Product Details

waterproof plywood for concrete formwork

1.Technical Data

data	specification
size	1220x2440mm
thickness	different thickness available, from 12mm to 21mm
core	poplar, birch, hardwood, combined or requested by client
glue	mr/melamine/wbp phenolic glue
film	black/brown/red chinese film or dynea film
grade	A/A grade or requested
packing	inner with plastic bag, outerside with 3mm plywood/carton board, then fasten with 3x6 iron sheet, then packed with pallets.

application

concrete formwork for construction

2. specification

thickness(mm)	layers	standard size		large size
		min. (mm)	max.(mm)	min.(mm)	max.(mm)
9	7	8.5	9.5	8.2	9.5
12	8	11.5	12.5	11.2	12.5
15	9-10	14.5	15.5	14.2	15.5
18	11	17.5	18.5	17.2	18.5
21	13	20.2	21.5	20.2	21.5

3. moisture (8-14%) & density:

products	weight (kgs/m3)
birch	about 700kgs/m3
combined	500-700kgs/m3
poplar	about 510kgs/m3

4. conserve and maintain:

storage:

always clean and repair the formwork panels before storage, the formwork should then be stacked off the ground on level supports and under cover. framed formwork panels should be stacked alternately face and back to back to avoid face damage by bolts etc. if panels are wet, do not allow them to dry too rapidly.

sealing of edges:

phenolic film faced plywood edges are fully sealed by the factory and it is the most important that all edges remain sealed. to obtain full value from a phenolic film faced plywood sheet any recut edges should sealed as soon as possible with water proof paint sealing of holes.

any hole made in film faced formwork panels should also be sealed to prevent water entering. if water does enter it may cause swelling around the holes.

cleaning and repair:

to obtain full life, cleaning should be carried out immediately after each use. phenolic film faced plywood may be wiped with release agent or cleaned with water and stiffbrush. it may be necessary to use a hard wood scraper but care should be taken not to damage the plywood face. do no use a wire brush or sharp metal scraper to dislodge hardened concrete.