Engineered
Polypropylene Core
PP
Honeycomb
Plascore PP Honeycomb
Light, Strong, Tough, Cost-Effective
Ref. -00
Ref. -20
Ref. -01 / -10
Plascore PP Honeycomb is a tough, lightweight and
ductile polypropylene material that provides efficient
and optimum mechanical performance in composite
sandwich structures.
PP Honeycomb is an excellent alternative to traditional
core materials such as plywood, balsa and foam used in
the manufacturing of consumer and industrial products.
Available in a wide range of sheet sizes and facings,
PP Honeycomb is engineered for ease of use in many
mainstream manufacturing processes, is readily
available and can be modified to meet specific
requirements for strength and stiffness.
Plascore PP Honeycomb provides properties used
in many composite sandwich structures that require
core shear and compression along with adhesion
performance. The unique cell structure, the use of a high
impact copolymer PP and unique material processing
contribute to its attractive performance levels.
Ref. -30
• Multi-axial structure provides isotropic
performance
• Engineered raw materials for higher
performance
• Uniform and uninterrupted cell structure
throughout entire sheet
• Integral and thermally fused facings for
optimal adhesion
• Non woven surface is compatible with most
Epoxy, Polyester, Vinyl Ester, Urethane and
Methacrylate Resin systems
• Minimizes laminating resin while fully
wetting out
• Continues to absorb energy, even after
ultimate yield
• Recyclable
Value Added Configurations
To Meet Your Requirements
Open Cell
PP Honeycomb Ref. -00
Description
Availability
Uses
PP Honeycomb with Veil
or Veil with Film Ref. -01/-10
Infusion Grade
PP Honeycomb Ref. -20
PP Honeycomb with Reinforced
PP Facings Ref. -30
PP Honeycomb Core:
• Open cell structure
• No facings
PP Honeycomb Core:
• Faced with a lightweight
non-woven polyester (-01)
• Faced with a lightweight
non-woven polyester with an
internal PP film barrier (-10)
PP Honeycomb Core:
• Faced with a composite
surfacing material
• No flow medium incorporated
PP Honeycomb Core:
• Faced with Reinforced-PP
stress skins
• Reinforcement types:
- Chopped - Natural fiber
- Woven - Uni-directional
glass
All densities and sheet sizes
All densities and sheet sizes:
• Options of unscored or
scored to a 1" x 1" or 2" x 2"
grid pattern
• Scored material is limited to
no larger than 96" dimensions
Sheet sizes:
• All densities. Up to 48" x 96"
standard
• Pre-punched pass through
holes available on sheet
sizes up to 24" x 48"
Sheet sizes:
• Up to 72" wide x 144" length
standard
• Facing material may limit
some sizes
• Special widths and lengths
available upon request
• Core material for thermoplastic molding of sandwich
structures
• Air and fluid flow medium
Core material in thermoset
bonding of sandwich structures:
• Open Molding
• Platen Press
• Wet Vacuum Bagging
processes
Core material in closed molding:
• Lite RTM
• Closed Cavity Bag Molding
• Vacuum Infusion
Preconsolidated lightweight
boards to replace plywood or
other thermoset composite
sandwich panels
PP Honeycomb Core Mechanical Properties
CORE
CELL SIZE
(in)
(mm)
DENSITY
TYPICAL
lb/ft3 kg/m3
MINIMUM
lb/ft3 kg/m3
FLATWISE
TENSILE1
STRENGTH
psi
MPa
BARE COMPRESSION2
STRENGTH
TYPICAL
MINIMUM
psi
MPa psi
MPa
MODULUS
TYPICAL
MINIMUM
ksi
MPa
ksi MPa
PLATE SHEAR3
STRENGTH
TYPICAL
MINIMUM
psi MPa
psi
MPa
MODULUS
TYPICAL
MINIMUM
ksi MPa ksi
MPa
PP1-5.0-N1-8 0.315
8
5 80.0 4.75 75.0 130 0.89 275 1.89 255 1.55 11.5 79.2 9.5 65.4 85 0.58 75 0.52 2.2 15.2 1.7 11.7
PP1-4.0-N1-10 0.395
10
4 64.0 3.8 60.0 120 0.83 180 1.24 140 0.96 10.5 72.3 8.5 58.5 60 0.41 55 0.38 2.0 13.8 1.5 10.3
The data provided is based on the testing
of -01 (veil only) version of each core type.
