Construction Plywood, Concrete Plywood, 18mm Film Faced Plywood manufacturer / supplier in China, offering 21mm Marine Lminated Shuttering Film Faced Plywood Building Material Board, Good Quality Bintangor Commercial Plywood for Decoration/Furniture, 1220X 2440mm Film Faced Waterproof Building Plywood for Construction and so on.
|Purchase Qty. / Reference FOB Price|
|1 ′40HQ||US $15.9|
|2+ ′40HQ||US $15|
|Payment Terms:||L/C, T/T|
|Formaldehyde Emission Standards:||E1|
|Place of Origins:||China|
1) Bonding strength is low:
Is mainly caused by poor quality plastic. Hot press conditions are not controlled well, such as low pressing temperature, low pressure, and too short pressure time. Those will lead to low bonding strength. Too high veneer moisture content, insufficient amount of glue, poor quality veneer and too long or too short veneer assembly time, will also reduce the bonding strength.
2) Bubbling and local delamination:
The reason lies in too fast pressure relief, lack of pressure time, too high veneer moisture content, blank spots on the board during gluing or inclusions and dirt on the veneer, etc.
3) Plywood warp:
Is due to large internal stress within plywood. The reason is that the moisture content of face and back veneer is inconsistent with each other: different species veneer mismatches unreasoningly; veneer texture distortion; individual hot pressure temperature is not enough; plat piled unevenly; etc.
4) Delamination of edges and corners:
The reason is mainly caused by insufficient pressure that the press plate's edges and corners of hot press machine is worn; slabs in each interval of hot press machine is not aligned in edges and corners; when putting slabs in each interval of hot press machine, too skewed, so uneven pressure happens; when rotary cut, edges of veneer is insufficiently pressed; adhesive tension is weak; corners and edges are lack of glue; glue dries prematurely; temperature of localized place on pressure plate is low; etc.
5) Glue penetration:
The reason is that the lowsolids content of glue, excessive usage amount of glue, deep cracks on the back of the veneer, too high moisture content of veneer, too long veneer assembly time and too high pressure of hot press machine, and so on.
6) Excessive formaldehyde emission:
Is related with quality of glue, gluing process, etc.
Address: Rm. 401, Skywit Building, No. 63, Beijing Road, Qingdao Free Trade Zone, Shandong, China.
Black Film Faced Plywood/WBP Glue Film Faced Plywood/ Shuttering Plywood/Two Times Hot Pressed Plywood
Black film, domestic brown film, imported dynea brown film
Sealed with waterproof paint
Standard exporting package( bottom is pallet, covered with plastic film, around is carton, strengthen by steel tape with 3*6
Minimum order quantity
TT or L/C at sight
Within 15-20days after get prepayment