open, so that the unbordered, but otherwise complete sandwich is wholly vented. PEKATEX® Grid Core sheets can be adapted to three-dimensional shapes. The split brushlike ends of the PEKATEX® Grid Core root themselves into the adhesive layers towards the opposite covering sheets, connecting them in the form of numerous rugged I-stands to withstand tension, compression and shear load.
PEKATEX® Grid Cores for incorporation and ready for manufacture will be supplied in sheets about 30 to 50 cm wide and 64 resp. 67 cm long in 2 mm height steps from 8 mm upwards. Apart from even also wedge-shaped PEKATEX® Grid Cores linearly rising from 8 mm upwards can be made to order. Further, should customers so wish PEKATEX® Grid Cores can be supplied filled with mineral wool.
For bordering and joining of sandwich panels with PEKATEX® Grid Cores a number of tongue-groove systems and PEKATEX® Skeleton Profiles are available.
Subject to given requirements all known covering sheets can be joined onto PEKATEX® Grid Cores. Apart from the adaptation to required loads thanks to PEKATEX® Grid Cores such panels can be designed also to protect against noise and fire, to provide thermal insulation and against weight increase by avoiding infiltration of condensation. PEKATEX® Grid Cores are free from corrosion.
PEKATEX® Grid Cores can be supplied in various frames from 124 x 64 mm (18,5 kg/m³) down to 30 x 64 mm (35 kg/m³). The latter not even the lightest available and eight millimetres high weighs no more than 28 grams per square metre – 28 grams that will support in excess of 80,000 kg. The vertical PEKATEX® Grid Core walls made from unsaturated polyester and high performance glass grid fabric, are twin layered and like a net some 40 percent
PEKATEX® Grid Core Type Range and Configurations
Type
Range
Frame
width
a
mm
approx. Weight per m²
gram per 1 mm Core height
Grid Core
Configuration GK
mineral wool filling Configuration GKF
30
30
35.0
45.0
40
44
27.3
45.0
60
64
22.7
45.0
80
84
20.2
45.0
100
104
19.2
45.0
120
124
18.5
45.0
Configurations exemplary for Type Range 30
PEKATEX®
Grid Core
Type Range 30
Frame
a = 30 mm
b = 64 mm
plan view
approx. weight per m²,
gram per 1 mm Core height
Cross section
Core height h
Grid core
mineral wool
filling
GK 30 / .....
8, 10, 12, ...
up to > 200 mm
35
—
GKF 30 / .....
8, 10, 12, ...
up to > 200 mm
35
45
GK 30 C
min. 8 mm;
α upon enquiry
upon enquiry
—
GK 30 C
min. 8 mm;
α upon enquiry
upon enquiry
GK 30 CD
min. 8 mm;
α and β upon enquiry
upon enquiry
—
GK 30 CD
min. 8 mm;
α and β upon enquiry
upon enquiry
please insert core height h in mm max. core height and other dimensions upon enquiry