1
Flatwise Tensile
Tested per ASTM C 297
2
Bare Compression
Tested per ASTM C 365
3
Plate Shear
Tested per ASTM C 273
RESIN-FILLED GLASS
RESIN INLET
Ideal for your Process
RESIN
VACUUM BAG
AIR
AIR
SEALING
TAPE
SEALING
TAPE
Easily Bonded, Molded and Fabricated
FILLET
MATERIAL
FILLET
MATERIAL
HOT PLATTEN
Open Molding
Compression
Molding MOLDING
COMPRESSION
LAMINATE FACING
Resin
HOT PLATTEN
CORE
HOT PLATTEN
Non-Woven
ADHESIVE
INFRARED HEATING
Hat Section
PRESSURE
MALE
MOLD
LAMINATE FACING
LAMINATE FACING
LAMINATE FACING
CORE
ADHESIVE
CORE
ADHESIVE
Resin
Non-Woven
Resin
Non-Woven
HOT PLATTEN
Hat Section
RTM
Hat Section
AUTOMATIC TRANSFER
LAMINATE FACING
LAMINATE FACING
LAMINATE FACING
RESIN-FILLED GLASS
RESIN INLET
CORE
RTM
RTM
Resin
Non-Woven
RESIN
ADHESIVE
VACUUM BAG
AIR
Hat Section
AIR
SEALING
TAPE
SEALING
TAPE
LAMINATE
FACING GLASS
RESIN-FILLED
Adhesive resin can be
applied in a variety of
RTM from spray, rolled,
methods
brushed and troweled
COMPRESSION
RESIN-FILLED
on. TakingMOLDING
care
toGLASS
set the
honeycomb core into the
resin with hand pressure
will ensure the resin comes
COMPRESSION MOLDINGin full contact with the non woven bonding surface of the
COMPRESSION MOLDING
PP Honeycomb. The lightweight non woven will not take
much resin to wet out (400 g/m2 or .08 psf), but getting good
coverage and penetration through some process pressure
is important. When applying the resin straight to the core
BUOYANCY
COMPRESSION
surface
orMOLDING
through a wet, glass laminate schedule, rolling
the surface with a hard roller will also ensure good wet out
and contact between the core and laminate. For complex
shapes, scoring the PP Honeycomb will allow it to drape
BUOYANCY
and contour to the shape desired and thus providing good
BUOYANCY
contact to the core-laminate bond line.
RESIN INLET
RESIN INLET
VACUUM BAG
RESIN
RESIN-FILLED GLASS
FILLET
MATERIAL
FILLET
MATERIAL
FILLET
MATERIAL
FILLET
MATERIAL
RESIN
VACUUM BAG
AIR
SEALING AIR
TAPE
SEALING
TAPE
PP HONEYCOMB CORE
AIR
AIR SEALING
TAPE
SEALING
TAPE
FILLET
MATERIAL
FILLET
MATERIAL
RESIN INLET
RESIN
INFRARED HEATING
VACUUM BAG
AIR
PRESSURE
AIR
PP HONEYCOMB CORE
SEALING
TAPE
FILLET
MATERIAL
FILLET
AUTOMATIC TRANSFER
MATERIAL
INFRARED HEATING
PRESSURE
INFRARED HEATING
PRESSURE
MALE
MOLD
MALE
MOLD
PP HONEYCOMB CORE
PP HONEYCOMB CORE
MALE
MOLD
SEALING
TAPE
AUTOMATIC TRANSFER
AUTOMATIC TRANSFER
INFRARED HEATING
PRESSURE
18.0 lbs (F )
MALE
MOLD
PP HONEYCOMB CORE
5pcf PP HONEYCOMB
AUTOMATIC TRANSFER
18.0 lbs (F )
5pcf PP HONEYCOMB
18.0 lbs (F )
Vacuum Bagging
1"T × 24" × 24" = .33 ft3, est. 6 lb/ft3 total
.333 × 6 = 2.0 lbs of PP HONEYCOMB
2.0 lbs × 10 (Bouyancy Factor) = 20 lbs
5pcf PP HONEYCOMB
Traditional ‘wet’ vacuum bagging requires a standard PP
BUOYANCY
film barrier under the non woven of the PP Honeycomb.
This will minimize the amount of resin penetration into the
cells of the honeycomb while under vacuum pressure.
