, a sensor monitors the production for any anomalies or visual defects. If a defect is noted on the production line, production is stopped, the issue is investigated and adjusted to rectify the defect. The material with observed defect is immediately rejection. 

COMPLETE TESTING FOR FINISHED GOODS

Our finished products undergo the following testing according the testing frequencies listed in our techinical data sheets:

  1. ASTM D5199: Thickness
  2. ASTM D792: Formulated Density
  3. ASTM D6692 Type IV: 
    • Yield strength 
    • Yield elongation
    • Break strength 
    • Break elongation
  4. ASTM D1004: Tear Resistance
  5. ASTM D4833: Puncture Resistance
  6. ASTM D5397: Stress Crack Resistance
  7. ASTM D4218: Carbon Black Content
  8. ASTM D5596: Carbon Black Dispersion
  9. ASTM D3895: Oxidative Induction Time
  10. ASTM D5721: Oven Aging
  11. ASTM D7238: UV  Resistance

Our Commitment to quality means that only products that meet or exceed our technical specifications are released for client delivery. Any product that fails to meet those specifications are distinguished via its QR code identifier and is physically segregated from the regular inventory.

 

STRINGENT QUALITY CONTROL PROGRAM

PRODUCTS TRACEABILITY

Each roll coming off the production line is assigned a unique product identification code &QR code. The identifier is recorded in our in-house product management system which provides information such as: 

  • Product description
  • Order and job specifications
  • Raw material batch used and test results 
  • Finished goods testing results and MQC certificates
  • Roll delivery release status

 

PRODUCTS APPROVAL

All of the testing data are recorded in  an electronic database and compared against the product specifications, to ensure that only geomembranes that fully comply with the product’s specification are released by the quality assurance team for delivery to customers.

RESEARCH AND DEVELOPMENT

GeoTrust believe in building for the future. We always working hand-in-hand with our clients to identify their unfulfilled needs and challenges. Once an objective is set, our in-house development team works to identify raw materials, test new formulations and production processes, until a workable prototype is complete. Then, all new products are tested is complete. Then, all new products are tested extensively in our laboratory and in real job site projects to ensure proper performance when released.