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At TTPLYWOOD, every plywood panel goes through a 19-step manufacturing process across 3 stages — with QC checkpoints at Steps 06, 12, and 18, independent inspection by Vinacontrol & Kofpi, and FSC-C213082 certification (Soil Association, valid through March 2030). No outsourced production. No skipped inspections.
Our two factories in Phu Tho (Zone 16, Vo Mieu & Khu Khuan 2, Thanh Son) operate in parallel under the same standardized process — no outsourcing, no shortened inspection steps.
From raw core veneer to hot-pressed, repaired, and sanded core panels — ready for face lamination.
Steps 01 – 10Face/back lamination, final hot pressing, trimming, and finish sanding.
Steps 11 – 17Comprehensive finished-panel inspection, Vinacontrol/Kofpi verification, and export packaging.
Steps 18 – 19Build a compliant core structure — the foundation that determines bonding strength and long-term panel durability.
Core veneer is graded manually and semi-automatically by thickness, surface quality, and moisture content. Only veneer that meets internal standards enters the production line. Rejecting defects at this stage significantly reduces waste in later operations.
Veneer edges are sanded to ensure tight joints during lay-up — a factor that directly affects bonding quality and core appearance. Poor edge fit creates gaps in the finished panel and weakens local structure.
Adhesive is evenly applied to both sides of the core veneer using a roller glue spreader system. Depending on the product line and destination market, TTPLYWOOD uses one of three adhesive systems:
Veneer layers are assembled with alternating cross grain to improve two-way stability, balance internal stress, and resist warping. The number of plies is always odd to maintain structural symmetry around the center core layer.
The core lay-up goes through cold pressing for initial adhesive setting before hot pressing — stabilizing the structure and preventing layer displacement during heat treatment. This is an essential preparation step for effective hot pressing.
This is the first QC point in the 3-layer control system. Core defects (knots, small cracks, open joints) are patched and repaired before hot pressing. Detecting and correcting issues here significantly reduces post-press rejects — defects are not allowed to accumulate into the finished panel.
Core panels are trimmed to the required size before hot pressing, either in standard dimensions or according to the order specification.
This is the stage that determines bonding strength and moisture resistance. Temperature and pressure are controlled according to product-specific pressing formulas. Vinacontrol test results on the FFP line confirmed a sliding tensile strength of 1.46 MPa — exceeding the Pass threshold under TCVN 8328-1:2010 (ISO 12466-1:2007).
The pressed core surface is repaired and leveled for the first time to fill low spots and flatten the panel. The first sanding pass creates the base texture needed for proper adhesive anchoring.
The second sanding pass ensures even face bonding and helps prevent bubbles after surface pressing. Two treatment passes are mandatory in TTPLYWOOD’s process to secure core quality before face lamination.
Face/back lamination, final hot pressing, and surface finishing — producing panels that meet market requirements.
Adhesive is applied across the entire prepared core surface for face lamination. Glue spread rate and uniformity are critical: insufficient glue causes face bonding failure after pressing, while excess glue can create glue bleed and surface staining.
This is the second QC point. After glue application, the core surface is visually checked 100% to identify dry glue spots, bubbles, or contamination before face lay-up. No defective lot is allowed to proceed to final surface hot pressing — this gate prevents structural defects from carrying through to the finished product.
Face and back veneers are laid onto the core with the correct grain orientation to maintain structural symmetry. Face material depends on the product line and destination market:
The assembled panel is hot pressed one final time to bond the full structure. For Film Faced plywood, pressure and temperature are adjusted separately to ensure firm film adhesion without blistering — a technical requirement different from natural wood-faced panels.
After pressing, panels are cut to exact order size under tight tolerance control. Vinacontrol confirmed this line achieved a thickness of 11.5 mm (±0.3 mm).
Finished panel surfaces are checked and repaired for any minor defects remaining after pressing — especially important for orders requiring Grade A or B faces. Panels that cannot be repaired are downgraded or removed from the lot.
The panel surface is finish-sanded to meet the smoothness requirements of each product line and export market. This is the final surface preparation step before finished goods inspection.
Panels leave the factory only after meeting all required standards — supported by internal inspection and third-party verification when requested.
This is the final and most comprehensive QC point. Every lot is checked against internal standards for flatness, dimensions, moisture content ≤14%, surface quality, and ply count. Export lots are independently inspected by Vinacontrol and/or Kofpi when requested by the customer. Non-conforming lots are not released for shipment.
Panels are bundled to export standard using steel or plastic strapping, wooden pallet runners, and PE moisture-protection wrapping. Labels include full technical information to ensure traceability at the destination port.
Not just internal claims — TTPLYWOOD’s performance is verified by Vinacontrol, Kofpi, and the Soil Association with real, traceable data.
Certification issued by Soil Association Certification — confirming that the entire wood supply chain from forest to finished product meets FSC requirements. Valid through March 2030.
Inspected by Vinacontrol (Vietnam’s state inspection organization). Bonding strength of 1.46 MPa exceeds the Pass threshold of TCVN 8328-1:2010. Formaldehyde E2 — acceptable for export.
Independently tested by the Korea Forestry Promotion Institute on 5-ply Packing Plywood. Formaldehyde at 0.3 mg/L — compliant for Korean export under the Sustainable Use of Timbers Act.
TTPLYWOOD provides complete Vinacontrol reports, Kofpi certification, FSC certificate, and technical documents according to each order and import market requirement.
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