Though not 100% non porous, this film barrier provides
enough of a barrier that 90% of the resin will stay at the
bond line and in the reinforcement during the process. The
amount of penetration will depend on resin viscosity, gel
time, process temperature and ultimate vacuum pressure.
1"T × 24" × 24" = .33 ft3, est. 6 lb/ft3 total
.333 × 6 = 2.0 lbs of PP HONEYCOMB
1"T × 24" × 24" = .33 ft3, est. 6 lb/ft3 total
2.0 lbs × 10 (Bouyancy Factor) = 20 lbs
.333 × 6 = 2.0 lbs of PP HONEYCOMB
2.0 lbs × 10 (Bouyancy Factor) =5pcf
20 lbs
PP HONEYCOMB
18.0 lbs (F )
1"T × 24" × 24" = .33 ft3, est. 6 lb/ft3 total
.333 × 6 = 2.0 lbs of PP HONEYCOMB
2.0 lbs × 10 (Bouyancy Factor) = 20 lbs
PP Honeycomb with a variety of thermoplastic stress skins
can be formed through a combination of conventional
BUOYANCY
thermoforming and compression
molding processes.
Depending on the complexity of the part geometry, part
thickness, Honeycomb density and stress skin type and
amount, the process parameters of time, temperature and
18.0 lbs (F )
pressure will vary. The process
objective is to drive enough
5pcf PP into
HONEYCOMB
temperature
the facing materials such that they are
near their melting point for molding and laminating to the
honeycomb core. As the stress skins heat up, so does
the internal honeycomb core. The amount of heat on the
honeycomb core should only be enough to mold into the
desired shape. Too much heat internally on the honeycomb
core will cause it1"Tto× melt
= .33loose
24" × 24"and
ft , est. 6its
lb/ftstructure.
total
3
3
.333 × 6 = 2.0 lbs of PP HONEYCOMB
2.0 lbs × 10 (Bouyancy Factor) = 20 lbs
HOT PLATTEN
LAMINATE FACING
HOT PLATTEN
Resin
Closed Molding
Non-Woven
Cold and Hot Platen Press
CORE
ADHESIVE
LAMINATE FACING
Hat Section
Resin
LAMINATE FACING
ADHESIVE
CORE
Hat Sect
LAMINATE FACING
RTM
HOT PLATTEN
HOT PLATTEN
LAMINATE FACING
Uniform and constant pressure during the adhesive cure cycle
ensures a good bond line. This can be accomplished both in
Cold and Hot Platen press processes.
Choosing which press
RTM
process will be dictated by the resin-adhesive chosen to
laminate the PP Honeycomb to the stress skin material. Resin
out-gassing and thermal expansion need to be accounted
RESIN-FILLED
for during Hot Platen press process to
ensure anGLASS
optimum
bond between the PP Honeycomb
and
the
stress
skin.
RTM
RESIN
LAMINATE FACING
RESIN INLET
HOT PLATTEN
RESIN
Resin
Resin
RESIN-FILLED GLASS
CORE
CORE
Non-Woven
Non-Woven
ADHESIVE
ADHESIVE
Hat Section
Hat Section
LAMINATE FACING
VACUUM BAG
LAMINATE FACING
LAMINATE FACING
AIR
AIR
CORE
SEALING
TAPE
Non-Woven
ADHESIVE
SEALING
TAPE
Hat Section
RTM
LAMINATE FACING
FILLET
MATERIAL
Resin
RESIN INLET
VACUUM BAG
Easily
Fabricated
HOT PLATTEN
RESIN-FILLED GLASS
FILLET
MATERIAL
RESIN INLET
RTM
HOTRESIN
PLATTEN
VACUUM BAG
RESIN INLET
AIR
VACUUM BAG
SEALING
SEALING
TAPE
TAPE
LAMINATE FACING
AIR
LAMINATE FACING
SEALING
TAPE
RESIN-FILLED GLASS
RESIN-FILLED GLASS
RESIN
AIR
AIR
FILLET
MATERIAL
AIR
AIR
SEALING
TAPE
SEALING
ResinTAPE
SEALING
TAPE
Resin
Non-Woven
FILLET
MATERIAL
Lite RTM, Closed Bag or Vacuum Infusion
at
HOT processes
PLATTEN
FILLET
MATERIAL
room temperature can be accomplished with Plascore PP
Honeycomb — Infusion Grade. The open cell structure of
the honeycomb is
sealed, thereby allowing
the flow of resin
COMPRESSION
MOLDING
COMPRESSION MOLDING
COMPRESSION MOLDING
during processing to stay at the bond line with no or minimal
penetration into the honeycomb core. Strategically placed
RTM
RTM
throughINFRARED
holes HEATING
allow resin to flow top to bottom. PRESSURE
Plascore
PP Honeycomb — Infusion Grade does not have resinMALE
flow
RESIN-FILLED GLASS
RESIN-FILLED GLASS
HONEYCOMB
CORE grade reinforcements,
MOLD
COMPRESSION MOLDING
paths in its surface. PP
Using
infusion
COMPRESSION MOLDING
additional flow medium and infusion grade resins is critical
RTM
to allowing good resin flow through the reinforcements.
RESIN
RESIN INLET
FILLET
CORE
MATERIAL
CORE
FILLET
ADHESIVE
MATERIAL
ADHESIVE
Hat Section
Hat Section
VACUUM BAG
AIR
LAMINATE FACING
AIR
SEALING
LAMINATE FACINGResinTAPE
FILLET
MATERIAL
CORE
FILLET
MATERIAL
LAMINATE FACING
SEALING
TAPE
Non-Woven
FILLET
MATERIAL
ADHESIVE
Hat SectionINFRARED HEATING
PRESSURE
INFRARED HEATING
PRESSURE
MALE
MOLD
PP HONEYCOMB CORE
MALE
MOLD
PP HONEYCOMB CORE
LAMINATE FACING
RESIN
RESIN INLET
SEALING AIR
TAPE
PP HONEYCOMB CORE SEALING
TAPE
AUTOMATIC TRANSFER
RESIN-FILLED GLASS
RESIN
AIR
AIR
PRESSURE
TAPE
PP Honeycomb is easily cut
BUOYANCY
with BUOYANCY
a razor knife, circular
PP HONEYCOMB CORE
saw, band saw, wire saw,
CNC water jet, CNC ultrasonic
knife
and steel rule die
COMPRESSION MOLDING
COMPRESSIONprocesses.
MOLDING
punching
FILLET
MATERIAL
FILLET
MATERIAL
5pcf PP HONEYCOMB
5pcf PP HONEYCOMB
BUOYANCY
INFRARED HEATING
PRESSURE
INFRARED HEATING
PRESSURE
MALE
× 24" = .33 ft3, est. 6 lb/ft3 total
1"T × 24"MOLD
6 = 2.0 lbs of PP HONEYCOMB
.333 × MALE
MOLD
2.0 lbs × 10 (Bouyancy Factor) = 20 lbs
18.0 lbs (F )
5pcf PP HONEYCOMB
PP HONEYCOMB CORE
3
× 24" = .33 ftCORE
1"T ×PP24"HONEYCOMB
, est. 6 lb/ft3 total
.333 × 6 = 2.0 lbs of PP HONEYCOMB
2.0 lbs × 10 (Bouyancy Factor) = 20 lbs
COMPRESSION MOLDING
AUTOMATIC TRANSFER
AUTOMATIC TRANSFER
INFRARED HEATING
18.0 lbs (F )
PP HONEYCOMB CORE
MALE
MOLD
18.0 lbs (F )
FILLET
MATERIAL
BUOYANCY
AIR SEALING
TAPE
INFRARED HEATING
SEALING
18.0 lbs (F )
SEALING
TAPE
FILLET
MATERIAL
AIR
MALE
MOLD
FILLET
MATERIAL
FILLET
MATERIAL
AUTOMATIC TRANSFER
VACUUM BAG
SEALING
TAPE
AUTOMATIC TRANSFER
VACUUM BAG
AIR PRESSURE
INFRARED HEATING
RESIN INLET
AUTOMATIC TRANSFER
RESIN
RESIN INLET
VACUUM BAG
PRESSURE
MALE
× 24" = .33 ft3, est. 6 lb/ft3 total
1"T × 24"MOLD
.333 × 6 = 2.0 lbs of PP HONEYCOMB
2.0 lbs × 10 (Bouyancy Factor) = 20 lbs
5pcf PP HONEYCOMB
AUTOMATIC TRANSFER
BUOYANCY
BUOYANCY
Non-Woven
BUOYANCY
AUTOMATIC TRANSFER
14
16
12
14
10
12
8
10
6
8
4
6
2
4
Key Performance Criteria
Outperforms Other Cores and Laminates
¾"
Plywood
¾"
Plywood
2
FORCE
¾" PP
Honeycomb
with 3mm
¾" PP
Luaun
Honeycomb
both sides
MATERIAL
0.5
0.6
0.7
0.8
0.9
BUOYANCY
FORCE
Core Type
Relative
Cost
Relative
Weight
Relative
Deflection
PP Honeycomb
1
1
1
Balsa
1.2
1.25
0.9
5 pcf
Resin
In most applications with moderate loading
and unsupported
spans of 24"
Area = Energy
Absorbed
or greater, PP Honeycomb core can provide a more cost effective solution
than other core materials with higher shear properties. By balancing the
0
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
overall sandwich thickness with
an0.1appropriate
laminate
type
and
amount,
DISPLACEMENT
PP Honeycomb provides enough shear resistance to achieve most design
deflection criteria in these cases. As the shear deflection component of total
deflection is generally a smaller contributor than the laminate's contribution in
Hat Sectioncore solution.
bending, PP Honeycomb becomes an effective
9.5 pcf
Relative
Relative
Relative
Panel Reference Type:
Type
Weight
¾"T xCore
48" x 48",
.02"T aluminumCost
both sides, simply
supported,Deflection
center load.
FLEXURAL
PP Honeycomb
1
RESPONSE
1
FLEXURAL
Balsa
RESPONSE
5 pcf
Resin
16
both sides
both sides
9.5 pcf
Balsa
9.5 pcfX-PVC
¾" PP
Honeycomb
¾" PP
Honeycomb
with 3mm
Luaun
both sides
4
with 0.5mm
Glass - PP
both sides
Varying the honeycomb cell size,2 density ¾"
and thickness, in combination with
Plywood
BUOYANCY
the porous non woven polyester surfacing veil, one can tune PP Honeycomb
to a specific frequency range for optimum absorption
efficiency. Up to 99%
MATERIAL
sound absorption can be achieved.
BUOYANCY
Unaffected by Moisture
The mechanical properties remain unaffected even after long periods of
exposure to moisture. Some minimal air drying may be required prior to
FLEXURAL RESPONSE
laminating to remove any residual moisture from the surface or cells of
the honeycomb. Always store the material
Balsa in a dry environment.
9.5 pcf
SHEAR STRESS
X-PVC
5 pcf
VALUE RATIO
PERCENT LOSS
ABSORPTION
ABSORPTION
COEFFICIENT
COEFFICIENT
Efficient Sound Absorber
6
1.5
1.0
5 pcf
Relative
Cost
5 pcf
Unaffected by Most Chemicals
Area = Energy Absorbed
Balsa
9.5 pcf
10
PP Honeycomb
5 pcf
Area 10
= Energy Absorbed
20
0.5
10
30
40
% SHEAR STRAIN
20
1.5
30
40
1.0
1.0
SOUND
Relative ABSORPTION
Relative
Relative
PP HoneycombDeflection
Balsa
Cost
Weight
MATERIAL
PLASCORE
PP30-5
(5 pcf)
SOUND ABSORPTION (9.5 pcf)
Ex. Panel ¾"T x 48"PP
withHoneycomb
.02"T aluminum 5skins
pcfboth sides,
PLASCORE
simply supported,
center load PP30-5
PP Honeycomb 5 pcf
0.8
0.5
1.0
0.6
0.8
0.4
0.6
0.2
0.4
Wet Strength Loss
Plascore
Marine
Ex. Panel
¾"T x 48"
with .02"T aluminum skins both sides,PVC
Balsa
Paper HC
0.2 simply supported,
PP
Plywood
1000
2000
4000
5000
6000Foam
center 3000
load
13%
0%
½" T
1
FREQUENCY
(Hz)
20%
1000
2000
3000
FREQUENCY (Hz)
4000
5000
½" T
6000
1
Wet Strength Loss
40%
After Exposure
to 120˚F, Condesing Humidity
56%
58% for 7 Days
59%
60%
Plascore
PP
Marine
Plywood
Balsa
Paper HC
PVC
Foam
13%
0%
20%
40%
56%
60%
59%
58%
CORE COMPARISON
Flammability
Balsa
Foam
Aluminum
3
Balsa
DENSITY
lb/ft +
Foam
Aluminum
PP Honeycomb
SOUND ABSORPTION
PLASCORE PP30-5
DENS
lb/f
DENS
lb/f
PP Honeycomb
Balsa
MATERIAL
After
Exposure to 120˚F, Condesing Humidity for 7 Days
(5 pcf)
(9.5 pcf)
oneycomb
PTION COEFFICIENTSHEAR STRESS
% SHEAR STRAIN
0.6
0.2
60%
0.9
40
PP Honeycomb is unaffected by most acids, bases20 and to 30
Flammability:
When tested to UL94 Horizontal Burn, the
X-PVC
% SHEAR
STRAIN
a lesser degree, organic substances and solvents.
Certain
material
is flammable. When
5 pcf
+ used in conjunction with a
chemical concentrations and temperature variables may
variety of stress skins, Flammability ratings to UL 94,
SOUND ABSORPTION
PP HoneycombFMVSS 302, ASTM E84, DIN 4102 can be achieved.
reduce resistance; Refer to standard PPPLASCORE
chemical resistance
PP30-55 pcf
CORE COMPARISON
charts for additional information andArea
reference
points.
= Energy Absorbed
PP Honeycomb 5 pcf
Exposure and evaluation testing is always recommended
to
1.0
10
20
30
40
determine the actual affect to the honeycomb.
0.4
40%
60%
Relative
Relative
PP Honeycomb
Weight 5 pcfDeflection
Area = Energy Absorbed
FLEXURAL RESPONSE
PP Honeycomb
0.8
20%
40%
% SHEAR STRAIN
MATERIAL
8
1.25
X-PVC
12
10
1.2
1
20%
Panel Reference Type: 5 pcf
¾"T x 48" x 48", .02"T aluminum both sides, simply supported, center load.
PERCENT LOSS
DAMPENING RATIO DAMPENING RATIO
14
Most core materials respond similarly
to stress under normal operating loads. As
loading increases the core begins12 to flex to
the increase in shear
Hataccommodate
Section
10
stress on the core. Unlike other core
materials that reach an ultimate yield stress
8
and fail catastrophically, honeycomb,
and in particular Plascore PP Honeycomb,
¾" PP
¾" PP
continues to respond and perform.6 This continued Honeycomb
response indicates
the ability
Honeycomb
with
3mm
with
0.5mm
16
4
of the honeycomb to absorb energy
even after
ultimate
yield
strength
failure.
¾"
Luaun
Glass - PP
Balsa9.5 pcf
VALUE
RATIO
SHEAR
SHEAR
STRESS
STRESS
Continued Performance After Failure
Plywood
0.5
BUOYANCY
1
DISPLACEMENT
Excellent Cost-to-Performance
Value
14
2
1.0
0.5
Ex
si
PERCENT
PERCENT
LOSSLOSS
0.4
1.5
1.0
Ex
si
Kevlar®
0.3
1.5
MATERIAL
Nomex®
0.2
with 0.5mm
Glass - PP
both sides
mex®
0.1
¾" PP
Honeycomb
with 0.5mm
¾" PP
Glass - PP
Honeycomb
both sides
with 3mm
Luaun
both sides
Area = Energy Absorbed
0
VALUE
VALUE
RATIORATIO
DAMPENING
DAMPENING
RATIORATIO
16
F
Area = Energy Absorbed
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
DISPLACEMENT
Rela
Co
Core Type
PP Honeycomb
1
Resin
5 pcf
Balsa
1
9.5 pcf
Panel Reference Type:
¾"T x 48" x 48", .02"T aluminum b
14
Area = Energy Absorbed
12
10
0
8
0.1
0.2
0.3
6
4
2
0.4
0.5
¾"
PP0.6
0.7
0.8
¾"
PP0.9
1
Honeycomb Honeycomb
DISPLACEMENT
with 3mm
Luaun
both sides
¾"
Plywood
with 0.5mm
Glass - PP
both sides
Relative
Cost
1.5
1.0
0.5
PP Honeycomb
MATERIAL
MATERIAL
Resin
5 pcf
Ex. Panel ¾"T x 48" with
simply supported, cente
Balsa
1
9.5 pcf
Efficient Energy Absorption
Plascore standard 5 pcf PP Honeycomb with non-woven veil
has a Coefficient of Thermal Expansion (CTE) of 8.0 x 10E-5
inch / inch • °F.
0.2
0.2
0.3
0.3
0.4
0.4
FORCE
FORCE
10
8
6
4
2
0.5
0.5
0.6
0.6
0.7
0.7
0.8
0.8
DISPLACEMENT
DISPLACEMENT
¾" PP
Honeycomb
0.9
0.9
1
1
¾" PP
Honeycomb
with 0.5mm
FLEXURAL RESPONSE
with 3mm
Luaun
both sides
¾"
Plywood
Balsa
9.5 pcf
X-PVC
Glass - PP
both sides
20%
40%
Relative
Cost56%
Rela
Rela
Core Type
Co
Core Type
Co
1.5
60%
1.0
PP Honeycomb
PP Honeycomb
5 pcf
1
1
Balsa
Balsa
9.5 pcf
1.
1
0.5 5 pcf
9.5 pcf
MATERIAL
MATERIAL
Panel Reference Type:
Panel
Reference
Type:
¾"T
x 48"
xEx.
48",Panel
.02"T
aluminum
bo
¾"T
x 48" with
¾"T x 48" x 48", .02"T aluminum bo
simply supported, cent
5 pcf
Hat Section
Hat Section
PERCENT LOSS
VALUE RATIO
0%
PP Honeycomb
BUOYANCY
5 pcf
Area = Energy Absorbed
16
16
14
14
12
12
10
10
8
8
6
6
1.0
4
4
0.8
2
2
0.6
0.4
10
20
30
After Exposure to
+
Plascore
PP
SOUND ABSORPTION
PLASCORE PP30-5
¾" PP 5 pcf ¾" PP
PP Honeycomb
¾" PP
¾" PP
Honeycomb
Honeycomb
Honeycomb
Honeycomb
with 3mm
with 0.5mm
¾"
¾"
Plywood
Plywood
with
3mm
Luaun
Luaun
both
sides
both sides
with
Glass0.5mm
- PP
Glasssides
- PP
both
both sides
Balsa
1000pcf 2000
9.5
3000
FREQUENCY (Hz)
4000
5000
½" T
1.0
1.0
40%
3
MATERIAL
MATERIAL
Ex. Panel ¾"T x 48" with .
Ex. Panel
¾"T x 48"cente
with
simply
supported,
simply supported, cente
6000
–
1
We
After ExposureWe
to 1
After Exposure to 1
Plascore Marine
PP
Plywood
Plascore
Marine
PP
Plywood
0%
0%
Area = Energy Absorbed
20
30
% SHEAR STRAIN
SOUND ABSORPTION
PLASCORE PP30-5
56%
0.5
DENSITY
0.5
60%
lb/ft
X-PVC
Plascore PP Honeycomb's thermal
conductivity = .14 W/m • k
BUOYANCY
5 pcf
BUOYANCY
when tested per ASTM C-518. Specific
sandwich panel
performance will vary depending on the definition
of stress
PP Honeycomb
5 pcf
skin material type.
10
Marin
Plywoo
Relative
0%
Relative
Cost
Cost
1.5
1.5
20%
MATERIAL
FLEXURAL
RESPONSE
MATERIAL
Good Thermal Insulation
0.2
We
40
% SHEAR STRAIN
40
PERCENTLOSS
LOSS
ERCENT
Coefficient of
Thermal Expansion
0 14 0.1
0
0.1
12
Marine
Plywood
PP Honeycomb
Plascore PP Honeycomb floats when water temperature and pressure
conditions do not exceed the load carrying capacity of the honeycomb.
Specific gravity of 5 pcf PP Honeycomb with veil = .08; 4 pcf PP Honeycomb
with veil = .065. This equates to a positive buoyancy of approximately 10
times its own weight.
Plascore
PP
Area = Energy Absorbed
Area = Energy Absorbed
VALUERATIO
RATIO
VALUE
PERCENT
LOSS
Provides Positive Buoyancy
After Exposure to 1
16
Resin
Resin
DAMPENING RATIO
PP Honeycomb is available with a non woven facing fused directly to the cell
edge, without any additional films or adhesives. This unique construction
technique optimizes the adhesion of most resins systems to be equal to or
greater than the tensile properties of the non woven itself. The ‘hat’ section
cell edge allows resin to mechanically lock under its geometry.
We
Hat Section
SHEAR STRESS
Fused for Optimal Tensile Properties
Panel Reference Type:
¾"T x 48" x 48", .02"T aluminum b
BUOYANCY
DAMPENINGRATIO
RATIO
DAMPENING
SHEAR STRESSABSORPTION COEFFICIENT
Plascore PP Honeycomb, like many other honeycomb structures, is
an efficient constant force absorber. After the honeycomb passes its
compressive yield strength, it continues to absorb energy through further
deformation at a level near 50% of the yield strength. The absorption is
maintained for 75% of its original thickness.
Re
C
Core Type
20%
20%
40%
40%
60%
60%
+
neycomb
Plascore PP Honeycomb when used as a core material in a lightweight
composite sandwich structure provides the user the benefit of a lightweight
and rigid structure along with a vibration dampening medium. ¾”t PP
Honeycomb core sandwich panels that are near the same flexural rigidity
to ¾”t plywood can be less than ½ the weight and have about to 235% more
dampening. The PP Honeycomb sandwich panel dissipates vibration 2.35
times faster than plywood.
16
VALUE RATIO
Quickly Dissipates Vibration
DAMPENING RATIO
FORCE
Hat Section
56%
56%
PP Honeycomb is specified as follows:
Material - Cell Size - Color - Thickness
Cell size in mm
T = Trimmed
U = Untrimmed
Part dimensions in inches
(T x W x L)
PP1 - 5.0 - N1 - 8 - 01 - T - N - 0.500 - 72.000 - 78.000
Material Type (PP)
(Virgin Grade)
Material density
in lbs/ft.3
Availability:
Densities: 3.5 to 20.0 pcf
Thickness: ¼" - 6" Laminated;
Up to 24" open cell
Storage:
Length: Up to 50'
Width: 72" max.
Color
(Natural)
N = No scoring
S = Scoring
Skin Types:
00 — Open Cell
01 — Standard Non Woven
10 — Standard Non Woven with Film Barrier
20 — Infusion Grade
30 — Reinforced PP Facings
Tolerances: Length: Width: Thickness: Open Cell: ± .125"
± .125"
± .02"
± .03"
w/reinforced PP facings ± .03"
Density: ± 10%
Store material flat and horizontal.
Store material in a dry and covered area, protected from UV sunlight and extreme temperatures.
Material may need to be dried prior to use if surface moisture is present.
ISO-9001 Quality
Plascore manufacturing standards meet or exceed North American and
international industry requirements. Plascore, Inc. is ISO-9001 registered,
employing Lean Principles throughout design, manufacturing and
administration. In addition to our proprietary honeycomb manufacturing
process, our value-added capabilities include adhesive development,
CNC machining, powder coating, welding, thermoset and thermoplastic
laminating and assembly. This extensive capability, along with Plascore
JIT, Kanban and sequencing programs, allows us to maintain rigid
quality standards on all components, control project scheduling and
delivery in the manner best suited to the client’s specific needs.
Plascore, Inc., employs a quality management system that is AS/EN/JISQ 9100, ISO 9001:2008 and ISO 14001:2004 certified.
IMPORTANT NOTICE: The information contained in these materials regarding Plascore’s products, processes, or equipment, is
intended to be up to date, accurate, and complete. However, Plascore cannot warrant that this is always the case. Accordingly,
it is a purchaser’s or user’s responsibility to perform sufficient testing and evaluation to determine the suitability of Plascore’s
products for a particular purpose. Information in these materials and product specifications does not constitute an offer to sell.
Your submission of an order to Plascore constitutes an offer to purchase which, if accepted by Plascore, shall be subject to
Plascore’s terms and conditions of sale. PLASCORE MAKES NO WARRANTIES OF ANY KIND REGARDING THESE MATERIALS
OR INFORMATION, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Plascore owns and shall retain all worldwide rights in its
intellectual property, and any other trademarks used in these materials are the property of their respective owners. The
information in these materials shall not be construed as an inducement, permission, or recommendation to infringe any patent
or other intellectual property rights of any third parties. © 2014 Plascore, Inc. All Rights Reserved. v04.23.14
Corporate Headquarters
Plascore Incorporated
615 N. Fairview St.
Zeeland, MI 49464-0170
USA
Phone Toll Free
Fax
(616) 772-1220
(800) 630-9257
(616) 772-1289
Web
Email
www.plascore.com
[email protected]
Europe
Plascore GmbH&CoKG
Feldborn 6
D-55444 Waldlaubersheim
Germany
Phone
Fax
+49(0) 6707-9143 0
+49(0) 6707-9143 40
Web
Email
www.plascore.de
[email protected]